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对黑龙江省甜菜主产区土壤主要农化性状指标与甜菜主要经济目标值的关系进行研究表明:甜菜块根产量与土壤有效氮、速效磷、有效钾和有机质含量均呈显著直线正相关;块根含糖率与土壤速效磷、有效钾和有机质含量呈显著或极显著直线正相关;与土壤有效氮呈显著二次抛物线性相关,其极大值为119.7ppm。土壤有效N/速效P_2O_5、有效N/有效K_2O比值对甜菜块根产量、含糖量和产糖量均有明显影响。通过施肥调控上述比值,可以获得较高的甜菜经济目标值。
The results showed that the root yield of beet was significantly and linearly positively correlated with available nitrogen, available phosphorus, available potassium and organic matter content in the main sugar beet producing areas in Heilongjiang Province. The contents of tuberous root There was a significant or very significant linear positive correlation between sugar and soil available P, available K and organic matter, and a significant quadratic parabolic correlation with soil available N, with a maximum of 119.7 ppm. Soil available N / available P 2 O 5, effective N / available K 2 O ratio had significant effects on root tuber yield, sugar content and yield of sugar beet. Through fertilization regulation of the above ratio, you can get a higher economic target beet.