整地工艺与条件对水田物理性质的影响

The effect of preparation process and condition on soil physical properties in paddy.

针对浙江省水田地区常用的整地工艺方案。研究了在不同作业条件下,水田犁耕和旋耕对土壤物理性质的影响。在排水条件下,犁耕和旋耕对土壤物理性质诸指标的影响无显著差异,但旋耕相对犁耕有较好的耕作质量。在浸水条件下,旋耕相对犁耕而言,对土壤物理性质诸指标有不良影响,且达统计显著差异。

This paper studied the effects of different preparation processes and conditions for the operation on soil physical properties in paddy. When the operation was conducted on the drained condition,the effects of two kinds of preparation processes on soil physical properties were not different statistically. But when the operation was conducted on the condition of field irrigated with a 3-4 cm water layer before being prepared,the effects on soil physical properties by rotary tillage were worse than those by ploughing tillage 籥nd a significant difference was made.