| 化肥减施配施微生物菌剂对鲜食玉米生长和土壤肥力的影响 |
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| 引用本文： | 方 成,岳明灿,王东升,李伟明,徐 莉,陈小云,焦加国.化肥减施配施微生物菌剂对鲜食玉米生长和土壤肥力的影响[J].土壤,2020,52(1):743-749. |
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| 作者姓名： | 方 成 岳明灿 王东升 李伟明 徐 莉 陈小云 焦加国 |
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| 作者单位： | 南京农业大学资源与环境科学学院,南京市蔬菜科学研究所,南京市蔬菜科学研究所,南京市蔬菜科学研究所,南京农业大学资源与环境科学学院,南京农业大学资源与环境科学学院,南京农业大学资源与环境科学学院 |
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| 基金项目： | 国家重点研发计划项目,江苏省优势学科 |
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| 摘 要： | 本试验研究了化肥减施配施EM微生物菌剂对鲜食玉米产量、品质和土壤肥力的影响。共设置不施加任何肥料和菌剂（CK）、全量化肥（依据当地化肥施用量，CF）、减施40%化肥（RCF）、减施40%化肥和灌施加喷施EM菌剂（RCF+EM）、减施40%化肥和灌施加喷施清水（RCF+W）5个处理。结果表明，RCF+EM处理的玉米产量高于CF处理，但未达到显著水平；玉米可溶性糖、可溶性蛋白和维生素C含量都高于CF处理，其中可溶性蛋白含量达到显著水平，增幅为11.79%；RCF+EM处理下的土壤pH、有机质、速效养分和微生物碳氮均高于CF处理，其中pH、速效钾和微生物氮达到显著水平，增幅依次是20.08%、15.81%、59.96%；RCF+EM处理的土壤真菌数量显著低于CF处理，而细菌、放线菌数量则显著高于CF处理，增幅分别达到153.42%和124.17%。综上，减施化肥配施EM菌剂对使鲜食玉米产量无显著影响，但可显著提高果实品质，改善土壤肥力、提高土壤微生物菌群数量。
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| 关 键 词： | 化肥减施 EM菌剂 产量 品质 土壤养分 土壤微生物量 |
| 收稿时间： | 2019/3/17 0:00:00 |
| 修稿时间： | 2019/7/16 0:00:00 |
Effects of Fertilizer Reduction Combined with Microbial Agent Application on Growth and Soil Fertility of Fresh Corn |
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| FANG Cheng,YUE Mingcan,WANG Dongsheng,LI Weiming,XU Li,CHEN Xiaoyun,JIAO Jiaguo.Effects of Fertilizer Reduction Combined with Microbial Agent Application on Growth and Soil Fertility of Fresh Corn[J].Soils,2020,52(1):743-749. |
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| Authors: | FANG Cheng YUE Mingcan WANG Dongsheng LI Weiming XU Li CHEN Xiaoyun JIAO Jiaguo |
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| Institution: | College of Resources and Environmental Science,Nanjing Agricultural University,Nanjing Institute of Vegetable Science,Nanjing Institute of Vegetable Science,Nanjing Institute of Vegetable Science,College of Resources and Environmental Science,Nanjing Agricultural University,College of Resources and Environmental Science,Nanjing Agricultural University,College of Resources and Environmental Science,Nanjing Agricultural University |
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| Abstract: | In this study, effects of reduced chemical fertilizers application with Effective Microbial (EM) agents on fresh corn yield, quality and soil property were evaluated. The designed treatments include: no fertilizer (CK); full chemical fertilizer application according to local fertilizer application rate (CF); 60% chemical fertilizer application (RCF); 60% chemical fertilizer application combined with EM agents (RCF+EM); 60% chemical fertilizer application combined with water (RCF+W). The results showed that the yield of corn was higher under the RCF+EM treatment than that under the CF treatment, although the difference was not significant (P<0.05); The soluble sugar, soluble protein and vitamin C content of the fresh corn were higher under RCF+EM treatment than that under CF treatment, especially the soluble protein was significantly higher, with 11.79% higher than that under CF treatment (P<0.05); The pH, organic matter, available nutrients and microbial carbon and nitrogen in the soils were also increased under the RCF+EM treatment compared to that under the CF treatment, and the pH, available potassium and soil microbial biomass nitrogen were 20.08%, 15.81% and 59.96% higher under the RCF+EM treatment than that under the CF treatment (P<0.05).The number of fungi in the soil treated with RCF+EM was significantly lower than that under CF treatment, while the number of bacteria and actinomycetes were significantly higher, with 153.42% and 124.17% increment respectively compared to the CF treatment. Therefore, the treatment with 60% chemical fertilizer application combined with EM agents could achieve the same yield of fresh corn with the full chemical fertilizer application treatment, at the same time significantly improve the quality of the corn, in addition, soil fertility and the number of soil microbial increased. |
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| Keywords: | Fertilizer application EM microbial agent yield and quality soil nutrient soil microbial quantity |
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