土壤养分测试值与甜菜生产力的相关研究

A Correlation Study between Soil Nutrient and Beet yielding Ability

研究土壤养分测试值与甜菜生产力之间的相关关系，土壤有机质、有效氮、有效磷、有效钾与甜菜产量、产糖量呈线性相关，相关系数分别为0．59和0．56。

The paper gave two correlation eguations,one was between soil nutrient measured value and beet yielding ability, another was between humus,available nitrogen,available phosphate, available potosh in soil and beet yield, sugar yield. The correlation coefficient was 0. 59 and 0. 56 respectively.