摘要
在豫西孟津县旱农褐土丘陵区，进行了小麦施用钾肥及其与氮肥配施的研究。结果表明，钾肥施用明显地提高了冬小麦产量，但不同年份、不同肥力的土壤，其效果不一。干旱年份优于正常年份；中高肥力地优于低肥地。钾肥与氮肥配合施用，可获得更高的产量，二者适宜的配合比例：中高肥力地应为（Ｋ：Ｎ）０．８６：１；低肥地为０．６２：１。
The K application in matching with N fertilizer was conducted in hilly area with cinnamon soil in Mengjin County of the west part of Henan Province.The re-sults showed that K application increased wheat yields greatly; but the yielding effects were due to diferent soil fertility in different years.the yield increasing in dry year was superior to the normal year;and the yield increasing in land with medium-high fertility was also superior to the land with low fertility. The matching application of K and P was able to obtain higher yields of wheat. The optimal matching rate between K and N should be the 0.86:1(K:N)for the land with 0.62:1 for the land with low fertility.
出处
《干旱地区农业研究》
CSCD
北大核心
1995年第2期63-67,共5页
Agricultural Research in the Arid Areas
关键词
冬小麦
钾肥
氮肥
钾氮比
产量
豫西旱地
winter wheat
Potassium fertilizer
N fertilizer
K:N rate
winter wheat yield
