木薯不同地膜覆盖种植对土壤肥力的影响

Effect of Different Plastic Mulching Cultivation of Cassava on Soil Fertility

以木薯品种新选048为试材,进行不同地膜覆盖方式对土壤理化性状的影响试验,探讨木薯最佳的地膜覆盖方式。结果表明,地膜覆盖的土壤碱解氮、速效磷、速效钾、土壤有机质含量以及产量都比对照高;不同盖膜方式对土壤肥力的影响效果不同,盖黑色膜的效果最好,其次是盖透明薄膜。可见,木薯地膜覆盖栽培以盖黑色薄膜方式最佳,对改善土壤理化性状,促进木薯生长,提高木薯产量最有利。

The effect of different mulching methods on the physical and chemical properties of the soil was tested with the new cassava cultivar new selection 048. The best way of mulching cassava was discussed. The results showed that the alkali-hydrolyzable nitrogen, available phosphorus, available potassium and soil organic matter content were higher than those of the control. The effect of different mulch on soil fertility was different, the effect of the black film was best, followed by the cover of the transparent film. So, it could be seen that the cultivation of cassava film mulching took to cover the black film as the best way, which was most favorable to improve the physical and chemical properties of soil, and promote cassava growth, improve the yield of cassava.