玉米专用肥的农用效应

1991年在全省三个玉米产区进行了玉米专用肥田间试验,结果表明:山西省各地区褐土类型土壤上施用玉米专用肥效果好,亩施有效养分10公斤,增产玉米90～150公斤,效果显著,可得纯收入20～50元,经济效益明显。

AGRICULTURAL EFFECT OF SPECIFIC FERTILIZER OF CORN

In 1991,We make a field experiment with the specific fertilizer of corn in the three provincial corn-producing areas,It shows that the corn can yield well if the specific ferticizer of corn is applied in the drab soil in every district of Shanxi Province.If such fertilizer is applied 10kg per mu,the output of corn will incrase by 90 to 150kg.Thus, the net income will be 20 to 50 yuan with its obvious economic effectiveness.