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Chaudhary Sarwan Kumar Himachal Pradesh Agriculture University, Palampur

Himachal Pradesh Krishi Vishvavidyalaya (renamed as Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya in June, 2001) was established on 1st November, 1978.The College of Agriculture (established in May, 1966) formed the nucleus of the new farm University. It is ICAR accredited and ISO 9001:2015 certified institution. The Indian Council of Agricultural Research has ranked this University at eleventh place among all farm universities of the country. The University has been given the mandate for making provision for imparting education in agriculture and other allied branches of learning, furthering the advancement of learning and prosecution of research and undertaking extension of such sciences, especially to the rural people of Himachal Pradesh. Over the years, this University has contributed significantly in transforming the farm scenario of Himachal Pradesh. It has developed human resources, varieties and technologies and transferred these to farming community enabling the State to receive the “Krishikarman award” of Govt. of India four times in row for food grain production among small states of the country. Today, the State has earned its name for hill agricultural diversification and the farming community has imposed its faith in the University.

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Subject: Soil Sciences × End date: 2019 × Start date: 2019 × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    SULPHUR DYNAMICS AND ITS CRITICAL LIMITS FOR FRENCH BEAN AND CAULIFLOWER IN ACIDIC SOILS OF HIMACHAL PRADESH
    (CSKHPKV. Palampur, 2019-07-30) GOURAV; Sankhyan, N. K.
    Sulphur is best known for its essentiality and vitality in crop production, but due to its widespread deficiency, it is imperative to study its transformations in acidic soils. In the present investigation, 500 soil samples were collected randomly from cultivated acidic soils of Himachal Pradesh, as identified during previous surveys conducted by Department of Soil Science, CSK HPKV Palampur. Processed soil samples were analyzed for pH, soil texture and available sulphur. Five soil profiles were also selected randomly to study the vertical distribution of S. The transformation of sulphur with externally added elemental sulphur was studied in twenty one incubated soil samples, which varied in pH and texture. Further, 10 locations were selectedthat varied in pH, clay content and available S to study the response and to establish critical limits of S for french bean and cauliflower; furthermore the detailed experiment was conductedin pots under glasshouse. In study area, textural class, pH (1:2.5) and available sulphur ranged from loamy sand to clay, 4.23 to 7.00 (extremely acidic to neutral) and 11 to 65 kg ha-1 (deficient to sufficient) respectively. Around 35 per cent of the soil samples were found deficient in available sulphur. Available S exhibited a significant positive correlation with clay and silt, whereas significantnegative correlation was found with sand and pH. All the S fractions (sulphate-S, water soluble-S, heat soluble-S, organic-S and total-S) increased with incubation of soil samples and added elemental S. The highest content of these S fractions were obtained with the application of 80 kg S ha-1. Sole incubation of soil for thirty days without the addition of S, increased all the S fractions except organic-S. Contents of all the S fractions in soils increased with increase in clay and decreased with increase in pH of soil. In soil profiles study, all the S fractions decreased with increase in depth and highest contents of all the S fractions were found in surface layer. Sulphur fractions followed the order as total-S>organic-S>heat soluble-S>sulphate-S>water soluble-S. French bean and cauliflower responded significantly to the S application. Highest yield and yield attributes were obtained with the application of 40 kg S ha-1 in both the crops. However, the green pod yield in french bean at 30 kg S ha-1 was statistically at par with 40 kg S ha-1. Critical limits for french bean and cauliflower in soil were found to be 9.5 mg kg-1 and 10.5 mg kg-1, respectively. Whereas, the critical limits for french bean and cauliflower in plantswere found to be 0.103 per cent and 0.337 per cent sulphur, respectively
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    ThesisItemOpen Access
    SOIL QUALITY INDEXING OF AN ACID ALFISOL UNDER RICE-WHEAT CROPPING SYSTEM BASED ON CONTINUOUS INTEGRATED PLANT NUTRIENT SUPPLY IN MID-HILLS OF HIMACHAL PRADESH
    (CSKHPKV. Palampur, 2019-01-07) AJAY, KUMAR; Paliyal, S. S.
    Present investigation was carried out in a long-term integrated nutrient management experiment with rice–wheat cropping sequence initiated in kharif 1991 at Padhiyarkhar research farm of College of Agriculture, Palampur, District Kangra. Twelve treatments comprising of T1- Control (no fertilizer, no manure), T2-50% NPK to both rice and wheat, T3-50% NPK to rice and 100% NPK to wheat, T4-75% NPK to both rice and wheat,T5-100% NPK to both rice and wheat, T6-50% NPK + 50% N through FYM to rice and 100% NPK to wheat, T7-75% NPK + 25% N (FYM) to rice and 75% NPK to wheat, T8-50% NPK + 50% N through wheat straw to rice and 100% NPK to wheat, T9-75% NPK + 25% N (wheat straw) to rice and 75% NPK to wheat, T10- 50% NPK + 50% N through Dhaincha green manure to rice and 100% NPK to wheat, T11-75% NPK + 25% N (Dhaincha green manure) to rice and 75% NPK to wheat and T12-Farmers‟ Practice (40% NPK + FYM @ 5 t ha-1 to both the crops) were evaluated in a randomized block design with four replications. Surface (0–0.15 m) and sub-surface (0.15–0.30 m) soil samples were collected after the harvest of wheat crop during 2016-17 and analyzed for various soil physical, chemical and biological properties. Integrated use of organics and inorganics has sustained the crop productivity and significantly improved the soil properties. Sustainable yield index (SYI) was found lowest (0.33) in the treatment where no fertilizer or manure was applied (T1) and highest (0.66) where 50 per cent NPK through fertilizers and 50 per cent N through FYM to rice was followed by 100 per cent NPK to wheat (T6). Available nitrogen and potassium declined over the years in all the treatments whereas significant build-up in available phosphorus was observed through integrated use of organics and fertilizers over the respective initial values. Saturated hydraulic conductivity, pH, organic carbon, labile carbon, microbial biomass nitrogen and dehydrogenase activity were found to be the key minimum data set (MDS) indicators in this study. Multiple regression evaluated the efficacy of MDS taking SYI as goal (r2 =0.91 for surface and 0.88 for sub-surface soil). The soil quality index (SQI) was calculated by using weighting factors derived from principal component analysis for each scored MDS variable. The highest SQI values (2.81 for surface and 2.78 for sub-surface soil) were found in T6 followed by T10 (2.41 for surface and 2.56 for sub-surface soil) and the lowest (1.16 for surface and 1.23 for sub-surface soil) in T1. Application of 50% NPK through chemical fertilizers + 50% N through FYM in rice followed by 100% NPK in wheat (T6) was found to be better than other treatments in sustaining crop productivity as well as maintaining soil quality under rice-wheat cropping sequence.