冬种马铃薯免耕稻草覆盖栽培不同施肥量探讨

A discussion on different fertilization amounts in no-tillage & straw-covered cultivation of winter potato

为了进一步发挥冬种马铃薯免耕稻草覆盖栽培的优势,最大限度的增加农民收入,进行冬马铃薯免耕栽培一次性配方施肥最佳施肥量的对比试验。通过分析施肥量对马铃薯产量、植株生长发育、主要经济性状、经济效益等方面的影响,发现在5个试验处理中,处理B(即每667m2施纯N10.5kg、P2O5 5.25kg、K2O 21kg)为最佳施肥方案。

In order to take the advantages of winter potato cultivation technology and increase farm-ers＇ income farthest,a plot experiment of fertilization amounts to evaluate the impact on yield,growth,economic characters and benefit.The results show that tin five treatments,treatment B（N10.5kg、P2O5 5.25kg、K2O 21kg/667m2）is the best one.