工程排水对低产田肥力及作物产量影响的研究——以名山县《川中项目》效益定位监测结果为例

STUDIES OF EFFECT OF ENGINEERING DRAINAGE ON FERTILITY OF LOW PRODUCTIVE SOIL AND CROP YIELD

工程排水改善了土壤生态环境,土壤理化性状得到明显改良,水、肥、气、热诸肥力因素日趋协调,肥力水平显著提高,收到了形质兼改的明显效果。生产经济效益十分显著。

Engineering drainage has made improvement in the ecological environment of soils. The physicochemical properties of soils are apparently amelioratde. The water, fertility,aeration and heat factors of soils have been getting coordinate day by day. The level of soil fertility is notablely increased. The striking improvement of both morphology and property of soil is obtained. The productive and economic profit are obvious.