中国稻米

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缓控释氮肥种类和用量对南方粳稻产量和收益的影响

  1. 1江西省农业环境监测站,南昌 330046;2 江西省红壤研究所,南昌 331717
  • 出版日期:2016-09-20 发布日期:2016-09-20
  • 通讯作者: 陈燕
  • 基金资助:

    江西省水稻产业技术体系“清洁生产与质量控制”(JXARS-02-06)

Effects of Different Type and Amount of Slow-release Nitrogen Fertilizer on Yield and Economic Benefit of Japonica Rice in South China

  • Online:2016-09-20 Published:2016-09-20

摘要:

为探明南方丘陵区粳稻种植中适宜的缓控释氮肥种类和合理的用量,本研究以普通尿素为对照,分析比较了2种包膜尿素(树脂包膜尿素和水溶性聚合物包膜尿素)不同用量下粳稻产量和肥料利用率的变化,并结合成本投入评估了不同处理的收益。结果表明,与普通尿素相比,施用缓控释肥显著提高了南方丘陵区粳稻产量、氮肥农学效率和收益,其中水溶性聚合物包膜尿素是较好的缓控释肥种类,适宜用量为195 kg/hm2(纯N)。

关键词: 缓控释肥, 粳稻, 南方丘陵区, 产量

Abstract:

In order to define the reasonable type and amounts of slow-release nitrogen fertilizer on japonica rice in Southern hillside area, the authors analysised the yield and fertilizer use efficency of two kinds of slow-release nitrogen fertilizer with different coating materials(resin coated urea and water-soluble polymer coated urea), and assessed the inputs and benefits of different treatments, taking common urea as control. The results showed that slow-release fertilizer significantly increased rice yield, agronomic efficiency and economic benefit, compared with common urea. The water soluble polymer coated urea is a better kind of slow-release fertilizer in Southern hillside area, and the best application amount was 195 kg/hm2.

Key words: slow controlled release fertilizer, japonica rice, Southern hillside area, yield

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