| 连续3年玉米秸秆还田对土壤理化性状及作物产量的影响 |
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| 引用本文： | 丛艳静.连续3年玉米秸秆还田对土壤理化性状及作物产量的影响[J].中国农学通报,2018,34(17):95-98. |
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| 作者姓名： | 丛艳静 |
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| 作者单位： | 永安市土肥站 |
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| 基金项目： | 中央财政国家耕地质量保护与提升项目(2011，2012，2013)。 |
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| 摘 要： | 秸秆还田能增加土壤有机质含量,提高土壤养分,降低土壤容重,改善土壤理化性状。本研究结果表明,与秸秆还田前土壤的基础背景值和常规施肥的无秸秆还田(CK)相比,常规施肥实施玉米秸秆还田能有效提高土壤养分含量,土壤有机质、碱解氮、有效磷、速效钾含量均有不同程度增加,土壤容重下降,土壤理化性状得到改善,后作莴苣产量增加,同时能有效减少秸秆焚烧带来的环境污染问题,值得大力推广。
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| 关 键 词： | 种植密度 种植密度 播期 施肥 青稞 灌浆特性 |
| 收稿时间： | 2017/6/21 0:00:00 |
| 修稿时间： | 2017/9/1 0:00:00 |
Maize Straw Returning for Three Consecutive Years: Effects on Soil Physical and Chemical Properties and Crop Yield |
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| Abstract: | Straw returning could increase soil organic matter content, improve soil nutrients, reduce soil bulk density, and enhance soil physical and chemical properties. In this paper, the effects of corn straw returning on soil physical and chemical properties and crop yield were studied by fixed-point monitoring method. The results showed that compared with the soil basal background value before returning and the conventional fertilization without straw (CK), conventional fertilization with straw returning could effectively improve soil nutrients content; soil organic matter, available nitrogen, available phosphorus and available potassium content increased in different degrees; soil bulk density decreased, soil physical and chemical properties were improved, the after crop lettuce yield increased. In addition, corn straw returning could effectively reduce the environmental pollution caused by straw burning, and was worth popularizing. |
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| Keywords: | maize straw Straw returning physicochemical property crop yield Soil |
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