Effects of potassium application on the photosynthetic characteristics, yield and fiber properties of different genotypic cotton(G.hirsutum L.);

Study on synthetical benefit of alley cropping and potassium application;

Results from more than 180 field demomstrations and 30 trials indicated that potassium application could increase wheat yield, and the amount of its response varied with the difference of soils.

Effects of different ridging mode and applying potassium fertilizer at different stages on chromoplast pigment and its degraded products in flue-cured tobacco leaves;

The effects of applying potassium fertilizer at peak bolling stage of cotton on the photosynthesis characteristic and yield were studied under filed conditions with middle-season hybrid varieties Biaoza A1,Jingza 2 and short-season normal varieties Yuzao 06,Zhongmian 30.

Improper fertilization or fertilizer abuse will result in nutrients imbalance in soil for plants growth, affect the yield and quality, the more important is that, the fertilizers remained in soil after crop uptake will be runoff, leaching by irrigation or rain water, accumulatively pollute ground and underground waters, the stability of .