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Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola
Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola was established on 20th October, 1969 with its head-quarter at Akola. This Agricultural University was named after the illustrious son of Vidarbha Dr. Panjabrao (alias Bhausaheb) Deshmukh, who was the Minister for Agriculture,Govt. of India. The jurisdiction of this university is spread over the eleven districts of Vidarbha. According to the University Act 1983 (of the Government of Maharashtra), the University is entrusted with the responsibility of agricultural education, research and extension education alongwith breeder and foundation seed programme.
The University has its main campus at Akola. The instructional programmes at main campus are spread over in 5 Colleges namely, College of Agriculture, College of Agricultural Engineering & Technology, College of Forestry, College of Horticulture and Post Graduate Institute. At this campus 4 degree programmes namely B.Sc.(Agri.) B.Sc. (Hort.), B.Sc. (Forestry) and B.Tech. (Ag. Engg.) , two Master’s Degree Programmes viz. M.Sc.(Agri.) and M.Tech. (Agri.Engg.) and Doctoral Degree Programmes in the faculties of Agriculture and Agril. Engineering are offered.
The University has its sub-campus at Nagpur with constituent College, College of Agriculture which offers B.Sc.(Agri.) and M.Sc.(Agri.) degree programmes. The Nagpur Campus is accomplished with a garden, surrounded by its natural beauty and a well established Zoo which attract the general public and visitors to the city. A separate botanic Garden is being maintained on 22 hectares with a green house for the benefit of research workers.
In addition there are 2 affiliated grant-in-aid colleges and 14 private non-grant-in-aid colleges under the umbrella of this University
A Central Research Station is situated at the main Campus which caters to the need of research projects undertaken by Crop Scientists of the principle crops of the region are Cotton, Sorghum, Oilseeds and Pulses.
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ThesisItem Open Access CHARACTERIZATION OF SOILS UNDER ORGANICALLY GROWN SPINACH AND ONION FARMERS IN NAGPUR DISTRICT.(Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra., 2019-09-19) PABLE, GANESH PANDURANG.; Ghodpage, Dr. R. M.The field investigation in relation to "characterization of soils under organically grown spinach and onion farmers in nagpur district” was carried out during kharif season of 2017 - 18 at the organic farmer’s fields of Nagpur district to assess the soil properties, quality and yield under spinach and onion cultivation on farmers field as influenced by various organic resources. Soil samples of 0-15 and 15-30 cm depth were collected randomly after the harvest of crop from five locations viz., Selu, Gangner, Saoner, Kamathi and Chinchbhavan of Nagpur district and also selected for recording various observations and collected plant samples for quality parameters. Crop yield of spinach and onion was noted from farmer’s field of above locations. The farmers were applied Jivamrut @ 500 lit ha-1. + Dashparni @ 500 lit. ha-1 + Ghanjivamrut @ 500 kg ha-1 + Ganjar gawat extract @ 200 lit.ha-1) and FYM @ 5 to 10 t ha-1. Since 8 to 18 yrs. Ghanjivamrut was prepared with the mixture of partially decomposed FYM + Jivamrut. by properly mixing 3-4 time at one week interval and ready for use within 40-45 days. Jivamrut was prepared by taking 10 kg cow dung + 10 lit. cow urine + 2 kg jaggery + 2 kg gram flour + half kg organic rice soil (soil from bunds). Dashaparni also prepared with the use of 10 different type of leaves with fermentation. These organic inputs were applying continuously from last 8 to 18 years for crop. The results revealed that soil pH was reduced due to continuous incorporation of high amount of organic sources and electrical conductivity of soil (0.21 to 0.69 dS m-1) remained almost unchanged due to incorporation of organic sources. The soil organic carbon was recorded between 4.3 to 7.20 g kg-1 in the crop treated with various doses of organic inputs. Increased hydraulic conductivity of soil associated with decreased in bulk density due to long term effect of various organic sources. The soil available N was highest at Gangner location (218 kg ha-1), which is increased by 33.48 % with the application of FYM 7 t ha-1 to onion over combination of Jivamrut + Ghanjivamrut + Dashaparni + GGE. The application of organic inputs resulted the low available P in soil. The soil available potassium varied from 371.60 to 487.40 kg ha-1 indicates high in range. The variation in available sulphur (9.92 to 17.3 kg ha-1) was observed and it found sufficient amount in all locations. The use of different organic sources to spinach and onion found useful in maintaining the available micronutrients status. Quality parameters namely ascorbic acid 100 mg-1 of spinach and onion varied from 41 - 50 and 25 - 32 mg-1 with the application of various type of organic. The highest yield of Spinach 9.2 t ha-1 and onion 22.6 t ha-1 was obtained at Chinchbhavan and Saoner, respectively location with the application of balanced amount of FYM 7 t ha-1 and FYM 5 t ha-1 + Ghanjivamrut 500 kg ha-1. From the data of correlation, soil properties of organic carbon, calcium carbonate, available nitrogen and available sulphur were positively correlated with yield of spinach and onion. On the basis of results, the addition of sufficient quantity of FYM, Ghanjivamrut, or combination of FYM + Jivamrut or Ghanjivamrut + Dashaprni + GGE for 10-18 years enhanced the soil fertility, maintained quality and sustained the yield of spinach and onion.ThesisItem Open Access ASSESSMENT OF SOIL FERTILITY STATUS IN SELECTED VILLAGES UNDER JALYUKT SHIVAR IN NAGPUR DISTRICT.(Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra., 2019-08-01) THOMBE, KU. SWATI VITTHALRAO.; Badole, Dr. W. P.The soil of selected villages Shemda, Umtha and Dhurkheda were clayey in texture, having bulk density varied from 1.23 to 1.57 Mg m-3 and hydraulic conductivity of soils varies from 0.70 to 1.30 cm hr-1. The soils of study area were neutral to slightly alkaline in reaction with no salinity hazards. The organic carbon content in these soils showed low to moderately high in category (0.20 to 0.79 %). The CaCO3 content categorized under slightly to moderately calcareous in nature which ranges from 1.00 to 5.37 per cent. The soil of Shemda, Umtha and Dhurkheda villages were observed low to medium in category for available nitrogen (107.8 to 347.6 kg ha-1), medium to high in category for available phosphorous (13.0 to 35.6 kg ha-1), high to very high for available potassium (254.0 to 394.0 kg ha-1)and low to medium for available sulphur (6.65 to 20.0 mg kg-1). The soils of study area is low to medium in category for DTPA-extractable iron (2.11 to 9.00 mg kg-1), medium to high for copper (0.18 to 1.72 mg kg-1) and manganese (4.02 to 8.46 mg kg-1) as per three tier system and moderately high to high in category as per six tier system. The DTPA-extractable zinc was low to high in category as per three tier system and very low to moderate in category as per six tier system of nutrient availability (0.20 to 1.86 mg kg-1). Correlation study revealed that, the yield is positively and significantly correlated with organic carbon (r= 0.545**), hydraulic conductivity (r= 0.521**) and available macronutrients like nitrogen (r= 0.539**), phosphorous (r= 0.501**), potassium (r= 0.289**) and sulphur (r= 0.316**). It also shows positive and significant correlation with DTPA-extractable micronutrients like iron (r= 0.354**), copper (r= 0.423**), manganese (r= 0.451**) and zinc (r= 0.460**). The increase in organic carbon leads to increase in N, P, K and S. The data on various parameters were categorized into low to high as per three tier system and very low to very high as per six tier system based on soil fertility index and fertility classes.ThesisItem Open Access MIRCONUTRIENT STATUS OF DEOLI TAHSIL OF WARDHA DISTRICT.(Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra., 2019-07-30) BAJAD, HARISH SURESH.; Bhoyar, Dr. S. M.The present investigation in relation to “micronutrient status of soil in Deoli tahsil of Wardha district” was undertaken during 2018- 19. Surface soil sample were collected by systemic survey using georeferences system from Deoli tahsil of Wardha district. Total 75 soil samples were collected that represent all area. Soils of Deoli tahsil of Wardha district were studied for their physico-chemical properties, major and micronutrient status of surface soils. All the soil under study were slightly to moderately alkaline in reaction, EC values for these soils were within the safe limit. The organic carbon content in these soils showed low to medium status. The free CaCO3 content of these soils ranged from moderately calcareous to calcareous in nature. The average available major nutrient content in these soils show low to medium status for available N (150.62-319.47 kg ha-1), low to medium status for P2O5 (9.51-18.89 kg ha-1) and medium to high status for available K2O (254.55-380.45 kg ha-1). As regards with available S status it varies from 9.23 to 18.54 mg kg-1. Among the micronutrient cation content in soils of Deoli tahsil, available Fe content varies from 3.40 to 11.57 mg kg-1. Mn content varies from 4.96 to 13.80 mg kg-1. Zn status in soils varied from 0.28 to 0.82 mg kg-1.The Cu content varied from 1.2 to 2.68 mg kg-1. B ranged between 0.33 to 0.78 mg kg-1 and showing that these soils are well supplied with Cu, Mn and Fe and low to marginal in Zn and B. The correlation study reveals that availability of major and micronutrient decreases with increase in pH. The increase in organic carbon leads to increase in N, P, K, S and Fe, Mn, Zn, Cu and B. Soil fertility index worked out for major and micronutrients and showed that as per six tier system the nitrogen, phosphorus, Zn and B comes low category, S under moderate, Mn under high, whereas, potassium and Cu comes under very high category.ThesisItem Open Access IMPACT OF LONG TERM ORGANIC SOURCES ON PHYSICAL AND CHEMICAL STATUS OF SOILS UNDER VEGETABLES IN NAGPUR DISTRICT.(Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra., 2019-08-08) PATEL, KU. BABITA.; Ghodpage, Dr. R. M.The field investigation in relation to "Impact of long term organic sources on physical and chemical status of soils under vegetables in Nagpur district” was carried out during kharif - rabi season of 2018 - 19 at the certified organic farmer’s fields of Nagpur district to assess the physic-chemical soil properties and yield of different crops as influenced by various organic resources. Soil samples of 0-15 and 15-30 cm depth were collected randomly after the harvest of crops from different locations of Nagpur district were selected for recording various observations and analytical work. Yield of vegetable crops was noted from farmer’s field. The certified organic farmers are continuously applying FYM @ 10 t ha-1, Ghanjivamrit 500 kg ha-1 and Jivamrit 500 lit. ha-1 from last 11 to 18 years for different crops. The results revealed that soil pH was reduced at surface level due to continuous application of various organic sources. However, electrical conductivity of soil (0.204 to 0.408 dS m-1) remained almost unchanged due to incorporation of organic and inorganic sources. The application of organic inputs has increased organic carbon by 16.64 to 27.18 per cent at different locations over chemical fertilizer alone. The application of FYM @ 10 t ha-1 has continuously increased the available N by 19.24 per cent over the use of inorganic fertilizers alone. The available P content of soil after harvesting of crops varied from 11.61 to 24.89 kg ha-1 and resulted under very low to low in range categories. The application of organic fertilizer (FYM @ 10 t ha-1) recorded an increased in available K content in soil by 5.60 and 4.85 per cent in surface and subsurface soil over the inorganic fertilizers alone. Due to addition of organic sources may be ascribed to the reduction of K fixation and released of K due to interaction of organic material with clays besides the direct K addition in the soil. The variation in available sulphur (8.89 to 18.64 mg kg-1) was observed and it found low to medium amount in all locations. The use of FYM, manurial liquid and combined with organic sources was found useful in maintaining the available micro-nutrient status of soil over the continuous use of inorganic fertilizer alone. The use of organic sources has decreased the bulk density over inorganic fertilizer alone and also has increased the hydraulic conductivity of soil. The value of HC increases ascribed to better aggregation and increased infiltration rate by addition of FYM which directly influenced hydraulic conductivity of soil. The application of FYM @ 10 t ha-1has increased the WHC to the tune of 6.97 per cent at subsurface level over the application of inorganic fertilizer alone. The highest (1.15 cm hr-1) value of the infiltration rate was recorded with plot treated with FYM @ 10 t ha-1 this was due to treatment applied higher doses of FYM might be due to improvement of soil structure and soil aggregates thereby increased macro porosity which resulted in reducing the bulk density of the soil. Higher macro porosity resulted in higher infiltration as the water moves through macro pores during infiltration. The range of mean weight diameter varied from 0.97 to 1.25 mm. Maximum yield of brinjal (310.6 q ha-1) and okra (93.5 q ha-1) was obtained with FYM 10 t ha-1as compared to application of other nutrient sources whereas fenugreek (64.9 q ha-1) and spinach (72.0 q ha-1) resulted maximum in inorganic fertilizer. From the study it can be concluded that, the application of organic inputs improve the physical, chemical and fertility status of soil.ThesisItem Open Access SOIL HEALTH, NUTRITIONAL AND SENSORY QUALITIES UNDER ORGANICALLY GROWN VEGETABLE CROPS.(Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra., 2019-08-23) RAUT, KRUNAL SUDAMJI.; Badole, Dr. W. P.The field investigation in relation to “soil health, nutritional and sensory qualities under organically grown vegetable crops” was carried out during kharif- rabi season of 2017 - 18 at the certified organic farmer’s fields of Nagpur district to assess the impact of organic farming on soil properties, quality and yield of different vegetable crops as influenced by various organic resources. Soil samples of 0-20 cm depth were collected randomly after the harvest of crops from four locations viz., Selu, Kalmeshwar, Kamthee and Chinchbhavan of Nagpur district. The edible part of selected vegetables were collected at maturity stage which are ready for sale and collected plant samples used to study quality parameters. Yield data of crops was noted from farmer’s field of above locations. The certified organic farmers applying FYM @ 5 to 10 t ha-1, Ghanjivamrut @ 500 kg ha-1, Jivamrut @ 500 lit ha-1 and GGE @ 200 lit ha-1 from last 7 to 17 years for different crops. On the basis of the findings of the present study it is revealed that, the organically grown vegetables had higher amount of the mineral, crude fiber and carbohydrate content, compared to conventionally grown vegetables and it also contained higher amount of ascorbic acid. Reduction in soil pH observed due to continuous application of various organic sources to field. However, electrical conductivity of soil (0.22 to 0.48 dS m-1) remained almost unchanged due to incorporation of organic and inorganic sources. The application of organic inputs increased organic carbon by 11.14 to 38.49 % at different locations over fertilizer applied field. The application of organic sources from 7 to 17 years resulted in maximum available N content of soil increased by 6.9 to 34.29 per cent over the application of fertilizers alone. The available P content of soil after harvesting of crops varied from 11.2 to 27.8 kg ha-1 and comes under medium to high range categories. The variation in available sulphur (8.1 to 15.8 mg kg-1) was observed and it found low to moderately high amount in all locations. The use of FYM, manurial liquid and solid organic source was found useful in maintaining the available micro-nutrient status of soil over the continuous use of fertilizer. From the study it can be concluded that, the application of organic inputs improve the chemical properties and fertility status of soil. In case of yield due to organic sources littilbit decreased.ThesisItem Open Access SOIL CHARACTERIZATION AND LEAF NUTRITIONAL STATUS OF ACID LIME ORCHARDS OF PATUR BLOCK OF AKOLA DISTRICT.(Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra., 2019-08-09) GADGE, KU. PRIYA SUDHAKAR.; Raut, Dr. M. M.The present investigation in relation to “SOIL CHARACTERIZATION AND LEAF NUTRITIONAL STATUS OF ACID LIME ORCHARDS OF PATUR BLOCK OF AKOLA DISTRICT” was undertaken during 2018-19. Twenty orchards from healthy condition were selected on the basis of their yield performance and visual observations from five locations of Patur block viz., Wadegaon, Sasti, Patur, Mazod and Goregaon were selected to evaluate the soil characteristics and leaf nutritional status and fruit quality of acid lime. Twenty soil samples were taken from 0-30 and 30-60 cm depth randomly selected over the field of acid lime and collected leaf and fruit samples were analyzed for quality parameters. The results indicated that, the soil reaction was slightly to moderately alkaline with pH value varied from 7.35 to 8.14, EC ranges from 0.234 to 0.324 dS m-1 indicating the non saline nature of these soils, free calcium carbonate varied from 5.63 to 9.42 per cent. As all soils contained more than 5 per cent CaCO3 they were categorized as calcareous soils. Organic carbon showed decreasing trend with soil depth and soils contained medium to moderately high in organic carbon. The available nitrogen was found to be low to medium, phosphorus was low, potassium was high to very high and sulphur was low to moderate. The DTPA extractable micronutrients in soil were moderately high for zinc, iron, copper and manganese. The leaf nutrient status of study area was found to be low to optimum in total nitrogen, phosphorus, optimum to high in potassium and low to optimum in micronutrients. Fruits of acid lime were found to be of good quality. Since, the correlations obtained in the present studies did not show any consistent trends.ThesisItem Open Access DYNAMICS OF ORGANIC INPUTS ON SOIL HEALTH, YIELD AND QUALITY OF CROPS UNDER CERTIFIED ORGANIC FARMS IN NAGPUR DISTRICT.(Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra., 2019-08-07) PANGHATE, PREMANAND ARUN.; Kuchanwar, Dr. O. D.The certified organic farmers applying FYM @ 2.5 to 10 t ha-1, Ghanjivamrut 500 kg ha-1 and Jivamrut 500 lit ha-1 from last 8 to 18 years for different crops. The results revealed that soil pH was reduced due to continuous application of various organic sources to field. However, electrical conductivity of soil (0.254 to 0.497dS m-1) remained almost unchanged due to incorporation of organic and inorganic sources. The application of organic inputs increased organic carbon by 7.24 to 61.80 per cent at different locations over fertilizer applied field. The bulk density of soil decreased and hydraulic conductivity and water holding capacity increased by 2.87 to 18.72 per cent due to long term effect of various organic sources. The application of organic sources from 8 to 18 years resulted in maximum available N content of soil by 14.61 to 64.57 per cent over the application of fertilizers alone. The available P content of soil after harvesting of crops varied from 12.09 to 25.56 kg ha-1 and comes under medium to high range categories. The application of organic sources from 8 to 18 years increase soil available potassium by 2.16 to 15.37 per cent over inorganic. The variation in available sulphur (10.64 to 15.38 mg kg-1) was observed and it found low to moderately high amount in all locations. The use of FYM, manurial liquid and solid organic source was found useful in maintaining the available micro-nutrient status of soil over the continuous use of fertilizer. The maximum microbial count was recorded in organic field over the inorganic field. The count of bacteria, fungi and actinomycetes were varied from 15.75 to 25.25 X 107 cfu g-1, 9.0 to 15.75 X 105 cfu g-1 and 7.50 to 14.75 X 105 cfu g-1, respectively. The quality of crops was improved with application of organic inputs over the fertilizers application. The protein per cent of different crops was found maximum in organic field. The oil per cent was recorded nearly same in the organically and inorganically grown crop. From the study it can be concluded that, the application of organic inputs improve the physical, chemical, biological properties and fertility status of soil. In case of yield due to organic sources decreased but quality improved.ThesisItem Open Access ASSESSMENT OF CARBON POOLS AND MICROBIAL DYNAMICS UNDER NAGPUR MANDARIN IN SEMIARID REGION OF CENTRAL INDIA.(Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra., 2019-08-31) JAYBHAYE, YOGESH SHIVANAND.; Kadu, Dr. P. R.The present investigation entitled "ASSESSMENT OF CARBON POOLS AND MICROBIAL DYNAMICS UNDER NAGPUR MANDARIN IN SEMIARID REGION OF CENTRAL INDIA” was carried out during 2018-19. 12 locations of Nagpur mandarin orchard (6 each of Nagpur and Wardha district) were selected. 12 composite soil samples (1 each of location) were collected at 0-30 cm depth for determine the chemical, biological properties and carbon pools of soil. For determine periodical propagule count (cfu g-1 of soil) of Phytophthora spp. 6 locations selected from Nagpur district, 30 soil samples were collected at 0-20 cm depth (5 soil samples from each location) periodically in the month of October, December-2018 and February-2019. From the data, the results revealed that, soil reaction of study area exhibited neutral to slightly alkaline in nature (Soil pH-7.37 to 8.17). In all locations, there was no much variations in electrical conductivity of soil and found non-saline in nature (0.24 to 0.43 dS m-1). The calcium carbonate in soil recorded from 2.90 to 4.10 per cent resulted under moderately calcareous in nature. The values of soil organic carbon (5.80 to 7.70 g kg-1) observed under medium to moderately high.Soils under study area were low in available nitrogen and available phosphorus in soils found low to moderately high (13.44 to 21.28 kg ha-1). All the soils under investigation were found very high in available potassium. The maximum microbial count was recorded in locations where more organic inputs applied compared to other, the count of bacteria, fungi and actinomycetes were varied from 14.13 to 21.93. X 107 cfu g-1, 10.33 to 13.66 X 105 cfu g-1 and 4.33 to 7.66 X 105 cfu g-1 respectively. The total of very labile and labile carbon fractions varied from 1.65 to 3.62 g kg-1 under different management practices which contribute 22.32 to 37.47 per cent of TOC whereas, the total value of passive pool comprises LLC and NLC varied from 5.69 to 6.54 g kg-1 which constitute 62.52 to 77.67 per cent of TOC. The contribution of carbon pools was in order non labile C (61.98%) > very labile C (18.80%) > labile C (11.08%) > less labile C (8.13%). Propagule counts of Phytophthora spp. varied from 20.00 to 34.20 cfu g-1 of soil amongst October, December-2018 and February-2019 months. Higher cfu g-1 of soil was recorded in month of December (29.66) as compared to October (27.20) and February (22.40). Positively significant correlation was recorded between intensity of Phytophthora with the soil pH (r=0.536*) and (r=0.409**), EC (r=0.447**) and (r=0.740*), Available K (r=0.439**) and (r=0.436**) and calcium carbonate (r=0.709*) and (r=0.422**), respectively in the month of October and December, 2018. The highest fruit yield of Nagpur mandarin (22 t ha-1) was obtained at location Dhanodi with the continuous application of fertilizers (300:100:125 g NPK + 40 kg FYM per tree with age of 12 years Nagpur mandarin. From the study, it can be concluded that, the active pool is an important fraction which maintained the chemical and biological productivity of soil, however, the balanced amount of inorganic nutrients and sufficient quantity of FYM per tree is needed to soil sustainability and fruit yield of Nagpur mandarin, with the age of above 10 years.ThesisItem Open Access ASSESSMENT OF DECOMPOSITION POTENTIAL OF ORGANIC RESIDUES FOR CARBON AND NUTRIENT MINERALIZATION.(Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra., 2019-08-01) PATEL, KU. JAGRITI.; Kausadikar, Dr. P. H.The present study was undertaken to investigate “Assessment of decomposition potential of organic residues for carbon and nutrient mineralization” during the year 2018-19 at soil science and agricultural chemistry section, College of Agriculture, Nagpur. The experiment was laid out in completely randomized design (CRD) with nine treatments replicated thrice. The treatments were absolute control in T1, cow dung mixture in T2, paddy straw in T3, wheat straw in T4, sugarcane trash in T5, gliricidia lopping in T6, subabul leaves in T7, soybean stalks in T8, green gram stalks in T9. Among the organic residue samples used for the present study, soybean stalks mixture was highest in organic carbon i.e., 51.1 per cent, whereas, subabul leaves recorded maximum nitrogen (3.20%) and sulphur (0.18%). P and K were highest in green gram stalks mixture with the values 0.53 and 3.20 per cent, respectively. Initial properties of experimental soil revealed that the soil was low in OC (4.9 g kg-1) low in available N and P and high in available K. Sulphur content of soil was 12.80 kg ha-1. Regarding nutrient mineralization, it was observed that, control pot recorded least N, P and S mineralization whereas, subabul leaves mixture (T7) recorded maximum ammoniacal nitrogen (48.98 mg kg-1, 52.66 mg kg-1, 56.99 mg kg-1 and 44.99 mg kg-1) and nitrate nitrogen (26.25 mg kg-1, 38.02 mg kg-1, 30.01 mg kg-1 and 20.83 mg kg-1) throughout experimentation. Gliricidia lopping mixture ranked 1st by recording maximum P mineralization for 30 (6.99 mg kg-1), 60 (7.33 mg kg-1), 90 (7.55 mg kg-1) and 120 (7.45 mg kg-1) days of experimentation. Sulphur mineralization was also found highest in T6 by application of gliricidia lopping mixture during experimentation. Maximum CO2 evolution was recorded in green gram stalks (T9) and lowest was found in control pot. Maximum value (7.53) for pH was recorded in control and paddy straw mixture recorded lowest (7.21) pH value. EC was also found highest in paddy straw. Soybean stalk mixture (T8) recorded 5.92 g kg-1 which was highest among all treatments. Availability of nutrients was found more in legume residue. Subabul leaves mixture (T7) increase availability of N upto 170.49 kg ha-1 whereas, gliricidia lopping mixture (T6) recorded highest available phosphorus (16.69 kg ha-1) and available sulphur (14.27 kg ha-1). Highest potassium (395.27 kg ha-1) was recorded in green gram stalks mixture (T9). Microbial population was also found highest in legume residue. Gliricidia lopping mixture (T6) recorded 15.33 x 104 cfu g-1 while, subabul leaves mixture recorded highest bacterial count (22.33 x 106 cfu g-1) and highest count for actinomycetes (13.33 x 104 cfu g-1).
