新疆农业科学 ›› 2019, Vol. 56 ›› Issue (3): 509-520.DOI: 10.6048/j.issn.1001-4330.2019.03.014

• 棉花化肥农药减施研究 • 上一篇    下一篇

连作障碍消减措施对棉花产量形成和化感自毒作用的影响

刘雪花1, 支金虎1, 柴朝晖2, 王德胜1, 姚永生1, 王远1, 唐梦1, 宋伞伞1, 郑森宇1   

  1. 1.塔里木大学植物科学学院,新疆阿拉尔 843300;
    2.亿利阿拉尔生态科技有限公司,新疆阿拉尔 843300
  • 收稿日期:2018-12-18 出版日期:2019-03-20 发布日期:2019-06-25
  • 通信作者: 支金虎(1978-),男,甘肃张掖人,硕士,教授,研究方向为植物营养土壤健康管理,(E-mail)zjhzky@163.com
  • 作者简介:刘雪花(1981-),硕士研究生,研究方向为植物营养土壤健康管理,(E-mail)xueren5255@qq.com.
  • 基金资助:
    国家重点研发计划(2017YFC0504303,2017YFD0201900)

Effects of Different Abatement Measures of Continuous Cropping Obstacle on Yield Formation and Allelopathic Autotoxicity of Cotton (Gossypium hirsutum L.)

LIU Xue-hua1,ZHI Jin-hu 1,CHAI Zhao-hui2,WANG De-sheng1,YAO Yong-sheng1, WANG Yuan1,TANG Meng1,SONG San-san1,ZHENG Sen-yu1   

  1. 1.College of Plant Science, Tarim University, Aral Xinjiang 843300;
    2.Yili Aral Ecological Technology Co. LTD,Aral Xinjiang 843300, China
  • Received:2018-12-18 Online:2019-03-20 Published:2019-06-25
  • Correspondence author: ZHI Jin-hu (1978- ), male, native place: Zhangye, Gansu. Professor, research field: Plant nutrition and soil health management. (E-mail)zjhzky@163.com
  • Supported by:
    Supported by the National Key R & D Programs (2017YFC0504303)and (2017YFD0201900)

摘要: 目的 研究新疆塔里木盆地 棉花在不同连作障碍消减措施下的化感自毒效应和评价方式。方法 采用田间小区试验,研究不同消减措施对塔里木盆地棉花土壤养分净变化、植株生长、产量、种子发芽的化感自毒效应。结果 不同的消减措施对棉花各项指标和化感综合指数有显著差异;CRI处理后土壤中碱解氮净变值最小,CRR处理后土壤速效磷减少量最大,而速效钾则是RIM处理下减少量最大,不论是0~20 cm土层还是20~40 cm土层均是如此; RIM和CM对棉花株高、果枝台数、籽棉产量都具有显著的促进作用,RIM对棉花单铃重具有显著的促进作用,微生物肥料在其中起到了重要的作用;碱解氮的净变值与棉花籽棉产量之间呈负相关关系,而速效磷和速效钾的净变值则与棉花籽棉产量呈负相关关系,其中二次多项式达到显著或极显著水平;将选择的各指标按公式进行RIs计算和比较,发现各消减措施都能表现出一定的化感促进作用,其中以RIM处理(棉花-油菜间作+微生物肥料)下的RIs最大,化感促进作用最强,而不同浸提浓度下则以1:10表现的最佳,RIs均为正值且化感综合指数最大。结论 生产中采用棉花-油菜间作+微生物肥料是减轻棉花连作障碍有效和可行的方法。

关键词: 棉花; 连作障碍; 消减措施; 生长; 化感自毒作用

Abstract: Objective To explore the cotton allelopathic autotoxicity effects and evaluation methods under different continuous cropping obstacle abatement measures in Tarim Basin, China.Method The field plot tests were adopted and four measures, continuous cropping with microbial fertilizer (CM), cotton - rape rotation (CRR), cotton-rape intercropping (CRI) and cotton - rape intercropping with microbial fertilizer((RIM), were used in this experiment. Then, some effects of the abatement measures were concluded, and RIs index and evaluation results raised. Result The results showed there were significant differences between different indexes and allelopathic synthetical index under different abatement measures. Both in the 0-20 cm soil layer and the 20-40 cm soil layer, the net change value of alkali-hydrolyzed nitrogen in the soil after CRI treatment was the minimum, and the decrease amount of readily available phosphorus in the soil after CRR treatment was the maximum, while the decrease amount of readily available potassium was the maximum under RIM treatment. RIM and CM had significant promoting effects on cotton plant height, number of fruit branches and cotton yield, meanwhile, RIM had significant promoting effects on single boll weight of cotton, among which microbial fertilizer played an important role. The net change of alkali-hydrolyzed nitrogen was negatively correlated with seed cotton yield, while the net change of readily available phosphorus and readily available potassium were negatively correlated with seed cotton yield, where the quadratic polynomial reached the significant or extremely significant level. After choosing the indexes according to the formula, RIs was calculated and compared, then it was found that there was a certain degree of allelopathy promoting effect under all the control measures, in which under RIM treatment (cotton-rape intercropping with microbial fertilizer), RIs was the largest and allelopathy promotion was the strongest, while it had the best effect and the largest RIs under the extracting concentration of 1∶10.Conclusion The way of cotton-rape intercropping with microbial fertilizer is an effective and feasible method to reduce the continuous cropping obstacles of cotton.

Key words: cotton (Gossypium hirsutum L.); continuous cropping obstacle; abatement measures; growth; allelopathic autotoxicity

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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