ZHAI Wenxi,LIU Zengzhao,HAO Mingde,et al.Effects of Humic Acid Application on Wheat Growth and Physical and Chemical Properties of Lou Soil[J].Research of Soil and Water Conservation,2021,28(03):25-29.
施用腐植酸对小麦生长和土理化性质的影响
- Title:
- Effects of Humic Acid Application on Wheat Growth and Physical and Chemical Properties of Lou Soil
- 文章编号:
- 1005-3409(2021)03-0025-05
- Keywords:
- humic acid; wheat; growth index; Lou soil
- 分类号:
- S156.2
- 文献标志码:
- A
- 摘要:
- 为解决陕西土地区自然侵蚀严重、土壤肥力有限、水分短缺等问题。以“开麦18”为研究对象,设置5个腐植酸固体肥不同施用水平,对不同施肥水平对土壤物、化性状和小麦生长指标的影响进行研究。结果表明:1 200 kg/hm2,1 600 kg/hm2水平下,腐植酸固体肥可以显著提高土壤中有机质的含量,800 kg/hm2,1 200 kg/hm2,1 600 kg/hm2对土壤速效磷、速效钾均有显著提高,对土壤pH有着显著的降低效果。施用腐植酸肥料对小麦生长指标均有显著提高,通过对腐植酸施用浓度与生长指标的回归方程求解,得出在667～1 122 kg/hm2施肥区间使用腐植酸肥料可获得最佳产量。
- Abstract:
- In order to solve the problem of severe natural erosion, limited soil fertility and water shortage in the Lou soil area of Shaanxi Province, we took ‘Kaimai 18' as the research object, set five different application levels of humic acid solid fertilizer to study the effects of different application levels on soil physical and chemical properties and wheat growth index. The results show that, at the levels of 1 200 kg/hm2 and 1 600 kg/hm2, the humic acid solid fertilizer can significantly increase the content of soil organic matter. Treatments of 800 kg/hm2, 1 200 kg/hm2, and 1 600 kg/hm2 significantly increase soil available phosphorus and available potassium, and have the significant effect on reducing the soil pH; the application of humic acid fertilizers significantly improves the wheat growth index. It is concluded that the best yield can be obtained by using humic acid fertilizer in the range of 667 kg/hm2～1 122 kg/hm2 by solving the regression equation of the concentration of humic acid and the growth index.
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备注/Memo
收稿日期:2020-07-18 修回日期:2020-07-27资助项目:西安市农业科技创新工程项目“多功能腐殖酸速溶多元微肥在智慧农业中关键技术应用研究”(201806116YF04NC12(6)); 西安市未央农业科技创新计划项目“超临界撞击制备多功能腐植酸微胶囊关键技术机器产业化培育示范研究”(201829)第一作者:翟文晰(1995—),男,山东省菏泽人,硕士研究生在读,研究方向:土壤改良及养分评价。E-mail:wenxizhai@nwafu.edu.cn通信作者:郝明德(1957—),男,陕西省华县人,博士生导师,研究员,主要从事长期轮作施肥系统土壤肥力研究。E-mail:mdhao@ms.iswc.ac.cn