[1]CHEN Wei,WANG Jia,SUN Congjian,et al.Effects of Different Nitrogen Treatments and Tartary Buckwheat Cultivars on Soil Water and Fertilizer of Typical Loess Plateau Soil[J].Research of Soil and Water Conservation,2021,28(01):65-72.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 01
Page number:
65-72
Column:
Public date:
2021-01-10
- Title:
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Effects of Different Nitrogen Treatments and Tartary Buckwheat Cultivars on Soil Water and Fertilizer of Typical Loess Plateau Soil
- Author(s):
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CHEN Wei, WANG Jia, SUN Congjian, WANG Hongyang, LI Yaxin
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(College of Geographical Science, Shanxi Normal University, Academician's Workstation for Information Management of Resources and Environment in Shanxi Province,Linfen,Shanxi 041004,China)
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- Keywords:
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different nitrogen treatment; soil water and fertilizer; tartary buckwheat; Loess Plateau
- CLC:
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S158.3
- DOI:
-
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- Abstract:
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In order to investigate the characteristics of water and fertilizer of typical soils of the Loess Plateau under different fertilization and tartary buckwheat cultivars, three nitrogen treatments(0, 80, and 100 mg/kg urea)were set up to investigate differences in nitrogen tolerance tartary buckwheat cultivars(Heifeng No.1, HF, low nitrogen tolerance; Diqing tartary buckwheat, DQ, low nitrogen tolerance)on the status of soil water and fertilizer. The results showed that:(1)the analysis results of the cracking zone showed that the interactions among nitrogen control amount, cultivar, nitrogen control amount, and cultivar and period had extremely significant differences in soil nutrients(p<0.01);(2)the organic matter, pH, total nitrogen, available potassium, and total potassium in DQ field were higher than those in HF feild under the normal nitrogen(100 mg·kg-1)throughout the growth period, alkali-hydrolyzed nitrogen, total nitrogen, total phosphorus, and pH in DQ field were higher than those in HF field under low nitrogen(80 mg/kg); without nitrogen, water content, organic matter, available phosphorus, total nitrogen, total nitrogen phosphorus in DQ field were higher than those in HF field under control treatment(0 mg/kg). In summary, the water and fertilizer consumption of HF was greater than that of DQ during the whole growth period, and there was a risk of lowering soil pH after the end of the growth period. For the sustainable development of soil in the barren region of the Loess Plateau, more cultivars with high tolerance to fertility should be selected.