[1]Jumahan·Kasim,ZHANG Lina,FAN Peng,et al.Regional Differences in Soil Nutrient Contents of the Typical Apple Garden of the Loess Plateau[J].Research of Soil and Water Conservation,2015,22(01):316-323.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 01
Page number:
316-323
Column:
Public date:
2015-02-28
- Title:
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Regional Differences in Soil Nutrient Contents of the Typical Apple Garden of the Loess Plateau
- Author(s):
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Jumahan·Kasim1, ZHANG Lina1, FAN Peng1, CAO Yu2, LI Jun2
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1. College of Forestry, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
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- Keywords:
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typical apple garden of the loess plateau; regional differences; evaluation of soil fertility characteristics
- CLC:
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S158
- DOI:
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- Abstract:
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In this study, field investigation and laboratory analyses were carried out to gain a comprehensive insight into five kinds of soil nutrients (organic matter, total nitrogen, available phosphorus, total phosphorus, available potassium and total potassium) in three sections of the typical apple gardens in Fengxiang, Changwu,Yan’an of the Loess Plateau. Multivariate statistical analysis method was used to study the characteristics of nutrient distribution in soil profile (0—300 cm) in different sections of the northern slope of the Loess Plateau. According to the standard of the Second National Soil Survey, variation characteristics of fertility and nutrient contents of different soil profiles in the sections were analyzed. Variations in soil nutrient contents were also clarified. Furthermore, quantitative comparison of nutrient contents among different sections was performed. The results showed that the contents of soil nutrients in different apple production areas had obvious differences. The orders of the average value of soil total nitrogen contents, the average value of total phosphorus contents, the average content of available phosphorus, the average value of the total potassium contents, the average value of available K contents were Fengxiang > Changwu > Yanan, Changwu > Fengxiang > Yanan, Changwu > Fengxiang > Yanan; Fengxiang > Changwu > Yanan, Changwu > Fengxiang > Yanan, respectively. The soil nutrient parameters of the orchards of the counties presented similar profile distribution. All the total nutrient and available nutrient contents except the potassium totals and available nitrogen contents of all the orchards of the counties presented the obvious effect of surface enrichment. The nitrogen, phosphorous and potassium contents of the orchards were higher in top soil than in deep soil. In the soil profile of the 0—300 cm, soil organic matter content distribution similar in Changwu and Yanan, no vertical stratification phenomenon was found, and available potassium content in 0—100 cm soil layer declines with the increase of soil depth, the content of organic matter in the soil profile of 100—200 cm did not change obviously. Soil total nitrogen in 0—60 cm layer in Fengxiang orchard and Changwu orchard is deficient, available nitrogen is deficient, available phosphorus is medium and available potassium is medium rich. Soil total nitrogen, available nitrogen, available phosphorus, and available potassium in 0—60 cm layer in Yanan orchard are deficient. With respect to the variation of the nutrient contents of different orchard soil areas, we put forward the different fertilization recommendations. The organic fertilizer and nitrogen fertilizer, potassium fertilizer should be increased in Fengxiang orchard. Organic fertilizer, N, P, K fertilizer application should be increased in Changwu orchard. Soil nutrient status of the Yanan area is the worst, the intensity of fertilizer, organic fertilizer, N, P,K fertilizer application should be increased under balanced fertilization in order to balance fertilization