通过2008年在肥东花生原种场进行田间小区试验，研究了不同包膜控释尿素不同用量对花生产量和氮肥利用率的影响。结果表明，金正大包膜控释尿素增产效果显著。在等氮条件下，与普通尿素相比，SPCU100%和PCU100%分别增产15.6%和13.00%，氮素利用率分别为51.14%和54.92%；SPCU70%和PCU70%分别增产9.66%和23.12%，氮素利用率分别为48.36%和60.87%。金正大包膜控释尿素一次性在花生上基施具有增效、节肥、省工的特点。此外，金正大包膜控释肥还可以改善花生农艺性状。金正大树脂包膜控释尿素减氮30%施用，在花生上应用效果最好。

In 2008, field plot experiments were conducted to investigate the effects of controlled-releases coated urea on peanut yield and apparent N recovery rates at peanut foundation seed farm, Feidong. The results showed that the application of CRUs in peanut could improve the yield significantly. In comparison with common urea, especially with the equal content of nitrogen, SPCU100% and PCU100% increased by 15.6%, 13.00% respectively, and the apparent N recovery rates was 51.14% and 54.92% respectively; SPCU70% and PCU70% increased by9.66%, 23.12% respectively, and the apparent N recovery rates was 48.36% and 60.87% respectively. Controlled-release coated urea by Kingenta had features such as efficiency, saving fertilizer, labor-saving. Application of CRUs significantly increased the apparent N recovery rates. In addition, CRUs by Kingenda also showed a beneficial result on the peanut quality. The effect of application was PCU70% in peanut.