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首页> 外文会议>International Soil Conservation Organization Conference vol.3; 20020526-31; Beijing(CN) >Crop Residue Management to Conserve Soil, Water and Nutrients for Sustainable Production in the Vertisols of Semi-Arid Tropics of South India
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Crop Residue Management to Conserve Soil, Water and Nutrients for Sustainable Production in the Vertisols of Semi-Arid Tropics of South India

机译：作物残留管理，以保护印度南部半干旱热带地区的Vertisols中的土壤，水和养分，以实现可持续生产

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Runoff and soil loss was reduced to minimum in sorghum+legume incorporated into the soil and sorghum + legume grown for grain purpose. Maximum runoff and soil loss was observed under control (sorghum) with no disturbance to soil. Higher soil moisture in top 45 cm soil profile was observed in plots under sorghum + legume incorporated into the soil. Highest sorghum grain (2,073 kg • ha~(-1)) was recorded in sorghum + legume incorporated into the soil followed by sorghum + legume used as mulch (1,870 kg • ha~(-1)) was as a result of higher values of yield components in sorghum. The treatment where sorghum + legume grown for seed purpose recorded significantly higher sorghum grain equivalent (2,696) over rest of the treatments except sorghum + legume incorporated into the soil. At the end of four seasons, soil analysis indicated that organic carbon, available N, P, K and mean weight diameter of aggregates was higher in treatments where legume was grown or incorporated into the soil with sorghum compared to rest of the treatments. Growing up of legume with sorghum for grain purpose or incorporated into the soil improved the soil physico-chemical properties, crop growth and yield and reduced runoff and soil loss.
机译：高粱+豆科植物和种植用于谷物目的的高粱+豆科植物的径流和土壤流失降至最低。在对照（高粱）下未观察到最大的径流和土壤流失。在掺入土壤的高粱+豆科植物下的地块中，在最高45 cm的土壤剖面中观察到较高的土壤水分。最高的高粱籽粒（2,073 kg•ha〜（-1））记录在土壤中的高粱+豆类中，其次是高粱+豆类覆盖物（1,870 kg•ha〜（-1）），这是因为其值较高高粱中的产量成分。以高粱+豆科植物为种子生长的处理记录的高粱籽粒当量（2,696）显着高于其余处理（高粱+豆科植物掺入土壤中）。在四个季节结束时，土壤分析表明，在豆科植物生长或掺入高粱的土壤中，有机碳，有效氮，磷，钾和团聚体的平均重量直径高于其余处理。将豆类与高粱种植在一起种植谷物或将其掺入土壤可改善土壤理化特性，作物生长和产量，并减少径流和土壤流失。

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