The influences of potassium sulfate on maize yield and interaction of nitrogen and potassium
盐化潮土中硫酸钾对玉米产量及氮钾交互作用的影响

Field experiment was carried out to study the effects of K2SO4 application on maize yield,biomass,N and K uptake and their re-use in slightly salinized Chao soil.The results showed that for the tested soil with high available K content, K supply greatly increased the output of summer corn and improved N and K uptake by the plants,but reduced the recycling rate of N and K in the plants significantly at the later growth stage.