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农学学报

农学学报 ›› 2016, Vol. 6 ›› Issue (1): 88-91.doi: 10.11923/j.issn.2095-4050.cjas15090010

• 畜牧 兽医 水产 • 上一篇    下一篇

畜禽粪便中钾的有效性及其在土壤中的释放特点

倪中应,叶永青,徐立军,谢国雄,许杰   

  1. 桐庐县农业技术推广中心,桐庐县农业技术推广中心,桐庐县农业技术推广中心,杭州市植保土肥总站,富阳市农业技术推广中心
  • 收稿日期:2015-09-28 修回日期:2015-11-10 接受日期:2015-11-18 出版日期:2016-01-29 发布日期:2016-01-29
  • 通讯作者: 倪中应 E-mail:xgx1000
  • 基金资助:
    2013—2014 年度杭州市财政项目“杭州市商品有机肥的研究与应用”（杭农财2013-17）

Chemical Forms and Release Characteristics of Potassium in Livestock and Poultry Manure

  • Received:2015-09-28 Revised:2015-11-10 Accepted:2015-11-18 Online:2016-01-29 Published:2016-01-29

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摘要： 为了解畜禽粪便中钾对农作物的生物有效性，对采自杭州市规模化养殖场的牛粪、猪粪、鸭粪和鸡粪等4 种畜禽粪进行了钾的化学形态分析及其土壤培养试验。结果表明：4 种畜禽粪便中全钾含量在4.87~53.40 g/kg 之间，平均为21.50 g/kg。含钾量由高至低依次为猪粪>鸡粪>鸭粪>牛粪。畜禽粪便中的钾具很高的生物有效性，其中，速效钾占全钾的比例平均为49.4%，缓效钾占全钾的比例平均为32.4%。畜禽粪便施入土壤后，其中大部分钾可在短时间内释放成为土壤有效钾。

关键词: 新余蜜桔, 新余蜜桔, 采收期, 生理特性, 耐贮性

Abstract: In order to know the bio-availability of potassium in livestock and poultry manure, four kinds of livestock and poultry manure including cattle manure, pig manure, duck manure and chicken manure were collected from large-scale farms in Hangzhou. The chemical forms of potassium were analyzed and the soil cultivation experiments were conducted. The results showed that the total K content in the manure ranged from 4.87 to 53.40 g/kg, and the average value was 21.50 g/kg. Potassium content in livestock and poultry manure decreased in the order of pig manure, chicken manure, duck manure and cattle manure. Bio-availability of K in livestock and poultry manure was very high. The average proportion of available K in the total K was 49.4%, and the average proportion of slow-release K in the total K was 32.4%. Most potassium in the manure could be released into soil and became available K in a short time after the manure was applied to soil.