| 增施微生物肥对膜下滴灌玉米根区土壤微生物、酶活性的影响 |
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| 引用本文： | 李全胜,王国栋,谢宗铭,刘政,梁飞.增施微生物肥对膜下滴灌玉米根区土壤微生物、酶活性的影响[J].玉米科学,2019,27(4):141-147. |
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| 作者姓名： | 李全胜 王国栋 谢宗铭 刘政 梁飞 |
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| 作者单位： | 新疆农垦科学院生物技术研究所/作物种质创新与基因资源利用兵团重点实验室, 新疆 石河子 832000,新疆农垦科学院农田水利与土壤肥料研究所, 新疆 石河子 832000,新疆农垦科学院生物技术研究所/作物种质创新与基因资源利用兵团重点实验室, 新疆 石河子 832000,新疆农垦科学院植物保护研究所, 新疆 石河子 832000,新疆农垦科学院农田水利与土壤肥料研究所, 新疆 石河子 832000;长安大学环境科学与工程学院, 西安 710064 |
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| 基金项目： | 兵团科技攻关与成果转化项目（2016AC008）、国家重点研发计划（2017YFD0201900）、国家自然科学基金资助项目（31460550）、兵团科技攻关与成果转化项目（2016AD029） |
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| 摘 要： | 以玉米品种郑单958为材料,通过田间试验,研究微生物肥料对玉米根区土壤微生物、酶活性及玉米产量等指标的影响。结果表明,增施微生物肥增加了整个生育期内农田土壤微生物的数量,且抽雄期玉米窄行、根际土壤细菌和放线菌数量均显著高于常规施肥和不施肥处理(p0.05)。增施微生物肥后,抽雄期窄行、根际、宽行土壤有机质含量和脲酶活性显著提高(p0.05),分别较常规施肥处理增加24.05%、21.14%、18.61%和14.56%、9.49%、17.29%,较不施肥处理显著增加34.98%、22.03%、19.96%和17.48%、13.22%、15.08%。增施微生物肥显著提高玉米产量,较常规施肥和不施肥处理分别增加13.45%和34.97%(p0.05)。增施微生物肥可改善膜下滴灌玉米根区土壤微生物区系结构,提高土壤酶活性,增强玉米对土壤养分的吸收,进而提高玉米干物质积累,最终获得高产。
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| 关 键 词： | 玉米 微生物肥 土壤微生物 土壤酶活性 产量 |
| 收稿时间： | 2018/7/30 0:00:00 |
Effects of Additional Microbial Fertilizer on Soil Microbe Amount and Soil Enzyme Activity in Maize under Mulched Drip Irrigation |
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| LI Quan-sheng,WANG Guo-dong,XIE Zong-ming,LIU Zheng and LIANG Fei.Effects of Additional Microbial Fertilizer on Soil Microbe Amount and Soil Enzyme Activity in Maize under Mulched Drip Irrigation[J].Journal of Maize Sciences,2019,27(4):141-147. |
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| Authors: | LI Quan-sheng WANG Guo-dong XIE Zong-ming LIU Zheng and LIANG Fei |
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| Institution: | Key Laboratory of Crop Germplasm Enhancement and Gene Resources Utilization of Xinjiang Production Construction Group/Biotechnology Research Institute, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi 832000,Institute of Farmland Water Conservancy and Soil-fertilizer, Xinjiang Academy of Agricultural Reclamation Sciences, Shihezi 832000,Key Laboratory of Crop Germplasm Enhancement and Gene Resources Utilization of Xinjiang Production Construction Group/Biotechnology Research Institute, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi 832000,Institute of Plant Protection, Xinjiang Academy of Agricultural Reclamation Sciences, Shihezi 832000 and Institute of Farmland Water Conservancy and Soil-fertilizer, Xinjiang Academy of Agricultural Reclamation Sciences, Shihezi 832000;School of Environmental Science and Engineering, Chang''an University, Xi''an 710054, China |
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| Abstract: | To test the effects of microbial fertilizer on maize production, we conducted field trials with maize cultivar Zhengdan958. There were three fertilizer treatments, conventional fertilization(CF), additional microbial fertilizer combined with conventional fertilization(MF) and without fertilizer application(WF). The amount of soil microbe, soil enzyme activity and maize grain yield were investigated. In MF, the amount of soil microbe were increased during the whole growth period. Especially at tasseling stage, the soil bacteria and actinomycetes in narrow row space and around maize roots were significantly increased. Moreover, when compared with CF and WF treatments, the soil organic matter content and enzyme were all increased in MF at tasseling stage. And the soil organic matter and urease activity showed 24.05% and 14.56%, 21.14% and 9.49%, 18.61 and 17.29% higher compared with CF, and showed 34.98% and 17.48%, 22.03% and 13.22%, 19.96% and 15.08% higher compared with MF in narrow row space, rhizosphere and wide row space, respectively. Additionally, maize grain yield in MF treatment increased 13.45% and 34.97% more than CF and WF, respectively. In all, additional microbial fertilizer application could increase maize yield through improving soil microbial community and increasing soil nutrients. |
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| Keywords: | Maize Microbial fertilizer Soil microorganisms Soil enzyme activity Yield |
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