Experiment and Demonstration of Application Effects of Slow -release Fertilizer on Summer Corn in Central Region of Shandong
Guo Yuesheng
Ma Ronghui
Gao Ruijie
Xing Xiaofei
Wang Jian
Yan Fang
Wang Guixiang
Ma Wenli
Abstract：The effects of slow -release fertilizer on the agronomic characters,yield and nitrogen utiliza-tion under synchronized seeding and fertilization were studied by the field experiment.The results showed that the corn agronomic characteristics were effectively improved by application of slow -release fertilizer,single basal application could solve the problem of fertilizer shortage at the late growth stage of corn.The summer corn yields under the slow -release fertilizer treatment and 90% slow -release fertilizer treatment had no sig-nificant difference,but both were significantly higher than the yield under conventional fertilizer treatment. The yield under 90% slow -release fertilizer treatment was the highest,that of two experiment sites reached 688.3 kg and 711.0 kg per 666.7m2 .The nitrogen utilization of slow -release fertilizer treatment was signifi-cantly higher than the formula fertilizer and conventional fertilization.The nitrogen utilization under 90% slow-release fertilizer was the highest,which was higher than conventional fertilization by 11.25,15.68 percent point and 14.42,21.01 percent point respectively.The results indicated that the treatment of 90% slow -re-lease fertilizer had significant effect on decreasing cost and increasing benefit.
Keywords：Slow -release fertilizerSummer cornSynchronized seeding and fertilizationYieldNi-trogen utilization
Publication Date：2015-07-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 78-80,90 )