高效甜菜专用肥配方筛选及肥效试验

Screening of High Efficiency Special Fertilizer Formulations for Beet and Fertilizer Efficiency Experiments

介绍了硼、锰、锌、钼等微量元素和稀土与氮、磷肥复配成颗粒肥施用于甜菜的增产增糖效果。先后试验了１６种配方，从中筛选出了最佳配方。该配方肥比磷酸二铵增产１７１～２５７ｋｇ／亩，增糖份０．６％；比不施增产９００ｋｇ／亩左右，增加糖份１．２％～２．２％。对实验数据进行回归处理，得出了施肥量与甜菜产量的回归方程为：ｙ＝２８１６＋１１．１８ｘ（单位：ｋｇ／亩）。最佳施肥量为３０ｋｇ／亩。

A study has been made of the application on beet of granular fertilizers made from trace elements, boron, manganese, zinc and molybdenum and rare earth elements compounded with nitrogenous and phosphatic fertilizers and the results of increase in yield and sugar content. 16 formulations have been tested in succession, with an optimun one screened out. The formulation gives an increase of 171～257kg/mu in yield and 0.6% in sugar content over diammonium phosphate, and about 900kg/mu and 1.2%～2.2%, respectively, over the contro1. The experimental data are processed by regression, obtaining a regression equation for the quantity of fertilizer applied and the beet yield: y=2816+11.8x(unit:kg/mu). The optimum quantity of fertilizer applied is 30kg/mu.