通过在紫色土坡耕地上进行横坡垄作，观测了不同坡度坡耕地的水土流失及作物产量状况。
The characteristics of soil and water loss and crop yield by cross ridge in purple soil of different sloping farmland were studied.
通过在紫色土坡耕地上进行横坡垄作，观测了不同坡度坡耕地的水土流失及作物产量状况。
The characteristics of soil and water loss and crop yield by cross ridge in purple soil of different sloping farmland were studied.
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