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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (27): 142-146.doi: 10.11924/j.issn.1000-6850.casb15060092

• 农学 农业基础科学 • 上一篇    下一篇

仙草氮磷钾施肥效应及其适宜用量研究

危天进   

  1. (福建省武平县土壤肥料技术站,福建武平 364300）
  • 收稿日期:2015-06-16 修回日期:2015-08-13 接受日期:2015-07-23 出版日期:2015-09-23 发布日期:2015-09-23
  • 通讯作者: 危天进
  • 基金资助:
    国家测土配方施肥项目“武平县测土配方施肥技术示范推广”（2013—2014年）。

Studies on Fertilization Effect and Suitable Amounts of Nitrogen, Phosphorus and Potassium on Hsian-tsao

Wei Tianjin   

  1. (Fujian Province Wuping Soil and Fertilizer Station, Wuping Fujian 364300)
  • Received:2015-06-16 Revised:2015-08-13 Accepted:2015-07-23 Online:2015-09-23 Published:2015-09-23

PDF (PC)

383

摘要： 为探索不同氮磷钾肥施肥量对仙草产量的影响，应用“3414”设计方案进行氮磷钾肥效田间试验。结果表明：对仙草产量影响效应大小的肥料种类依次为钾肥＞氮肥＞磷肥；根据肥料效应函数，结合当地仙草生产实际，仙草最高施肥量为N 200.7 kg/hm2、P2O5 94.7 kg/hm2和K2O 262.5 kg/hm2，最高产量为11089 kg/hm2，三要素最佳比例为1:0.47:1.3；最佳经济施肥量为N 193.7 kg/hm2、P2O5 88.4 kg/hm2和K2O 241.4 kg/hm2，最佳经济产量为11072.4 kg/hm2，三要素最佳比例为1:0.46:1.25。仙草生产中应重视氮磷钾肥的配合施用，应采用磷含量较低、氮钾含量较高的复合肥。

关键词: 新城疫病毒, 新城疫病毒, F基因, RT-PCR, 序列分析

Abstract: In order to study the effect of different fertilizing amount of nitrogen, phosphorus and potassium on the yield of Hsian-tsao, we made field fertilization experiment of nitrogen, phosphorus and potassium by the “3414” design. The results showed that the effect of fertilizer types on the yield of Hsian-tsao was in an order as: potassium＞nitrogen＞phosphorus. According to the established function of fertilizer efficiency and the local production practice of Hsian-tsao, the highest fertilizing amount of Hsian-tsao was N 200.7 kg/hm2, P2O5 94.7 kg/hm2 and K2O 262.5 kg/hm2. The highest yield was 11089 kg/hm2, and the best rate of fertilization, N:P2O5:K2O was 1:0.47:1.3. The optimum economic fertilizing amount was N 193.7 kg/hm2, P2O5 88.4 kg/hm2 and K2O 241.4 kg/hm2, and the optimum economic yield was 11072.4 kg/hm2, and the best rate of fertilization, N:P2O5:K2O was 1:0.46:1.25. In the Hsian-tsa production, attention should be paid to the combined application of nitrogen, phosphorus and potassium. The compound fertilizer of low-content phosphorus, high-content nitrogen and potassium should be recommended.