Xinjiang Agricultural Sciences ›› 2018, Vol. 55 ›› Issue (10): 1794-1802.DOI: 10.6048/j.issn.1001-4330.2018.10.004

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Effects of Different Amounts of Concentrated Biogas Slurry on Growth, Development and Photosynthetic Characteristics of Cotton

XU Rui-qiang1,DONG He-lin2,XU Jiang-hui3,TANG Jiang-hua1,XU Wen-xiu1, Kadiliya Avudukelimu1,LI Da-ping1,DONG Tai-lin4,FU Chuan-cui4   

  1. 1.College of Agronomy, Xinjiang Agricultural University, Urumqi 830052, China;
    2.Institute of Cotton Research of CAAS /State Key Laboratory of Cotton Biology, Anyang Henan 455000, China;
    3. Research Institute of Cash Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China;
    4. Shandong Minhe Biotechnology Co., Ltd. Penglai Shandong 265600, China
  • Published:2019-01-24
  • Correspondence author: XU Wen-xiu(1962-),Li county, Hebei province ,Professor,Doctoral supervisor,Mainly engaged in research of farming system and agrecology,(E-mail)xjxwx@sina.com

不同用量浓缩沼液对棉花生长发育及光合特性的影响

徐瑞强1,董合林2,徐建辉3,唐江华1,徐文修1,卡地力亚·阿不都克力木1,李大平1,董泰丽4,付传翠4   

  1. 1.新疆农业大学农学院,乌鲁木齐 830052;
    2.中国农业科学院棉花研究所/棉花生物学国家重点实验室,河南安阳 455000;
    3.新疆农科院经济作物研究所;
    乌鲁木齐 830052;
    4.山东民和生物科技有限公司,山东蓬莱 265600
  • 通讯作者: 徐文修(1962-),河北蠡县人,教授,博士研究生导师,研究方向为农作制度与农业生态,(E-mail)xjxwx@sina.com
  • 作者简介:徐瑞强(1995-),硕士研究生,研究方向为作物高产栽培,(E-mail)2607388620@qq.com
  • 基金资助:
    新疆维吾尔自治区科技援疆项目(2016E2019)

Abstract: 【Objective】 Concentrated biogas slurry is a kind of fertilizer resource produced by the processing of biogas waste and an important way for crops to realize environmentally friendly and resource-efficient production, so it is of positive significance to promote our country's agricultural ecological transformation. 【Method】 To explore the concentrated biogas slurry application technology of high yield in cotton, field experiments were conducted to study the effects of different concentrations of biogas slurry liquid on cotton growth dynamics, photosynthetic characteristics and yield.【Result】 The results showed that the application of concentrated biogas slurry had a significant effect on cotton growth, development and yield formation, and the greater the amount of concentrated biogas slurry liquid was, the stronger the promoting effect was. The plant height, stem diameter, dry matter accumulation per plant, leaf area index were the best by applying 175 L/hm2 concentration of biogas slurry, which were higher 8.83%, 12%, 24.78% and 16.38 % than those of the CK treatment in the same growth period, respectively. Application of concentrated biogas slurry could improve the photosynthetic capacity of cotton, and all photosynthetic characteristic parameters of cotton were optimal by applying 175 L/hm2 concentrated biogas slurry, the net photosynthetic rate (Pn), transpiration rate (Tr) and stomatal conductance (Gs) were 29.35%, 20.60% and 17.99% higher than those of CK at full-bloom stage, respectively, while intercellular CO2 concentration (Ci) was 19.66% lower than that of the CK at the same period. Using concentrated biogas slurry could increase the number and weight of boll of cotton, thus increasing the yield of cotton. The highest grain yield of 175 L/hm2 concentrated biogas slurry treatment was 7 445.68 kg/hm2, 17.77% higher than that of the CK. 【Conclusion】 Within the scope of this study, the higher concentration application of concentrated biogas slurry was more beneficial to the cotton growth and increase the yield.

Key words: concentrated biogas slurry; cotton; growth and development; photosynthetic characteristics; ecological agriculture

摘要: 【目的】 分析不同浓缩沼液用量对棉花生长动态、光合特性及产量的影响。研究促进棉花高产的浓缩沼液施用技术。【方法】 采用田间试验方法。【结果】 施用浓缩沼液对棉花的生长发育和产量形成有显著的促进作用,且浓缩沼液施用量越大,促进作用越强。施用175 L/hm2浓缩沼液的株高、茎粗、单株干物质积累、叶面积指数均表现最佳,各项生长指标最高时比对照同期值分别高出8.83%、12%、24.78%、16.38%。施用了175 L/hm2浓缩沼液,棉花的各项光合特性参数表现最优,盛花期时Pn、Tr、Gs分别比对照同期值高29.35%、20.60%、17.99%,而Ci比对照低19.66%。施用浓缩沼液能够提高棉花的铃数和铃重,施用了175 L/hm2浓缩沼液的籽棉产量最高,达到7 445.68 kg/hm2,比对照高出了17.77%。【结论】 施用高浓度的浓缩沼液更有利于棉花的生长发育,促进产量的提高。

关键词: 浓缩沼液, 棉花, 生长发育, 光合特性, 生态农业

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