single cropping造句

1、No-tillage seedling-throwing techniques of single cropping late rice in Xiushui county were reviewed in this paper.

2、Wheat root activity and nitrate reductase of green manure in intercropping increased 57.95% and 87.56% than that in single cropping, resp., with the differences at significant level.

3、Taking single cropping late rice Wuyujing 5 and 93 25 as contrast, the variety characters and the high yield population quality indexes were studied.

4、The growth speed of ryegrass regeneration shoots in intercropping with Chinese milk vetch faster than in single cropping by more than 50%.