摘要
利用现有播种机和对 2BY— 3型玉米免耕播种机排肥部件的改进 ,实现了玉米免耕播种时不同方式的种肥施入。论述了各种施肥方式对玉米产量的影响和对生态环境的潜在影响 ,并对各种施肥方式的夏玉米生产进行了投入产出分析 ,证明玉米免耕播种时化肥与种子不等距间施玉米产量最高 ,投入产出效益最好 。
The economic and ecological analysis of zero tillage corn seeding techniques were conducted in this paper. The fertilizer could be added to the soil which the corn was seeded. It showed that the unequivalent-distance adding fertilizer was the best way for the zero tillage corn seeding in the dryland area.This could increase the income and decrease the pressure of environmental detrimentation. This technique was useful for the sustainable agricultural development in agricultural production.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2000年第1期85-87,共3页
Journal of Hebei Agricultural University
基金
河北省自然科学基金委员会资助项目! (397378)
关键词
机械
施肥
玉米
产量
生态
免耕播种
machinery
adding fertilizer
corn
zero tillage
economy
analysis
