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Master Degree Theses

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Subject: Soil Science and Agriculture Chemistry ×

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Now showing 1 - 9 of 120
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    ThesisItemOpen Access
    Responce to Different levels of NPK based on soil test recommendation on yield content and uptake of nutrients by wheat J-24
    (Agricultural Chemistry and Soil Science Department, N. M. College of Agriculture Gujarat Agricultural University, Navsari, 1979-09) Kalathia, Ramjibhai Jadavbhai; Mehta, P. M.
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    ThesisItemOpen Access
    A Survey of Capacity, Intensity and Rate of Release Factors and Utilization of Soil Phosphorus in Ustochrepts of South Gujarat
    (Agricultural Chemistry and Soil Science Department, N. M. College of Agriculture Gujarat Agricultural University, Navsari, 1985-06) Savalia, Shantilal Gordhanbhai; Mehta, P. M.
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    ThesisItemOpen Access
    Effect of Different Nitrogenous Fertilizers and Methods of Application on Yield, Content and Uptake of NPK by Summer Paddy Ratna
    (Agricultural Chemistry and Soil Science Department, N. M. College of Agriculture Gujarat Agricultural University, Navsari, 1978-09) Patel, Pravinkumar Jagabhai; Mehta, P. N
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    ThesisItemOpen Access
    Comparative Studies of Phosphatic Fertilizers in Low Land Paddy Soils
    (Agricultural Chemistry and Soil Science Department, N. M. College of Agriculture Gujarat Agricultural University, Navsari, 1982-09) Patel, Mohanlal Gomanbhai; Mehta, P. M.
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    ThesisItemOpen Access
    Integrated Nutrient Management in Single Cut Summer Sorghum (CSV-21F) grown Under vertisols of South Gujarat
    (Soil Science and Agricultural Chemistry Department, N. M. Colelge of Agriculture Navsari Agricultural University, 2013) Solanki, J. H; Patel, Z. N.
    The present investigation entitled "Integrated nutrient management in single cut summer sorghum (CS V -21 F) grown under vertisols of South Gujarat" was undertaken during summer season of 2012 at College Farm , N. M. College of Agriculture, Navsari under South Gujarat heavy rainfall zone (AES-lll).
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    ThesisItemOpen Access
    Effect of Irrigation and Fertigation Levels on Yield and Nutrient Uptake by Round Melon
    (Soil Science and Agricultural Chemistry Department, N. M. Colelge of Agriculture Navsari Agricultural University, 2010-03) Shivajirao, Bade Sujit; Patil, R. G.
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    ThesisItemOpen Access
    Assessment of Quality of Major Irrigation Sources and their Influence on Development of Salinity Sodicity in Irrigated Soils in Navsari District of Gujarat
    (Department of Soil and Water Engineering N.M. College of Agriculture Gujrat Agricultural University Campus, Navsari, 2011-07) Zambare, Satish Shantinath; Das, A.
    [n order to evaluate the irrigation water quality and its effect on development on the salinity / sodicity in irrigated soils of Navsari district, 57 numbers of water and 57 numbers of corresponding irrigated soil samples were collected during pre-monsoon (May) and post-monsoon (OctoberNovember) seasons from ten to twelve randomly selected villages of each taluka of Navsari district. Water samples were analyzed for pH, Electrical conductivity (EC), cations (Ca2+, Mg2+, Na'), anions (CO/", HC03', cr, SO/' ), N03', F, Fe2 + as well as Chemical oxygen demand (COD) and biological oxygen demand (BOD). Irrigated soil samples were analyzed for pH, EC, OC, available N, P20, and K20. Sodium adsorption ratio (SAR) and Residual sodium carbonate (RSC) of water and Exchangeable sodium percentage (ESP) of soils were computed. The results on water analysis data of Navsari district revealed that pH varied from 7.97 to 9.32 (moderately to highly alkaline) and from 6.89 to 7.9 I (neutral to slightly alkaline} in pre and post-monsoon season, respectively. Water salinity (EC) varying widely from 0.24 to 6.70 dS m·' (excellent to unsuitable) exhibited mean value of 1.12 dS m·' during pre-monsoon season while, the corresponding values for post-monsoon season were 0.40 to 5.&7 dS m·' (excellent to unsuitable) and 1.07 dS m-', respectively. The categorization of water samples showed that 56.14, 5.26 and 3.50 per cent samples belonged to permissible (0.75-2.25), doubtful (2.25-3 .0) and unsuitable (>3.0) classes, respectively in pre-monsoon season, while in post monsoon season 59.64 per cent samples belonged to permissible salinity class. The CO,>- ions ranged from 0.00 to 0.60 me L-' and were observed only in pre-monsoon samples, while HCO, ions ranged from 3.40 to 15.20 me L-1 and 2.30 to 11.00 me L-' during pre and post-monsoon period, respectively. About cr, >SO and >90 per cent samples were under excellent to good category «4-7) during pre and post-monsoon period, respectively. Soluble SO.-, NOl - and F content of all water samples were well within the permissible limit in both the seasons and well suitable for irrigation purpose. The concentrations of HCOl ·, cr, sol and COl 2 - in water samples were in the order of HCOl> Cl> SO/> cot. The categorization of water samples indicated that 29.82, 49.12, 15.78 and 5.26 per cent water samples belonged to low sodium «!O), medium sodium (to-IS), high sodium (18-26) and very high sodium (>26) classes in respect to SAR in pre-monsoon season, while in post-monsoon season 87.72 and 12.28 per cent samples were under low sodium and medium sodium class, respectively. The RSC of 75.43 per cent water samples belonged to suitable class «1.25 me L-') and rest came under marginal (1.25 to 2.50 me L-'l to unsuitable class (>2.50 me e'l in pre-monsoon season, while in post monsoon season 71.93, 12.28 and 15.79 per cent samples came under the class of suitable, marginal and unsuitable, respectively_ With respect to EC and SAR 77 per cent water was found to belong to high to very very high salinity hazard coupled with low to very high sodicity hazard class in pre-monsoon period while, during post-monsoon period about 61 per cent samples were under high to very very high salinity hazard coupled with medium sodicity hazard class indicating reduction of salinity and sodicity hazard during post monsoon season. EC, SAR and RSC based classification revealed that 28.07, 1.75, 49.13, 21.05 per cent samples belonged to good, marginally saline, high SAR saline and high alkali category, respectively in pre-monsoon season and 78.95, 1.75, 5.26, 1.75, 3.51, 8.77 per cent samples belonged to good, saline, high SAR saline, marginally alkaline, alkali, high alkali class, respectively in postmonsoon seasOn. About 63.15 per cent of pre-monsoon samples were above the prescribed range/limit «250.00 mg L-I ) of COD while, all the samples of both the seasons recorded slightly higher BOD value over prescribed limit (>30 mg L·I) . Analysis of irrigated soils revealed that pH2.l of soil varied from 6.19 to 8.41 (slightly acidic to moderately alkaline) in pre-monsoon season and from 6.12 to 8.12 (slightly acidic to moderately alkaline) in post-monsoon season. 38.59,22.80,22.73 and 38.61 per cent of irrigated pre-monsoon soil samples belonged to mildly alkaline (pH 7.4 to 7.8), moderately alkaline (7.9 to 8.4), slightly acidic to neutral class respectively, while the corresponding values for post-monsoon season were 26.31 , 3.50 and 70.16 per cent, respectively. 23 per cent irrigated soils belonged to slightly saline (EC 1.0 to 2.0 dSm·l ) to highly saline (EC >3.0 dS m·l ) class and rest (77.19%) came under normal class (EC <1.0 dS m-') in pre-monsoon season while, in post monsoon season percentage under normal class increased to 87.71 alongwith 12 per cent samples with slightly to highly saline class. Farmers may be suggested to use gypsum either with irrigation water or on soil for sustaining crop production and soil health. With regard to ESP, 40.35 and 12.28 per cent
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    ThesisItemOpen Access
    Impact of Nutrient Availability on Yield and chemical Composition of Cauliflower (Brassica Oleracea var. botrytis L. Under Drip and Furrow Irrigation
    (Agricultural Chemistry and Soil Science Department, N. M. College of Agriculture Gujarat Agricultural University, Navsari, 1994-01) Sanghani, Labhubhai Ukabhai; Bafna, A. M.
    The s ignif icant l y yie ld and Yie ld co ntributing paramete r s affected due to the irrigation met hods we r e and levels. Signifi cantly highest yie l d o f caulIfl owe r was r eco rd ed at 0.9 IW:CPE ratlo of drip whI ch was 39.8 per cent higher than furrow me thod of irr igatlon. The uptake of N, P , K, Fe, Mn , Zn and Cu by different plant parts of caul iflower was wo rked out . The total uptake of N, P and K was 149 .57, 20.71 and 82 .88 kg/ha, whi Ie Fe, Mn , Zn and Cu was 1504.6, 202.8, 2 14. 0 and 81.5 g/ ha , r espectively at 0 .9 IW: CPE ratl o o f drlp. The availability of nutri e nt s under dlfferent treatme nts was monite r ed by collec ting the sOli sampl es at 30 and 50 DAT a nd at the harvest of the c rop . The plant nutrient s I ike N, P205, K20 and DTPA extractab le Fe, Mn, Zn and Cu availabi l ity was maximum at 0.9 IW :CPE ratio of drlp in the surface laye r of the wet front.
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    ThesisItemOpen Access
    Sustenance of Soil health and Productivity of Sugarcane Through Integrated Nutrient Management in 'Inceptisols' of South Gujarat
    (Agricultural Chemistry and Soil Science Department, N. M. College of Agriculture Gujarat Agricultural University, Navsari, 2006-08) Patel, Gandabhai Govanbhai; Bafna, A. M.
    Sugarcane (Saccharin offlcmarum L) is widely grown In India and it plays a crucial role in both agricultural and industrial economy of country. The producliVitiof sugarcane In South GUJarat IS declining gradually with progress of time. Therefore, an investigation was carried out using sugarcane as a test crop during 2003 - 2005 (plant) and 2005 - 2006 (ratoon) at the RegIOnal Sugarcane Research Station Farm. Navsari Agricultural University, Navsari to study the "Sustenance of sOil health and productivity of sugarcane through integrated nutrient management In Incept/sols of South GUJaral" The treatments V/Z., 100 % RDF (T,), 75% RDF + 25 % N through FYM (T,), 75 % RDF + 25 % N through CSPM (composted sulphltatlon pressmud) (T,), 100 % RDF (T,), 75 % RDF + 25 % N through FYM + bio fertilizers (Azotobacter and PSB) (T5), 75 % RDF + 25 % N through CSPM + b,o fertilizers (Azotobacter and PSB) (T6), 50 % RDF + 25 % N through FYM + bio fertilizers (Azotobacter and PSB) (T,). 50 % RDF + 25 % N through CSPM + blo fertilIZers (Azotobacter and PSB) (T,), 50 % RDF + 25 % N through verml compost + blo fertilizers (Azotobacter and PSB) (T,) and 100 % RDF + 25 % N through FYM + blo fertilizers (Azotobacter and PSB) (T1O) for main crop. The treatments for ratoon crop are, 100 % RDF (T,), 100 % RDF + trash incorporation with cellulolytic culture. (T,), 100 % RDF + trash incorporation with cellulolytic culture (T,), 75 % RDF + green manunng (Sunhemp) (T,), 100 % RDF + trash incorporation with cellulolytic culture + bio fertilizers (Azotobacter and PSB) (T5), 100 % RDF + trash Incorporation with cellulolytic culture + blo fertilizers (Azotobacter and PSB) (T6 ), 50 % RD\ + • green manuring (Sunhemp) + blo fertilizers (Azotobacter and PSB) (T7), 50% RDF + green manuring (Sun hemp) + blo fertilizers (Azotobacter and PSB) (T ,), I I 75 % ROF + 25 % N through vermi compost + bio fertilizers (Azotobacter and pSB) (T,) and 100 % RDF + trash incorporation with cellulolytic culture + blo fertilizers (Azotobacter and PSB) (TIO). The two sets of treatments were tested in sequential manner at fixed site using randomized block design with three replications. The results pertaining to biometric observations viz .. germination recorded at 30, 45 and 60 days after planting of sugarcane. plant as well as millable cane height. number of Internodes/cane and cane girth recorded at harvesting of plant and ratoon sugarcane were not affected significantly due to the different manurial treatments. However. treatment effects were found to be significant on number of millable cane/ha, cane and trash yields of plant and ratoon sugarcane. Among the different treatments, TIO receiving 100 per cent RDF + 25 per cent N through FYM + bio fertilizers in plant and 100 per cent RDF + trash incorporation + bio fertilizers in ratoon sugarcane recorded significantly higher number of mlilable cane (105417 and 99167), cane (92.5 and 72.9 tlha) and trash (26.1 and 197 tlha) Yields which was followed by T " T" T 5 and T 6 treatments The penodical content of nutrients viz. N. P, K, Fe. Mn, Zn and Cu in plant at 60, 120 and 180 DAPIDAR as well as in cane and trash at harvesting was not Influenced significantly due to different manunal treatments But. the effects of manurial treatments were found to be significant on the periodical as well as total uptake of most of the nutrients by plant and ratoon sugarcane In general, treatment TIO registered relatively higher values of total (cane + trash at harvest) uptake of N (142.31 kg/hal, P (37.28 kg/hal, K (157.55 kg/hal, Fe (8514 g/ha), Mn (1434 g/ha), Zn (948 g/ha) and Cu (181.7 g/ha) by plant sugarcane and their corresponding values for ratoon crop were 92.75 kg/ha, 30.98 kg/ha, 9517 kg/ha, 4004 g/ha, 991 g/ha, 605 g/ha and 118.6 g/ha. In most of the cases, lower values of nutrient uptake were recorded with the treatments T 7 and T ". Among the quality parameters studied, only fibre content and commercial cane sugar Yield of plant and rata on sugarcane were affected significantly due to different manurial treatments in plant and ratoon sugarcane. Significantly lower values of fibre content of 15.57 and 1571 per cent were recorded in treatment T, and TIO in plant and ratoon, than treatment T, (16.45 and 1703 %1 where only inorganic fertilizers were applied to both the crops. In contrast. higher values of