摘要
本项研究明确了不同叶片数水稻品种叶龄进展与发育期关系、各叶龄期施肥效果以及不同施肥量在不同年份间对产量的影响等，并提出了叶龄诊断施肥法．水稻的施肥，根据施肥营养生理、水稻各叶龄期施肥效果及利用率，确定施肥叶龄期和比例．生产实践证明，本施肥法方法简便、易行，容易达到省肥高产目的，比一般施肥法施肥利用率高20％以上，同等施肥量条件下增产10％左右．
The relation between leaf age and development period, fertilizer effect during age periods and the influence of different fertilizer amount on Yield in different year were defined in the thesis, and fertilizer method of leaf age diagnosis was proposed. It proved in producing practice, the method was simple, convenient to carry on, easy to attain high-yield aim of Jilin provinee, the utilized percent was over 2o% than general method, it increased yield about 10% under the same condition of fertilizer amount.
出处
《延边大学农学学报》
1997年第1期12-17,共6页
Agricultural Science Journal of Yanbian University
关键词
水稻
叶龄诊断
施肥利用率
施肥比例
Rice
Leaf age diagnosis, Fertilizer utilized percent
Fertilizer ratio
