论文部分内容阅读
在中国科学院红壤生态实验站的猕猴桃园上进行秸秆覆盖改进方法的试验.结果表明,旱地红壤覆盖秸秆后再覆±5-10cm,与原来单纯覆盖秸秆相比,在干旱季节表层土壤水分含量可增加1.5%,凋萎含水量出现几率减少8%,抗旱效果大大增强,是一种值得推广的防旱措施.另外,与对照相比,深翻0.8m对改善土壤水分状况也有明显效果.不同覆盖物的试验结果表明,覆盖草本植物残体,在改善表层土壤水分状况、提高作物产量上的效果优于覆盖秸秆植物残体,建议在应用诸如玉米等稿秆作物的秸秆进行覆盖时应进行切碎处理并适当配施无机肥料.
Improved method of straw mulching on kiwifruit orchard in red soil ecological experiment station of Chinese Academy of Sciences. The results showed that after covering the straw with red soil in dry land, it covered ± 5 - 10cm after the straw was covered. Compared with the original straw, the moisture content of the surface soil increased by 1.5% in the dry season, the probability of withered water decreased by 8% Enhancement is a worthwhile promotion of drought control measures. In addition, compared with the control, the depth of 0.8m to improve soil moisture status also has a significant effect. The test results of different coverings indicate that covering the residues of herbaceous plants is better than covering straw plant residues in improving the soil moisture status of the surface layer and improving the crop yield. It is suggested that when the straw covering the draft straw crops such as corn is used for covering, Shredding and proper application of inorganic fertilizers.