Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2019, Vol. 40 ›› Issue (4): 629-637.DOI: 10.3969/j.issn.1000-2561.2019.04.002

• Crop Culture and Nutrition,Genetic Breeding • Previous Articles     Next Articles

Status Quo and Variation of Soil Fertility in Different Altitude of Coffea arabica L.

ZHAO Mingzhu,WU Ting,TANG Jin,MA Guanrun,GUO Tieying,XIAO Ziwei,SU Linlin,ZHOU Hua,BAI Xuehui()   

  1. Dehong Tropical Agriculture Sciences Institute of Yunnan Province, Ruili, Yunnan 678600, China
  • Received:2018-09-27 Revised:2019-01-02 Online:2019-04-15 Published:2019-05-21
  • Contact: Xuehui BAI

Abstract:

The soil fertility of Coffea arabica L. was analyzed by massive data of soil sampled in six main producing regions in Yunnan Province during 2015-2018, and compared with the data obtained during the second national soil survey to explore the laws and causes of the variation of the soil fertility. Presently, the soil fertility of C. arabica L. in Yunnan was pH 4.5-5.5 or 5.53 on average, organic matter 32.68 g/kg, alkalystic N 128.77 mg/kg, available P 18.01 mg/kg, and available K 138.31 mg/kg. The soil fertility had significant difference in different altitudes. pH and the content of alkalystic N decreased, the content of soil organic matter and available P increased, and the content of available K increased first and then decreased with the increase of altitude. Compared with the results from the second national soil survey, the soil pH, the content of organic matter, alkalystic N and available K decreased while available P increased significantly. The soil fertility varied significantly due to long-term frequent tillage and large application of chemical fertilizers in suitable areas. It is suggested that the application amount of phosphate fertilizer should be controlled, and the returning of coffee straw and peel to the field should be promoted to achieve the balance of supply and demand for nutrient.

Key words: C. arabica L., soil fertility, altitude, the second national soil survey