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Now showing 1 - 9 of 2033
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    ThesisItemOpen Access
    DIAGNOSTIC AND THERAPEUTIC STUDIES ON INTESTINAL OBSTRUCTION IN CALVES
    (Palampur, 2006-04-25) KUMAR, ADARSH; Kanwar, M.S.
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    ThesisItemOpen Access
    INTEGRATED MANAGEMENT OF BACTERIAL WILT OF TOMATO
    (Palampur, 2004-05-28) AGGARWAL, PREETI; Sood, A.K.
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    ThesisItemOpen Access
    INFLUENCE OF ZINC AND BORON ON WHEAT PRODUCTIVITY AND POTASSIUM USE EFFICIENCY IN AN ACID ALFISOL
    (CSHHPKV Palampur, 2012-12-01) NEHA; Sharma, R.P.
    The present investigation was carried out at experimental farm of Department of Soil Science, College of Agriculture, CSK HPKV, Palampur with sixteen treatments consisting of four levels of K (0, 50,100 and150% of recommended dose), two levels of Zn (0 and 10 kg ha-1 ) and two levels of B (0 and 1 kg ha-1 ) in factorial randomized block design. Application of K @ 50, 100 and 150 per cent of recommended dose increased plant height, dry matter accumulation, total and effective tillers per metre row length, grains per ear and test weight significantly. Similarly, application of Zn (10 kg ha-1 ) and B(1 kg ha-1 ) influenced these growth and yield attributes of wheat significantly. Highest grain (42.52q ha-1 ) and straw (66.80q ha-1 ) yield of wheat was recorded under 150 per cent of recommended dose of K. Application of 150 percent of recommended dose of K increased grain and straw yield by 43.7 and 46.9 per cent over no K, respectively. Application of Zn (10 kg ha-1 ) increased grain and straw yield by 10.9 and 9.8 per cent over no Zn, respectively. The increase in grain and straw yield with the application of B (1 kg ha-1 ) was 5.6 and 6.3 per cent, respectively. Application of K increased N, P, K, Mn, Fe, Cu and B contents significantly at maximum tillering and harvesting. Application of Zn increased Zn and B contents significantly at both the stages but the contents of Fe, Mn and Cu decreased. However, B increased the contents of Zn and B only at maximum tillering stage and Zn, Mn and B at harvesting (grain and straw). Almost similar effects of K, Zn and B application on total nutrient uptake were observed. Application of Zn increased partial factor productivity, physiological efficiency, agronomic efficiency and apparent recovery. B application increased partial factor productivity and apparent recovery only. Application of K, Zn and B increased available K, DTPA extractable Zn and available B content significantly, respectively.
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    ThesisItemOpen Access
    ASSESSMENT OF SOIL QUALITY UNDER PREVALENT CROPPING SYSTEMS IN DIFFERENT AGRO-CLIMATIC ZONES OF HIMACHAL PRADESH.
    (CSKHPKV, Palampur, 15-07-19) Ravinder Kumar; Paliyal, S.S
    The present investigation entitled “Assessment of soil quality under prevalent cropping systems in different agro-climatic zones of Himachal Pradesh” was carried out with a view to ascertain the physical, chemical and biological properties of soils under prevalent cropping systems viz., maize- wheat, rice- wheat and vegetable based in different agro climatic zones of Himachal Pradesh. On the basis of detailed survey and random sampling, representative 180 soil samples from two depths i.e. 0-0.15 m and 0.15-0.30 m were collected. Soil samples were analyzed for their physical, chemical and biological properties and key indicators were identified using multivariate statistical analysis for computing the soil quality index. Wide variations in the soil health indicators were observed among different sites. The soil texture under various sites selected in the present study varied from sandy loam to sandy clay loam, however sandy loam was observed as the most dominant texture both under cereal and vegetable based cropping systems in all the four zones of the state. Soil reaction across various sites under present study was slightly acidic to neutral in Zone I-III but neutral to slightly alkaline in zone IV. Higher salt accumulation (EC) was observed under vegetable based cropping systems as compared to those of cereal based. Organic carbon was medium to high and available N, P and K contents were in low to medium category in all the four zones. Organic carbon and available and total N P and K contents were higher under the vegetable based cropping systems than cereal based. DTPA Fe, Mn, Zn and Cu were observed sufficient, whereas total Fe, Mn, Zn and Cu were recorded higher in cereal and vegetable based cropping system in all the zones. Microbial biomass carbon, microbial biomass nitrogen, potentially mineralizable nitrogen and soil respiration were higher at low hill subtropical zone in all cropping systems as compared to those in Zone-II, III and IV. The mean soil quality index (SQI) values for rice- wheat, maize- wheat and vegetable based cropping systems were 0.74, 0.74 and 0.81; 0.85, 0.77 and 0.81; 0.92, 0.68 and 0.73; 0.72, 0.71 and 0.78 in zone-1, II, III and IV, respectively. Overall higher soil quality index was observed under vegetable based cropping system as compared to the cereal based cropping systems.
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    ThesisItemOpen Access
    Integrated nitrogen management in maize-potato system in an acid Alfisol
    (CSKHPKV, Palampur, 07-01-19) Butail, Nagender Pal; Dixit, S. P.
    The present investigation was carried out at the experimental farm of Department of Soil Science, College of Agriculture, CSK HPKV, Palampur in randomized block design consisting of ten treatments combinations viz. control, 100 per cent mineral N, farmers’ practice, 100% mineral N +FYM (recommended), 25 and 50 per cent substitution of N through FYM, vermicompost and poultry manure, respectively. The experiment was conducted in maize-potato system for two years i.e. from kharif, 2015 to rabi, 2016-17. The soil of the experimental field was silty clay loam in texture, acidic in reaction (pH 5.31), medium in organic carbon (6.58 g kg-1) with 234, 21.4 and 185 kg ha-1 of available N, P and K, respectively. The micronutrient cations viz. Fe, Mn, Zn and Cu in the soil were 21.8, 19.1, 0.93 and 0.48 mg kg-1, respectively. Surface (0-0.15 m) soil samples taken at the harvest of each crop were analysed for water holding capacity, pH, organic carbon (OC), cation exchange capacity (CEC), available N, P, K and micronutrient cations viz. Fe, Mn, Zn and Cu. Microbiological properties i.e. microbial biomass carbon, microbial biomass nitrogen and soil respiration were also determined at harvest of potato, rabi 2015-16 and 2016-17. While different fractions of N were determined at the end of experimentation i.e. at the harvest of second crop of potato, rabi 2016-17. Plant samples of both the crops at the harvest of each crop, were analyzed for total N, P, K and micronutrient cations content and their respective uptake by both the crops were worked out. The present study revealed that integrated use of chemical fertilizer and different organic manures improved the soil physical, chemical as well as biological properties with highest value in the treatment where 100 % N was applied through chemical fertilizes +FYM at recommended rates. Highest yield of both the crops was recorded in same treatment and was significantly superior to the rest of the treatments followed by treatment where 50% N was substituted with poultry manure. Application of 50 per cent N through chemical fertilizers + 50 per cent N through poultry manure improved the nitrogen use efficiency as compared to the rest of the treatments i.e. 56.2 % at the end of experimentation. The contribution of different organic as well as inorganic forms of nitrogen viz., hydrolysable ammonical-N, amino acid-N, serine+threonine-N, hexosamine-N, unidentified-N, non hydrolysable-N, ammonical-N and nitrate-N, towards the total-N was 20, 23, 8, 7, 17, 15, 7 and 3 %, respectively. Different fractions of nitrogen were also found to be positively and significantly correlated with one another except non hydrolysable-N. Application of 50 per cent N through chemical fertilizers + 50 per cent N through poultry manure to both the crops recorded highest net returns as well as highest benefit cost ratio. It is concluded that the application of 100 per cent N through chemical fertilizers + FYM at recommended rates proved best treatment in terms of productivity, nutrients uptake and soil properties while 50 per cent N substitution through poultry manure proved to be the best treatment in terms of profitability and nitrogen use efficiency.
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    ThesisItemOpen Access
    EFFECT OF HERBAL BIOENHANCERS ON PHARMACOKINETICS OF ENROFLOXACIN IN CALVES
    (CSKHPKV, Palampur, 2008) Sharma, Amit Kumar; Varshneya, C.
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    ThesisItemOpen Access
    INDIVIDUAL AND COMBINED EFFECTS OF FUMONISIN B1 AND OCHRATOXIN A ON THE LIVER OF JAPANESE QUAIL
    (CSKHPKV, Palampur, 2010-07-14) Thakur, Priyanka; Gupta, Vipin K.
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    ThesisItemOpen Access
    INDIVIDUAL AND COMBINED EFFECTS OF FUMONISIN B1 AND OCHRATOXIN A ON THE KIDNEYS OF JAPANESE QUAIL
    (CSKHPKV, Palampur, 2010) Khan, Manzoor Ahmad; Asrani, R.K.
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    ThesisItemOpen Access