›› 2017, Vol. 29 ›› Issue (3): 421-427.DOI: 10.3969/j.issn.1004-1524.2017.03.11

• Horticultural Science • Previous Articles     Next Articles

Effects of plastic film and straw mulching on soil nutrients of pear orchard

XU Kai, ZHANG Shaoyu, YUAN Jicun, YAN Shuai, HOU Guixue, ZHAO Deying*   

  1. Key Laboratory of Germplasm Resources Utilization of Horticultural Crops, Ministry of Agriculture/Institute of Pomology of CAAS, Xingcheng 125100, China
  • Received:2016-11-21 Online:2017-03-20 Published:2017-03-31

Abstract: Jinfeng pear was chosen as the tested material, and four treatments including plastic film mulching, straw mulching, plastic film and straw mulching, and clean tillage (the control) were set. The mulching treatments lasted for 3 years, to investigate the effects of different mulching treatments on soil nutrient of pear orchard. The results showed that the contents of alkaline hydrolytic nitrogen, available potassium and available copper under plastic film mulching in one year and during 3 years were decreased; the contents of available phosphorus, available iron, available zinc and available manganese under plastic film mulching in one year were increased, but the contents of available phosphorus and available zinc were decreased along with mulching years. The contents of alkaline hydrolytic nitrogen, available phosphorus, available potassium, available copper, available iron, available zinc and available manganese were significantly increased under straw mulching, plastic film and straw mulching, and the effect increased continuously along with mulching years. Among the three mulching treatments, straw mulching was the best. Thus, it is suggested that straw mulching can be applied in production of pear orchard.

Key words: mulching, plastic film, straw, pear orchard, soil nutrients

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