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Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (33): 197-205.doi: 10.11924/j.issn.1000-6850.2014-1631

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Investigation of Nutrient Status of the Orchard Soils in Gutian County, Fujian Province

  

  • Received:2014-06-10 Revised:2014-12-10 Accepted:2014-07-17 Online:2015-01-08 Published:2015-01-08

Abstract: The status of some nutrients of 7023 surface soils (0-40 cm) of the orchards in Gutian County, Fujian Province was investigated. The relationships between the nutrients and the main soil properties were discussed. The mean pH of the soils was 5.07 and the mean organic matter content was 25.38 g/kg. The contents of total N, alkali-hydrolysable N, available P, exchangeable K, Ca and Mg, and available Zn and B were 1.22 g/kg, 143.5 mg/kg, 29.95 mg/kg, 59.3 mg/kg, 226.1 mg/kg, 422.1 mg/kg, 0.15 mg/kg and 1.22 mg/kg, respectively. The contents of the above soil nutrients all increased with the increase in soil organic matter content and soil pH. It is concluded that the orchard soils were excessive in exchangeable Mg and available P, suitable in total N and available Zn, very poor in available K and exchangeable Ca, and poor in available B. Increasing soil organic matter content and improving soil acidity should the fundamental measurements in order to increase the supplying capacity for the soils.