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炭吸附聚谷氨酸对土壤肥力和作物产量的影响

Effect of Carbon Adsorption Polyglutamic Acid on Soil Fertility and Crop Yield

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【作者】 吉庆勋杨曼利李志明张卫杰党永富乔传令

【Author】 JI;Qing-xun;YANG Man-li;LI Zhi-ming;ZHANG Wei-jie;DANG Yong-fu;QIAO Chuan-ling;Henan Province Engineering Laboratory of the Side Effects of Pesticides and Injury Prevention and Control Technology,Henan Naian Ecological Management Limited Company;State Key Laboratory of Integrated Management of Pest Insects and Rodents,Institute of Zoology,Chinese Academy of Sciences;

【通讯作者】 乔传令;

【机构】 河南奈安生态治理有限公司农药副作用及药害防控技术河南省工程实验室中国科学院动物研究所农业虫鼠害综合治理研究国家重点实验室

【摘要】 为探索在减肥情况下炭吸附聚谷氨酸对土壤养分和作物产量的影响,本研究通过连续两年的田间原位试验,试验设3个处理,CK:常规施肥,即施复合肥750kg·hm-2;T1:减施30%化肥,即施复合肥525kg·hm-2;T2:减施肥30%化肥+炭吸附聚谷氨酸,即施复合肥525kg·hm-2和喷施炭吸附聚谷氨酸产品3.75kg·hm-2,比较不同处理下的玉米和小麦产量,在玉米成熟后取0~20cm土壤样品,测定土壤养分状况。结果表明:T2处理比对照,玉米平均增产3.2%,小麦增产8.1%,2017和2018年土壤有效氮分别提高9.9%和42.0%,土壤有效磷分别提高4.7%和3.4%,土壤速效钾分别提高3.0%和3.8%,土壤有机质分别提高7.1%和10.9%,且在土壤有效氮和有机质方面均达到了显著水平(P<0.05);T2处理的土壤有效氮、有效磷、速效钾和有机质含量较上一年分别提高35.7%、5.3%、2.5%和2.0%。两年试验初步表明使用炭吸附聚谷氨酸在减施30%化肥基础上可提高作物产量,提升土壤肥力。

【Abstract】 In order to explore the effect of carbon-adsorbed polyglutamic acid on soil nutrients and crop yield under the condition of weight loss,three treatments were set up in the field for two consecutive years:,CK:conventional fertilization,i.e.compound fertilizer 750 kg·hm-2;T1:30%chemical fertilizer,i.e.compound fertilizer 525 kg·hm-2;T2:30% chemical fertilizer plus carbon-adsorbed polyglutamic acid,i.e.compound fertilizer525 kg·hm-2 and spraying carbon.The yield of maize and wheat under different treatments was compared.Soil samples of 0-20 cm were taken after maize matured to determine soil nutrient status.The results showed that the average yield of maize and wheat increased by 3.2%,8.1%,9.9% and 42.0% respectively in 2017 and2018,4.7% and 3.4% respectively in soil available nitrogen,3.0% and 3.8% in soil available potassium,7.1% and 10.9%in soil organic matter,respectively,compared with the control,and reached significant levels in soil available nitrogen and organic matter(P<0.05).The contents of available nitrogen,available phosphorus,available potassium and organic matter in soil increased by 35.7%,5.3%,2.5% and 2.0% respectively compared with the previous year.The two-year experiment preliminarily showed that the use of carbon-adsorbed polyglutamic acid could improve crop yield and soil fertility on the basis of reducing the application of30%chemical fertilizer.

【基金】 国家水体污染控制与治理科技重大专项(2015ZX07204日002)
  • 【文献出处】 黑龙江农业科学 ,Heilongjiang Agricultural Sciences , 编辑部邮箱 ,2019年07期
  • 【分类号】S158.3
  • 【被引频次】6
  • 【下载频次】235
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