ABSTRACT The application of inorganic fertilizer in rice field is a foremost maneuver to acquire higher yield but effects properties of acidic sandy soil. An alternative strategy is to blend inorganic fertilizer with soil binding materials like magnesium sulfate (0.5 ton/ha), fresh neem (Azadirachata indica) (1 ton/ha) leaves, used tea (Camellia sinensis var assamica) (1 ton/ha) leaves, fresh karanj (Pongamia glabra) (1 ton/ha) leaves, and assess their prospects on soil properties and yield. The results of present investigation showed that the blended amendments exhibited improvement in iron, soil moisture, volumetric water content and bulk density. Inorganic fertilizer blended with karanj showed 4.12% increase in available phosphorus, 20.33% increase in available potassium, and 18.81% increase in zinc compared to inorganic fertilizer alone. Significant correlation between electrical potential and pH (−0.95), soil moisture and volumetric water content (0.93), soil temperature and copper (−0.90), bulk density and manganese (−0.88), and soil temperature and manganese (−0.88) were observed. Also 36.39% of variation in soil properties depended on electrical conductance, available phosphorus, iron, copper, manganese, soil temperature, and bulk density. However available phosphorus contributed 13.70% variation in yield.

中文翻译：

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夏稻田改良剂应用前景：通过无机混合改良剂保持土壤特性

摘要 稻田施用无机肥是获得高产但影响酸性沙土特性的首要措施。另一种策略是将无机肥料与土壤结合材料混合，如硫酸镁（0.5 吨/公顷）、新鲜印楝（Azadirachata indica）（1 吨/公顷）叶、旧茶（Camellia sinensis var assamica）（1 吨/公顷）叶、新鲜 karanj (Pongamia glabra) (1 吨/公顷) 叶，并评估它们对土壤特性和产量的前景。目前的调查结果表明，混合改良剂在铁、土壤水分、体积含水量和堆积密度方面表现出改善。与单独使用无机肥料相比，与 karanj 混合的无机肥料显示有效磷增加 4.12%，有效钾增加 20.33%，锌增加 18.81%。电位与 pH (-0.95)、土壤水分与体积含水量 (0.93)、土壤温度与铜 (-0.90)、容重与锰 (-0.88) 以及土壤温度与锰 (-0.88) 之间的显着相关性为观察到的。此外，36.39% 的土壤特性变化取决于电导率、有效磷、铁、铜、锰、土壤温度和容重。然而，有效磷对产量的影响为 13.70%。土壤温度和容重。然而，有效磷对产量的影响为 13.70%。土壤温度和容重。然而，有效磷对产量的影响为 13.70%。