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ThesisItem Open Access EFFECT OF ZINC AND SULPHUR ON YIELD, QUALITY AND UPTAKE OF NUTRIENTS BY NIGER ( Guizotia abys s inica Cass) IN LATERITIC SOIL OF KONKAN(DBSKKV DAPOLI, 2006-02) SALVE, SATISH JAMES; Dabke, D.J.On the basis of foregoing results as summarized above, it could be concluded as below: The application of zinc @ 10 and 15 kg ha-1 showed significant and positive increase in number of capitula per plant over 0 and 5 kg Zn ha-1. The seed yield (4.2 q ha-1) was significantly increased due to application of 15 kg Zn ha-1 over no application of zinc. The stover yield (39.44 q ha-1) was increased significantly by application of 15 kg Zn ha-1 over 0, 5 and 10 kg Zn ha-1. The oil content (38.67%) and oil yield (162.04 kg ha-1) were recorded significantly highest by application of 15 kg Zn ha-1 while protein yield (91.38 kg ha-1) was increased significantly with 10 kg Zn ha-1 over no application of zinc. The total uptake of N, P, K and S by niger were recorded highest and significant due to application of Zn15 over no zinc application. The application of 10 and 15 kg ha-1 levels of zinc significantly influenced Zn and Cu content of soil at mid stage of crop over no zinc application. After harvest of crop, available nitrogen and zinc content of soil were significantly enhanced with the application of 15 and 10 kg Zn ha-1, respectively over no application of zinc. The seed (3.92 q ha-1) and stover (36.02 q ha-1) yield were significantly influenced with the application of S15 level over S7.5 level. The quality parameter like protein and oil content recorded highest value of 22.58% and 38.33% respectively with the application of S30 level over S7.5 level while protein and oil yield were significantly increased by the application of S15 over S7.5. Only the nitrogen uptake was significantly influenced with the application 215 215 of S15 level over S7.5 while the 'S' uptake was significantly influenced with the application of S7.5 and S15 levels over S30 level. The application of different levels of sulphur did not influence significantly the chemical properties and available nutrients in soil at mid stage and after harvest of crop. Therefore, application of 15 kg Zn ha-1 + 15 kg S ha-1 along with 40 kg N + 50 kg P2O5 ha-1 (Urea and DAP) and FYM @ 5 t ha-1 is suggested for increasing the seed yield and improving the seed quality of niger grown in lateritic soils of Konkan region during Kharif season which gave the highest seed yield of 4.52 q ha-1.ThesisItem Open Access PHYSICO-CHEMICAL PROPERTIES OF LATERITIC SOIL FROM MANGO ORCHARDS IN RATNAGIRI AND SINDHUDURG Districts(dbskkv., Dapoli, 2006-05) SHINDE, SOMNATH BABURAO; Patil, K.D.The present investigation deals with analysis of physico–chemical properties of lateritic soils of Mango orchards from Ratnagiri and Sindhudurg districts. An attempts has been made to study the physico- chemical properties of soils having depth vary from 0- 30 and 30-60 cm along with quality parameters and nutrient content of Mango pulp from 0-2, 2-10, 10-16, 16-33% slope, respectively. An effort also has been made to find out simple correlations between micronutrients and physico-chemical properties of soil. The salient features of the investigations are briefly summarized below. 5.1 Physico-chemical properties of lateritic soils of Mango orchards. The sand content varied from 44.24 (shirgaon, Rukhi, and Pangari) to 56.33 (Rameshwar) with mean value of 48.43 %, salt content in the range of 12.88 (Dapoli) to 19.82 (Shirgaon and Rameshwar) with mean value of 15.56 % and clay content was varied from 24.19 (Rameshwar) to 42.21 (Pangari) with mean of 36.14 % On the basis of sand, silt and clay the soil varied from sandy clay loam to clay in texture. The bulk density found in the range of 1.20 (Dapoli) to 1.29 (Rameshwar) with mean value of 1.25 Mg m-3. Particle density varied from 2.38 (Dapoli) to 2.59 (Rameshwar) with mean value of 2.47 Mg m-3 was observed. The maximum water holding capacity found in the range of 63.77 (Dapoli and Shirgaon) to 68.72 (Muldhe) with mean of 65.32 %. The pH of lateritic soils ranged from 4.61 (Rameshwar) to 5.40 (Rukhi) with mean of 5.02. All the soil samples were acidic in nature. The electrical conductivity was found in the range of 0.022 (Awashi) to 0.047 (Shirgaon) with mean of 0.035 dSm-1, soils observed to be were low in salt concentrations. The organic carbon ranged from 0.84 (Vengurla) to 1.38 (Rukhi) with mean value of 1.11 %, which is, comes under high to very high ratings of carbon in the soils. The available N varied from 301.84 (Shirgaon) to 510.38 (Dapoli) with mean value of 409.25 kg ha-1. The content available of N was grouped under medium to moderately high rating class. The available P2O5 found in the range of 3.86 (Shirgaon) to 7.00 kg ha-1 (Muldhe) with mean of 5.09 kg ha-1. The soils were categorized under very low class of available P205 content. The available K2O found in the range of 227.30 (Rukhi) to 259.73 kg ha-1wirh mean value of 235.90 kg ha-1. The all soil was categorized under moderately high class of available K2O content. The exchangeable Ca2+ ranged from 1.70 (Pangari) to 2.44 (Rameshwar) with mean of 2.04 cmol (p+)kg-1 and exchangeable Mg2+ found in the range of 0.67 (Rukhi) to 1.29 (Rameshwar) with mean value of 1.11 cmol (p+)kg-1. All the soil was categorized under low class of both the cations. The available sulphur ranged from 0.78 (Muldhe) to 2.57 (Dapoli) with mean value of 1.82 ppm. The soils are found deficient in available sulphur. The DTPA extracted micronutrient such as the available Cu content varied from 1.24 (Rukhi) to 3.56 (Dapoli and Muldhe) with mean of 1.80 mg kg-1. The available Zn varied from 1.35 (Pangari) to 2.71(Muldhe) with mean value of 1.80 mg kg-1. The available Fe varied from 28.94 (Dapoli) to 75.25 (Rameshwar) with mean of 44.15 mg kg-1. The available Mn content varied from 42.54 (Shirgaon) to 61.34 (Muldhe) with mean of 54.12 mg kg-1. The DTPA extractable micronutrients overall rated as above critical limits. The available B found in range of 0.80 (Muldhe) to 2.40 with mean of 1.71 mgkg-1. The available Mo varied from 0.109 (Pangari) to 0.149 (Rameshwar) with mean value of 0.132 mg kg-1 was observed. Both the micronutrients (Mo and B) come under deficient to very low ratings class. 5.2 Physico–chemical properties of lateritic soils from mango orchards at different slopes and depth of soil. The sand and clay content varied from 40.15 to 67.01% and 17.82 to 47.00 % with mean value of 47.67 and 37.41 % respectively. The sand content was found to increase with increase in slope and decrease with increasing depth. The clay content decreased with increasing the slope and increased with increasing depth. The silt content varied from 11.10 to 22.18% with mean of 14.47% similar trend was observed as observed in sand content. Particle density ranged from 2.12 to 2.64 Mg m-3 with mean value of 2.43 Mg m-3. There was no any difference influenced by slope and depth of orchard soils. The bulk density in the range of 1.06 to 1.36 Mg m-3 with mean value of 1.22 Mg m-3. The slope and depth of soil did not influence the bulk density. A range of 54.74 to 72.92 % of maximum water holding capacity was observed with mean value of 63.92 %. Change in MWHC with increase in slope and decreased with increasing the depth. The pH range varied from 4.33 to 5.61 with mean value of 5.05. The pH was increased in slope and depth of soil. The electrical conductivity ranged from 0.025 to 0.059 dSm-1 with mean value of 0.036 dSm-1 . The increasing trend with increasing slope and decreasing trend with increasing the depth of soils was observed. Organic carbon ranged in between 0.042 to 1.83 % with mean value of 1.05 %. There was no change as increased in slope but as increased in depth organic carbon observed to be decreased .The exchangeable Ca2+ ranged from 1.10 to 2.90 cmol (p+) kg-1 with mean value of 2.07 cmol (p+) kg-1. The increasing trend with increase in slope and decreasing trend with increased in depth of soil was found. The exchangeable Mg2+ varied from 0.31 to 1.67 cmol (p+) kg-1 with a mean value of 1.09 cmol (p+) kg-1. The increasing trend with increase in slope and decreasing with increase depth of soil was observed. The available sulphur ranged from 0.32 to 5.33 ppm with mean value of 1.83 ppm. The increase in slope of hill does not affect the content however the increasing trend with increased in depth of soil was observed. The available N varied from 263.20 to 627.00 kg ha-1 with a mean value of 396.48 kg ha-1. The increasing trend with increasing slope of hill and slight decreasing with increasing the depth of soil. The available P2O5 varies from 2.76 to 8.55 kg ha-1 with mean of 5.09 kg ha-1. No change in P2O5 content as increased in slope, however the depth increased the content was decreased. The available K2O is ranged in between 201.60 to 302.40 kg ha-1 with mean value of 235.52 kg ha-1. The increasing trend with increased in slope of orchards and decreasing with increased in depth of soil was observed. The available Zn varies from 0.92 to 3.78 mg kg-1 with mean value of 1.68 mg kg-1, slope does not influenced the trend, however increased in depth of soil the availability of Zn was observed to be decreased. The available Cu varies from 0.51 to 4.32 mg kg-1 with mean value of 1.86 mg kg-1. No any specific trend as increased in slope but as increased in depth, it was decreased. The available Fe found in the range of 14.10 to 77.70 mg kg-1 with mean value of 41.87 mg kg-1 No change or trend increased in slope of orchards, however increased in depth of soil, available Fe observed to be decreased. The available Mn was found in between 28.90 to 97.70 mg kg-1 with mean value of 48.80 mg kg-1. The increasing trend with increase in slope of orchards and decreased with increased depth of soil were observed. The available boron was varies from 1.10 to 3.12 mg kg-1 with mean value of 2.05 mg kg-1 decreasing trend as increase in slope of hill and depth of soil. The available Mo was varied from 0.08 to 0.209 mg kg-1 with mean value of 0.128 mg kg-1 the increasing trend as increasing slope and decreased with increased in depth of soil was observed. 5.3 Relationship between available micronutrients and physico chemical properties of soil. Available Fe was correlated positively and significantly with sand (r = 0.599*), Silt (r = 0.455*), exchangeable Ca 2+ (r = 0.287*), exchangeable Mg2+ (r=0.276*) and available K2O (r=0.361*), while it was correlated significantly negative with clay (r=-0.616*), pH (r=-0.527*) and organic carbon (r=-0.320*). The available Mn had positive and significant relationship with exchangeable ca 2+ (r=0.279*) and available P2O5 (r=0.307*) and negative but significant correlation of Mn was noted with electrical conductivity (r=0.283*). Available Cu was found to correlated positive and significantly with exchangeable Ca2+(r=0.348) exchangeable Mg2+ (r=0.273*), available N (r=0.348*) and available K2O (r = 0.354*) in soil. Available Zn showed positive and significant correlation with available P2O5 (r=0.316*), while it was correlated negatively but significant with pH. (r=-0.369*), organic carbon (r=-0.375*) and available sulphur (r=-0.276*). Available B showed positive and significant relationship with available sulphur (r= 0.840*) while it was correlated negatively but significant with electrical conductivity (r=-0.337*) and exchangeable Ca2+ (r=-0.262*).Available Mo exhibited positive and significant correlation with sand (r=0.282*), Silt (r=0 .279*) available K2O (r=0.325*) while it was correlated negatively but significantly with clay (r=-0.306*) and pH (r=-0.275*). 5.4 Quality parameters and nutrient content of fruit pulp. Maximum T.S.S. of 200Brix (Shirgaon) and minimum T.S.S. of 16.25 0Brix (Pangari) was recorded with mean of 17.89 0Brix. The acidity was found in the range of 0.17 (Awashi) to 0.26 (Shirgaon) with mean value of 0.21 %. The total sugar content was found in the range of 12.73 (Shirgaon) to 14.48 (Rameshwar and Pangari) with mean value of 13.91%. The reducing sugar content found in the range of 4.38 (Vengurla) to 4.99 (Pangari) with mean value of 4.76% was observed. In the mango pulp the total nitrogen varied from 0.76 (Dapoli) to 1.18 (Rameshwar) with mean 0.89%. Total P content in the range of 0.07 (Pangari, Muldhe and Awashi) to 0.11 (Rameshwar) with mean value of 0.09 %. Total K varied from 0.49 (Pangari) to 0.59 (Rukhi, Awashi and Shirgaon) with mean of 0.55%. The total Cu varied from 0.73 (Muldhe) to 1.02 (Shirgaon) with mean of 0.83 μg/100gm pulp the total Fe varied from 1.72 (Shirgaon) to 3.12 (Vengurla) with mean of 2.17 μg/100gm pulp. The total Zn content found in the range of 0.98 (Awashi and Dapoli) to 2.09 (Muldhe) with mean value of 1.37 μg/100gm pulp. The total Mn content varied from 4.66 (Shirgoan) to 5.09 (Dapoli and Awashi) with mean value of 4.97 μg/100 gm pulp. The total B content found in the range of 0.02 (Vengurla) to 0.04 (Awashi) with mean value of 0.03 μg/100 gm pulp was observed in the investigation. 5.5 Quality parameters and nutrient content of mango pulp at various slopes. T.S.S. of pulp was found in the range of 17.38 to 17.96 0Brix with mean value of 17.65 0Brix, acidity found in between the 0.18 to 0.23 % with mean of 0.21%, reducing sugar in the range of 4.61 to 4.87 % with a mean value of 4.74 %, and total sugar found in the range of 13.71 to 14.05 % with mean value of 13.94 %. There was no change in quality parameters as increased the slope of orchards was observed. Total N in mango pulp was found in the range of 0.67 to 1.40 % with mean value of 0.89 %, total P was in the range of 0.05 to 0.13% with mean value of 0.085% and total K in the range of 0.41 to 0.67 % with mean value of 0.55 %. As increased the slope no change in NPK nutrients content were observed. The total Cu was found in the range of 0.67 to 1.81 μg/100gm pulp. It was increasing as the slope of orchards increased. Total Fe was found in the range of 1.28 to 3.85 μg/100gm pulp with mean value of 2.17 μg/100gm pulp. It was also increased as increased the slope of orchard. Total Zn was found in the range of 0.80 to 2.75 μg/100gm pulp with mean value of 1.37 μg/100gm pulp. No change was observed with increased the slope of orchard. The total Mn varied from 4.42 to 5.80 μg/100 gm pulps with mean value 4.97 μg/100gm pulp. No change was observed as increased the slope of hill. Total B found in the range of 0.014 to 0.035 μg/100gm pulp with mean value of 0.030 μg/100gm pulp. There was no change in nutrient content (B) as increased in slope of orchards in Alphanso mango. 5.6 Correlation of nutrient content and quality parameters of pulp with chemical properties of soils. The total N content in fruit pulp was correlated positively and significantly with soil available K2O (r=0.539*), exchangeable Ca2+ (r=0.398*), available Cu (r=0.372*), available Zn (r=0.501*) and available Mo (r=0.682*). Total P was found to correlate positively and significantly with available K2O (r = 0.434*) available Cu (r = 0.368*), available Fe (r = 0.519*) and available Mo (r = 0.363*). Total K had positive and significant relationship with pH ( r = 0.356*), organic carbon ( r = 0.361*), available S (r= 0.396*) and available B ( r = 0.401*).Total Cu was found to correlated positively and significantly with available K2O ( r = 0.590*), available S (r=0.447*), exchangeable Ca2+ ( r=0.408*) exchangeable Mg2+ (r=0.422*), available Fe (r=0.412*), available B (r=0.464*) and available Mo (r=0.506*).Total Fe showed positive and significant correlation with available B (r=0.437*).Total Zn was found to correlate positively and significantly with available N (r=418 *), available P2O5 (r=0.420*), available Zn (r=0.522*).Total Mn exhibited positive and significant correlation with available N (r=0.365*), available S (r=0.421*), available Mn (r=0.381*) and available boron (r=0.388*).Total B does not show any significant relation with chemical properties of soil. T.S.S. was found negative but significant relationship with available N (r = - 0.589*) and available P2O5 (r = - 0.597*). Acidity was noted positive and significantly correlated with pH (r = 0.432*) and organic carbon (r = 0.376*), reducing sugar was positively and significantly correlated with pH (r = 0.360*). Total sugar was noted positive and significant correlation with available N (r = 0.579*). Conclusion: - The present study was undertaken with a view to assess the physicochemical properties of lateritic soils from Ratnagiri and Sindhudurg districts mango orchards. The quality parameters and nutrients content of mango pulp collected from same orchards were also studied. The correlation of micronutrient with soil properties, fruit quality and nutrient content was also worked out. In the mechanical analysis of soil it was observed that the sand content varied from 44.24 to 56.33 %, silt content 12.88 to 19.82 % and clay content was 24.19 to 42.21 %. The bulk density varies from 1.20 to 1.29 Mg m-3, particle density 2.38 to 2.59 Mg m-3, MWHC found 63.77 to 68.72 %. The pH of lateritic soils ranged from 4.61 to 5.40, EC 0.022 to 0.047 dSm-1, organic carbon ranged from 0.84 to 1.38 %, available N 301.84 to 510.38 kg ha-1, available P205 3.86 to 7.00 kg ha-1, available K2O 227.30 to 259.73 kg ha-1, exchangeable Ca2+ 1.70 to 2.44 cmol (p+) kg-1, exchangeable Mg2+ 0.67 to 1.29 cmol (p+) kg-1 and available sulphur 0.78 to 2.57 ppm. The DTPA extracted micronutrient such as Zn, Cu, Fe and Mn revealed that the available Zn varied from 1.41 to 2.77 mg kg-1, available Cu 1.24 to 3.56 mg kg-1, available Fe 28.94 to 75.25 mg kg-1, available Mn 42.54 to 61.34 mg kg-1 .The available B found in range of 0.80 to 2.40 mg kg-1 and available Mo vary from 0.109 to 0.149 mg kg-1. The sand and silt content, water holding capacity, pH, electrical conductivity, exchangeable Ca2+ and Mg2+ and available nitrogen, K2O, Mn and Mo were found to be increased with increase in slope, whereas the clay content and available boron decreased with increase in slope. However, particle density, Bulk density, Organic carbon, available S, P2O5, Zn, Cu and Fe did not show any change in regards with the slope. The sand and silt content, water holding capacity, electrical conductivity organic carbon, exchangeable Ca2+ and Mg2+ and available nitrogen, P2O5, K2O, Zn, Cu, Mn, Fe, boron and Mo were found to decrease with increase in the depth of the soil, whereas the clay content, pH and available sulphur were found to increase with increase in the depth. However, the particle density and bulk density did not show any change in relation with the depth of the soil. A positive and significant correlation was found to be exhibited with available Fe and sand, silt, exchangeable Ca2+ and Mg2+ and available K2O Similarly available Mn and exchangeable Mg2+ and available P2O5; Available Cu and exchangeable Ca2+ and Mg2+ and available nitrogen and K2O in soil; Available Zn and available P2O5; Available B and available sulphur and available Mo exhibited positive and significant correlation with sand, silt and available K2O. However, negative and significant correlation was found between available Fe and clay, pH and organic carbon; available Mn and electrical conductivity; available Zn and pH, organic carbon and available sulphur; available boron and electrical conductivity and exchangeable Ca2+; and Available Mo exhibited negative and significant correlation with clay and pH. With regard to quality parameters and nutrients content of fruits, the TSS in the range of 16.25 to 20 0Brix, acidity 0.17 to 0.26%, total sugar was 12.73 to 14.48 %, reducing sugar was 4.38 to 4.99 % and nutrient content as total N 0.76 to 1.12 %, total P 0.07 to 0.11 % and total K 0.498 to 0.59 % however, the micronutrients like total Cu 0.73 to 1.02 μg/100gm pulp, total Fe 1.74 to 3.12 μg/100gm pulp, total Zn 0.98 to 2.09 μg/100gm pulp, total Mn 4.66 to 5.09 μg/100gm pulp and total B was 0.02 to 0.04 μg/100gm pulp of fruits was observed . No change in the quality parameters and nutrient content of mango pulp was found with increase in the slope of the orchards except for Cu and Fe, which showed an increase in nutrient content with increase in the slope. A positive and significant correlation was found between acidity and pH and organic carbon; reducing sugar and pH. Total sugars and available N; total N and available K2O, Exchangeable Ca2+, available Cu, Zn and Mo; total P and available K20, Cu Fe and Mo. total K and pH, organic carbon, available S and B; total Cu and available K2O, S, Fe, B, Mo and exchangeable Ca2+ and Mg2+; total Fe and available B; total Zn and available N, S, Mn and B whereas a Negative and significant correlation was found to exit between TSS and available N and K2O. However Total boron did not show any significant correlation with the chemical properties of the soil.ThesisItem Open Access Status And Distribution Of Micronutrients In Relation To The Properties Of Lateritic Soils Under Mango Orchards In South Konkan (Accession No. T03114)(Dr Balasaheb Sawant Konkan Krishi Vidyapeeth;Dapoli, 2001) Mahajan, Tarachand Shivaram; Mehta, V.B.ThesisItem Open Access Effect of graded levels of nitrogen and potassium on yield and quality of Watermelon in lateritic soils of Konkan(Department of Agricultural Chemistry and Soil Science, Dr. B. S. K. K. V., Dapoli, 2016-09) Bhosale, Ajinkya Ravindra; Dodake, S. B.A field experiment on “Effect of graded levels of nitrogen and potassium on yield and quality of watermelon in lateritic soils of Konkan” was conducted with Randomized Block Design comprising eleven treatments replicated thrice at Department of Agronomy, College of Agriculture Dapoli, Dr. B. S. Konkan Krishi Vidyapeeth, Dapoli, Dist. - Ratnagiri during Rabi 2014-2015. The effect of application of graded levels of N and K at 30 DAS, 60 DAS and at harvest with MOP and SOP as a source of potassium on growth, yield, quality parameters, nutrient content in plant and physico-chemical properties and nutrient availability in soil were studied. Application of NPK @ 150:50:100 kg ha-1 (T10) significantly increased the growth parameters viz., vine length, number of branches per vine, fruit girth, yield, quality parameters viz. TSS, reducing sugar, total sugar and anthocyanin , nutrient content and both of macro and micro nutrients over control and recommended dose of fertilizer. The data on soil fertility revealed that there was significant increase in soil pH, EC, organic carbon, available macro and DTPA extractable micronutrients in the soils, indicating build up of soil fertility with the combined application of graded levels of N and K fertilizers. Based on the yield response, quality improvement, nutrient content by plants and buildup of soil fertility, application of NPK @ 150:50:100 kg ha 1 i.e. treatment T10 with two split doses of N and K was found to be suitable for watermelon in lateritic soils of Konkan. Keeping in view the optimum net return with good B:C ratio, application of NPK @ 150:50:100 kg ha 1 was found to be useful for enhancing the watermelon production with increased profit.ThesisItem Open Access MICRONUTRIENT STATUS OF SOIL FROM MANGO ORCHARDS OF SINDHUDURG DISTRICT AND THEIR RELATIONSHIP WITH SOIL PROPERTIES(Department of Soil Science and Agricultural Chemistry, Dr. B. S. K. K. V., Dapoli, 2012-05) Pawar, Subodh Shyam; Nagrale, M. R.ThesisItem Open Access Micronutrient status of soil from mango orchards of Sindhudurg District and their relationship with soil propertis(Department of Soil Science and Chemistry, Dr. B. S. K. K. V., Dapoli, 2012-05) Pawar, Subodh Shyam; Nagrale, M. R.ThesisItem Open Access Micronutrient status of soil from Mango Orchards of Ratnagiri District and their relationship with soil Properties(Department of Soil Science and Chemistry, Dr. B. S. K. K. V., Dapoli, 2012-05) Joshi, Nandini Shyam; Vaidya, K. P.ThesisItem Open Access Effect of factory effluent (Saf Yeast) on growth, yield, nutrient uptake by rice and changes in soil properties(Department of Soil Science and Chemistry, Dr. B. S. K. K. V., Dapoli, 2012-05) Patil, Pramod Vivekanand; Dodake, S. B.ThesisItem Open Access Waste management through vermicomposting(Department of Soil Science and Chemistry, Dr. B. S. K. K. V., Dapoli, 2012-05) Shinde, Amol Laxman; Gokhale, N. B.