摘要
试验表明,深松耕法不仅能改善土壤的物理性状,创造合理的土壤耕层,而且促进了植株的生长发育。研究看出,土地深松后的甜菜生育期内叶面积指数增加了0.05～0.31;干物质积累强度增加了0.465g/(株·d);叶面积指数达3以上的净同化率增加0.34～0.73g/(m^2·d)。3年平均根增产15.5％,含糖率增加1.73度,产糖量增加27.6％。
The experiments shown that the physical characters and cultivating layer of soil could not be improved only, but the plant growth and development be promoted also. And it shown that the LAI increased 0.05-0.31 within growing season with soil deep loosen. The accumulated density of DM increased 0.465g/(plant.d). The NAR increased 0.34-0.73g/(m2.d) with LAI at over 3. The root yield increased 15.45%, sugar content 1.73%, sugar yield 27.6%.
关键词
甜菜
深松
光合性能
产质量
Deep loosen, photosyntlletic performance, Yield and quality
