Browsing by Author "Kaur, Navneet"
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ThesisItem Open Access Effect of seed priming, nutrient management and tillage practices on productivity of rainfed maize-wheat system(CSK HPKV, Palampur, 2022-12-24) Kaur, Navneet; Kumar, AnilA field experiment was conducted from kharif 2020 to rabi 2021-2022 at the Irrigation and Water Management Farm of Department of Soil Science, CSKHPKV, Palampur. (H.P.) to study the effect of seed priming, nutrient management and tillage practices on productivity of rainfed maize-wheat cropping system. The experiment was laid out in randomized block design with three factors viz., tillage practices, seed priming and nutrient management practices and was replicated thrice. The treatments comprised of three tillage practices [Conventional tillage (CT), CT + mulch (CT+M) and Zero tillage+ mulch (ZT+M)]; two seed priming [Hydropriming and micronutrient priming (0.5%Zn and 0.1%Mn)] and two nutrient management practices [recommended dose of fertilizers (RDF) (120:60:40 in maize and 80:40:40 in wheat) and Integrated nutrient management(50% N through FYM + 50% N and rest of P and K through inorganic sources)]. An additional treatment of control (CT, No priming, RDF) was also kept for general comparison of results. The soil of the experimental site was silty clay loam in texture, acidic in reaction, medium in organic carbon, available phosphorus and potassium and low in available nitrogen. Results revealed that significantly higher growth and yield attributes, yield, nutrient content and uptake, system and water productivity and economic returns were obtained with conventional tillage + mulch followed by zero tillage + mulch amongst tillage practices, integrated nutrient management over RDF among nutrient management, whereas seed priming methods did not differ with respect to different parameters. As compared to initial status soil physical and chemical properties viz. bulk density, porosity, hydraulic conductivity, organic carbon, available nitrogen, phosphorus and potassium content at end of two years cropping cycle improved significantly under conventional tillage + mulch and integrated nutrient management practice followed by zero tillage + mulch and integrated nutrient management system. For obtaining higher crop and water productivity as well as economic returns in maize-wheat cropping system under rainfed condition, conventional tillage + mulch practice with integrated nutrient management and seed priming should be adopted.ThesisItem Open Access Effects of seasonal variations on transition period metabolic status and post parturient health in crossbred cattle(Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, 2017) Kaur, Navneet; Singh, Sikh TejinderThe present study was aimed to assess metabolic and oxidative status of periparturient crossbred cattle (HF×Sahiwal; n=30) in the tropical environment in relation to season (summer: THI>72; winter: THI?72), animal genetics (GEN1: 75% HF; GEN2: 75-82.5% HF), stages of transition viz. far off dry (FOD: >10 days following dry off and not < 30 days prior to calving), close up dry (CUD: 3-21 days prior to calving), fresh 1 (F1: 7-10 days in milk) and fresh 2 (F2: 30-45 days in milk), post-partum disease incidence, calf birth weight, colostrum quality and milk composition. There was significant effect of season ( 2=2.937, p<0.05) and animal genetics ( 2=8.523, p<0.01) on post-partum disease incidence, which was higher in summer and GEN2. Metabolic profile (serum NEFA, BHBA, Pi, Mg, creatinine), oxidative stress (erythrocytic LPO, GSH), rectal temperature and respiration rate were significantly higher and serum Ca, glucose and body condition score were significantly lower in the summer calving cattle. The level of exotic inheritance significantly influenced the energy metabolism (NEFA, BHBA). The metabolic health and oxidative status of cattle differed significantly during various stages of the transition. Higher NEFA, BHBA, LPO, creatinine and lower BCS, glucose and albumin in pre-partum period; and higher NEFA, BHBA, LPO and lower BCS, back fat thickness and calcium in post-partum period were associated with higher incidence of post-partum metabolic diseases. Higher concentrations of BHBA, BUN, creatinine and lower glucose, total proteins and albumin in the pre-partum period were associated with the birth of underweight calves (<24 kg). Colostral total immunoglobulins concentration was significantly higher in winter while the somatic cell count was significantly higher in summer. There was no effect of season on milk fat, while SNF, protein and lactose contents were significantly higher during winter season.ThesisItem Open Access Evaluation of paddy straw as an alternate litter material for broiler chicks(Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, 2009) Kaur, Navneet; Dr. S.S. NagraBurning of agricultural residues especially paddy straw is now recognized as a major source of environmental concern in India. Burning of huge quantities of paddy straw annually leads to emission of obnoxious gases thus causing adverse impacts on, health of human, animal and bird population. This practice can be discouraged through its utilization as alternate litter material to commonly used paddy husk which is now available at costly prices because of its use in different industries thus raising the cost of broiler production. This was evaluated through three experiments during summer, winter and spring seasons conducted on broiler chicks. Broiler chicks (n=144) were distributed into three treatment groups, each having 4 replicates and reared up to 42 days of age. Paddy husk (PH), unchopped paddy straw (UPS) and chopped paddy straw (CPS) were used as different litter materials. The litter type had no significant effect on body weight, weight gain, FCR, PER and EER evisceration rates and cut-up parts of carcasses. Mortality was little higher in paddy straw groups which also contained more moisture and had higher caking/compaction leading to soiled and unsanitary breast feathers. Bedding type had no influence on bacterial/parasitic load and manorial value of the litter. It was concluded that combination of paddy straw and paddy husk (PH) makes a good bedding material for broiler chicks.ThesisItem Open Access EXPERIMENTAL STUDIES OF TOXICOLOGICAL PROFILES, TOXICOKINETICS, CYTOTOXICITY AND ANTIDOTAL THERAPY OF NITRATE/NITRITE TOXICITY IN GOATS(Kolkata, 1999) Kaur, Navneet; Pramanik, Dr. A. K.; DAS, Dr. S. N.; ChakrabortI, Dr. A.; Basak, Dr. D. K.; Mondal, Dr. T. K.ThesisItem Open Access SITE-SPECIFIC NUTRIENT MANAGEMENT IN SOYBEAN UNDER MID-HILL CONDITIONS OF HIMACHAL PRADESH(CSKHPKV, Palampur, 2019-06) Kaur, Navneet; Singh, JanardanA field experiment was conducted during the rainy (kharif) season of 2018 at CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur, to study the effect of sitespecific nutrient management on growth, yield and profitability of soybean (Glycine max L). The experiment was laid out in randomized block design comprising of seven treatments [T1 - N43P43K50 (SSNM), T2 - N43P43K0 (T1-K omission), T3 - N43P0K50 (T1- P omission), T4 - N0P43K50 (T1- N omission), T5 - N20P60K40 (RDF), T6 - FYM@5t/ha (Farmer‟s Practice) and T7 -N0P0K0 (control)]. Experimental site was silty clay loam in texture, acidic in reaction, low in available nitrogen, and medium in available phosphorus and potassium. Significantly higher plant height, dry matter accumulation, absolute growth rate, relative growth rate, crop growth rate and dry matter efficiency were recorded in T1 which was at par with T5 and T6. The highest seed yield (1988kg/ha), gross return (Rs 82661/ha) and net return (Rs 45864/ha), benefit cost ratio (2.25) and profitability (Rs 367/ha/day) was recorded in T1. Omission of nutrients significantly reduced yield and profitability of soybean. The treatment, N43P43K50 proved to be the best treatment for enhancing yield and profitability of soybean under mid-hill conditions of Himachal Pradesh.