[1]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.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 03
Page number:
25-29
Column:
Public date:
2021-04-20
- Title:
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Effects of Humic Acid Application on Wheat Growth and Physical and Chemical Properties of Lou Soil
- Author(s):
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ZHAI Wenxi1, LIU Zengzhao1, HAO Mingde2,3, NIU Yuhua4
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(1.College of Natural Resources and Environment,Northwest A&F University,Yangling Shaanxi,712100,China;2.Institute of Soil and Water Conservation,Northwest A&F University,Yangling Shaanxi,712100,China;3.Institute of Soil and Water Conservation,CAS &MWR, Yangling,Shaanxi 712100,China;4.Shaanxi Institute of Agricultural Technology Extension Station,Xi'an 710021,China)
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- Keywords:
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humic acid; wheat; growth index; Lou soil
- CLC:
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S156.2
- DOI:
-
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- Abstract:
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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.