炭化秸秆覆盖用于保护性耕作的试验研究

针对一年两熟区保护性耕作地块秸秆量大，全秸秆覆盖播种时机具易堵塞、影响出苗等问题，该研究通过6种不同处理方式的田间试验，研究了不同耕作与地表覆盖结合方式对土壤水分状况、作物生长特性及作物产量的影响。结果表明，与免耕秸秆覆盖相比，虽然含水率略低，但免耕农业碳覆盖不仅能够解决秸秆量大易堵塞、晾籽等现象，而且能够提高作物生长特性如出苗、株高及作物产量，对保护性耕作的推广与发展具有促进作用。

Experimental study of the use of carbonized straw covers on conservation tillage

The large quantities of 100% straw covered fields in the annual double cropping system affects the operation of the no-till planter, which had been influenced the crop emergency. The effects of 6 different kinds of treatments on soil water content, plant growth characteristics and plant yields was researched in this study. The results showed that the problems of blocking under large amount of straw, seeds airing were solved under biochar covers in no-tillage treatment. Compared to straw covers in no-tillage treatment, the water content of biochar covers with no-tillage treatment was lower, in contrast, plant growth characteristics such as crop emergency and plant height and plant yields were increased. The results in this study can promote the extension and development of conservation tillage.