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Effect of Organic Manure and Chemical Amendments on Soil Properties and Crop Yield on a Salt Affected Entisol
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2005
Year
EngineeringSoil AmeliorationSoil SalinityField ExperimentAgricultural EconomicsSoil ManagementLand ApplicationHaji Mora VillageGreen ManureSustainable AgriculturePublic HealthSoil FertilitySoil ScienceChemical AmendmentsSoilless FarmingEnvironmental EngineeringCrop ProtectionEnvironmental RemediationOrganic ManureFarming SystemsSalt Affected EntisolNutrient Management
A field experiment was conducted for two consecutive years in a farmer's field at Haji Mora Village, Dera Ismail Khan(D.I. Khan) in the Northwest Frontier Province (NWFP) of Pakistan to compare various management practices, such as the effect of various organic manures and gypsum in a rice-wheat cropping system on a saline-sodic Entisol (Zindani soil series). The treatments consisted of 1) a control (rice-wheat), 2) gypsum, 3) farmyard manure (FYM), 4) berseem(Trifolium alexandrinum L.) as green manure (GM), and 5) dhancha (Sesbania sp.) as GM. All treatments increased yields of both rice and wheat significantly (P ＜ 0.01) over the control, with the green manure treatments proving more economical than the others; while they decreased pH, electrical conductivity (EC), and sodium adsorption ratio (SAR) of the soil. Saturation percentage and available water of the soil were raised for all treatments due to an increase in organic matter content of the soil.