A formula was established by the outputs of nutrient-deficient plots instead of the CK plots,which is near to the natural conditions and lead to the increase of soil nutrient-supplying potential but the decreaes of fertilization.

Effect of climate on soil supplying nutrient capability to early rice;

Effects of continuous three-years stationary application of organic compound fertilizer of monosodium glutamate on yield,quality of grapefruit and soil fertility property;

Spatial variability of main soil fertility properties and rational sampling number in pomelo plantation;