陕西渭北柿子园种植白三叶草对土壤养分和生物学性质的影响

doi:10.13287/j.1001-9332.201902.020

应用生态学报 ›› 2019, Vol. 30 ›› Issue (2): 518-524.doi: 10.13287/j.1001-9332.201902.020

陕西渭北柿子园种植白三叶草对土壤养分和生物学性质的影响

左玉环¹,刘高远¹,杨莉莉¹,梁连友²,同延安^1,2*

¹西北农林科技大学资源环境学院, 陕西杨凌 712100;
²西北农林科技大学富平现代农业综合试验示范站, 陕西富平 711700

收稿日期:2018-06-06 修回日期:2018-12-18 出版日期:2019-02-20 发布日期:2019-02-20
通讯作者: E-mail:tongyanan@nwsuaf.edu.cn
作者简介:左玉环,女,1992年生,硕士研究生.主要从事果园生草研究.E-mail:1614300974@qq.com
基金资助:
本文由陕西省主要作物减肥增效创新技术研究项目(K3380216155)资助

Effect of planting white clover on nutrients and biological properties of soils in persimmon orchard of Weibei, Shaanxi Province, China.

ZUO Yu-huan¹, LIU Gao-yuan¹, YANG Li-li¹, LIANG Lian-you², TONG Yan-an^1,2*

¹College of Environment and Resource, Northwest A&F University, Yangling 712100, Shaanxi, China;
²Fuping Modern Agriculture Comprehensive Experimental Station, Northwest A&F University, Fuping 711700, Shaanxi, China

Received:2018-06-06 Revised:2018-12-18 Online:2019-02-20 Published:2019-02-20
Supported by:
This work was supported by the Project of the Innovative Technology of Reducing the Amount of Chemical Fertilizer and Increasing the Benefit of Main Crops in Shaanxi Province (K3380216155).

摘要/Abstract

摘要： 种植豆科绿肥可以有效增加氮肥来源,提高水土保持能力,改善生态环境与土壤质量,是促进农业生产可持续发展的重要措施之一.本试验研究了柿子园种植白三叶草对土壤养分和生物学性质的影响,以探明果园种植豆科绿肥在土壤肥力改良与经济效益提升方面的潜力.设柿子园清耕、种植白三叶草2个处理,于2017年9月14日分别采集0～10、10～20、20～30和30～40 cm土层样品,以分析两个处理对土壤有机质、速效氮、微生物生物量碳、氮和酶活性的影响.结果表明: 与清耕相比,生草后的整个被测土层的有机质、速效氮、微生物生物量碳、氮及脲酶、蔗糖酶、过氧化氢酶、碱性磷酸酶活性均增加,其中,0～10 cm土层生草处理的有机质、微生物生物量碳增加效果显著,10～20 cm土层速效氮含量增加效果显著,0～20 cm土层中脲酶活性显著增加,而过氧化氢酶活性、蔗糖酶及土壤酶活性的几何平均值(GME)则在整个被测土层都显著增加.表明果园生草能改善土壤肥力状况,在一定程度上可减少化肥氮投入量,提高果园经济效益,是一种优良的果园栽培模式.

关键词: 果园生草, 土壤养分, 经济效益, 土壤酶活性

Abstract: Leguminous crop planting is one of the most important managements in sustainable agriculture, which has the potential to improve soil quality and environmental health by increasing N input and facilitating soil and water conservation. In this study, effects of white clover planting on soil nutrients and biological properties in persimmon orchard was investigated to understand its potential effects on improvement of soil fertility and economic performance. Soil samples were collected on September 14^th, 2017 at 0-10 cm, 10-20 cm, 20-30 cm and 30-40 cm soil depth in two treatments (i.e. ploughing with no grass and planting white clover) in persimmon orchard, and were analyzed for soil available nitrogen, organic matter, microbial biomass carbon and nitrogen, and enzyme activity. Compared to the control, soil available nitrogen, organic matter, microbial biomass carbon and nitrogen, and the activities of urease, sucrase, catalase and alkaline phosphatase all increased in grass treatment. Specifically, in grass planting treatment, soil organic matter and microbial biomass carbon were significantly increased at 0-10 cm soil, and increased soil avai-lable nitrogen was found at 10-20 cm soil. For enzyme activity, significantly elevated urease activity exhibited at surface depth (0-20 cm), while catalase, sucrase activity and geometric mean (GME) of enzyme activity were higher within entire tested soil profile (0-40 cm). Overall, our results indicated white clover planting in orchard could not only facilitate soil fertility, but also reduce chemical fertilizer input and improve economic benefit, which could be considered as a good orchard cultivation mode.

Key words: planting white clover in orchard, soil enzyme activity, economical benefit, soil nutrient

左玉环,刘高远,杨莉莉,梁连友,同延安. 陕西渭北柿子园种植白三叶草对土壤养分和生物学性质的影响[J]. 应用生态学报, 2019, 30(2): 518-524.

ZUO Yu-huan, LIU Gao-yuan, YANG Li-li, LIANG Lian-you, TONG Yan-an. Effect of planting white clover on nutrients and biological properties of soils in persimmon orchard of Weibei, Shaanxi Province, China.[J]. Chinese Journal of Applied Ecology, 2019, 30(2): 518-524.

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陕西渭北柿子园种植白三叶草对土壤养分和生物学性质的影响

Effect of planting white clover on nutrients and biological properties of soils in persimmon orchard of Weibei, Shaanxi Province, China.

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