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首页> 外文期刊>Journal of the Indian Society of Soil Science >Effect of Long-term Use of Mineral Fertilizers, Lime and Farmyard Manure on the Crop Yield, Available Plant Nutrient and Heavy Metal Status in an Acidic Loam Soil
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Effect of Long-term Use of Mineral Fertilizers, Lime and Farmyard Manure on the Crop Yield, Available Plant Nutrient and Heavy Metal Status in an Acidic Loam Soil

机译：长期施用矿物肥料，石灰和农家肥对酸性壤土土壤作物产量，可用植物养分和重金属状况的影响

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摘要

The effect of balanced and imbalanced nutrient use on crop yield and availability of plant nutrients over the years is being studied in a Paleustalf of Ranchi under long-term permanent manurial trial. The present paper reports the long-term effect oforganic manures, fertilizers and lime on secondary and micronutrient status of an acid soil. Results revealed that the yield of maize under the treatments decreased in the order : NPK+lime > FYM+PK > NPK > NP > control > N. Lime application with NPK resulted in significantly higher uptake of P, Ca, Mg, S and B. Imbalanced use of N alone had a depressing effect on soil pH and Ca uptake by maize. The pH of acid soil (5.5) increased by 0.9 units with lime and fertilizer use, while it decreased in unlimed plots. Farmyard manure treated plots had a favourable influence on soil pH and organic carbon content. Application of N, NP and NPK fertilizers did not increase exchangeable Ca status of acid soil. The DTPA-extractable micronutrients in acid soils increased in N, NP and NPK treated plots while a decrease was recorded in limed plots. Liming decreased the DTPA-Cd in soil while FYM increased its content.
机译：多年来，在兰契古堡的长期永久性耕种试验中，研究了养分平衡使用和不平衡对作物产量和植物养分有效性的影响。本文报道了有机肥，肥料和石灰对酸性土壤次生和微量养分状况的长期影响。结果表明，处理下玉米的产量按以下顺序降低：NPK +石灰> FYM + PK> NPK> NP>对照> N。施用NPK石灰可显着提高对P，Ca，Mg，S和B的吸收。 。单独施用氮素对玉米的土壤pH和钙吸收具有抑制作用。随着石灰和肥料的使用，酸性土壤的pH值（5.5）升高了0.9个单位，而在无石灰的土壤中，pH值却下降了。农家肥处理过的地块对土壤pH和有机碳含量具有有利影响。氮磷钾和氮磷钾肥料的施用并没有增加酸性土壤的可交换钙态。在N，NP和NPK处理的地块中，酸性土壤中DTPA可提取的微量营养素增加，而在石灰土中记录到减少。石灰降低了土壤中的DTPA-Cd，而FYM增加了其含量。

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