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ThesisItem Open Access Effect of phosphorus and sulphur fertilization on cowpea(College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 2003) Yadav, Anil Kumar; Yadav, H.CThesisItem Open Access Quality parameters of under ground waters of Bhuna block in district FaTheabad of Haryana(College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 2003) Singh, Raghbir; Sharma, J. CThesisItem Open Access Characterization of Ground Water Quality of Safidon Block in District Jind, Haryana(College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 2003) Kumar, Mukesh; Dahiya, S. SThesisItem Open Access Effect of Salinity and Nitrogen Levels on Yield and Nutrient Uptake of Wheat Cultivars(College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 2003) Sharma, Rakesh; Singh, DalelThesisItem Open Access Effect of nitrogen and phosphorus application on growth, flowering and yield of Lili um Cv. Chianti(Department of Soil Science Chaudhary Charan Singh Haryana Agricultural University Hisar, 2003) Ramprakash; Dahiya, Surat SinghThesisItem Open Access The effect of potassium application on yield and juice quality of ratoon crop of sugarcane(College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 2003) Sangwan, Anurag; Kumar, VijayThesisItem Open Access Pedogenic Characterization of Soils of Northern Part of Faridabad District, Haryana(College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 2003) Singh, Japinder; Batra MLThesisItem Open Access Agrobacterium-Mediated Transfer of the Stress Tolerant Mothbean Pyrroline-5-Garboxylate Synthetase (P5CS-129A) Gene in basmati Rice(College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 2003) Singh, Monika; Chowdhury, V. K.ThesisItem Open Access Phosphorus and potassium forms in soil as affected by their long term use under different cropping sequences(CCSHAU, 2005) MANAS BUL KEZEKIA; NARENDERA SINGHThe present study was conducted on a long term field experiment basis which is in progress since July 1979 at Soil Research Farm of Chaudhary Charan Singh, Haryana Agricultural University, Hisar to study the effect of Phosphours and Potassium on depletion of potassium under bajra-wheat jowar-wheat and -123- moongbean-wheat crop rotations. Soil samples from two depths 0-15 and 15-30cm were collected from the field of the study, grain and straw yields of crops were recorded at harvest, Jowar fodder was harvested at 70 days after sowing and samples were analysed in the laboratory for N, P and K contents. Soil samples from each rotation were analysed for different forms of Phosphorus and Potassium. Application of 60 kg P2O5/ha significantly increased the different P fractions i.e. available, inorganic, organic and total P over their no P application. Potassium treatment also increased these fractions over their control plots. Application of 60 kg P2O5/ha significantly decreased all the K forms viz. water soluble, exchangeable, non-exchangeable, lattice and total K in both soil depths as compared with plots received no P application. Potassium applications, in another hand, increased the contents of different K fractions as compared with plots without K application. Maximum decreased in K fractions was recorded under P0K0 followed by P60K0 plots. 60 kg P2O5/ha treatment improved significantly the grain and straw yields of both kharif (bajra, jowar and moongbean) and rabi (wheat) crops over no P treatment. Potassium fertilization, in general, increased grain and straw yields of both the crop seasons compared with the control plots. Total annual uptake of nitrogen, phosphorus and potassium were improved significantly by phosphorus and potassium fertilization and higher uptake was found in bajra-wheat rotation than in jowar-wheat and moongbean-wheat rotation.