关键词: 番茄, 番茄, 施肥处理, 硝态氮残留, 硝态氮淋失

Abstract:

The aim was to know the product traits on different sowing density of varieties (clones). The results were used to provide the reference for energy sugarcane extension and application. The experiments were carried out the comparative trials on five sowing density of five varieties for one-plant and one ratoon crop. There were no significant difference in levels of biological yield, cane yield, sugar yield and total fermentable sugar yield by difference sowing density; and the differences have reached a vary significant level among B1, B8, GT26, GT97/69, GT22 on the biological yield, cane yield, sugar yield and total fermentable sugar yield among yield components on plant height, stem diameter and number of millable stalks; GT97/69 and B1 were more sensitive to sowing density, the best sowing density was 12000 plants/hm2 and 13500 plants/hm2, other varieties were insensitive of sowing density. Variety was the most important factor in determining of sugarcane yield, which was responded differently to different sowing density .Before the extension and application, the comparison trials for different sowing density on the new sugarcane varieties were conducted to found the best sowing density.