期刊论文

中文

中国农学通报

1000-6850

2015

31

20

177-180

201303103:公益性行业(农业)科研专项 2010FJ6022:湖南省科技厅项目 2013NK3034:湖南省科技厅项目

本校为其他机构

为了探明控释肥包衣剂的控释性能,参考国标GB/T 8572-2001对样品进行前处理,测定样品中N、P、K含量,并测定包衣肥中养分初期释放率、微分释放率和养分累积释率。结果显示：包衣肥中养分N、P、K的初期释放率〈15%,其中N的初期释放率大于P和K的初期释放率;与未包衣的对照肥相比,包衣肥养分N、P、K的初期释放率均明显降低,包衣肥中养分的释放更均匀平稳,能够满足作物生长中对养分的需求,提高肥料利用率,表明控释肥包衣剂的控释性能良好。

In order to explore the controlled release properties of coating- agent, the author carried outpretreatment of the samples referring to the national standard GB/T 8572-2001 and measured N, P, K contentin the samples. The initial release rate, differential release rate and cumulative release rate of coated fertilizernutrients were detected. The results showed that the initial release rates of N, P, K in the coated fertilizer wereless than 15%, and the initial release rate of N was greater than that of P and K. Compared to the uncoatedfertilizer, the initial release rates of N, P and K of the co...