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水旱轮作对土壤性状及作物产量的影响 |
Effects of Paddy-upland Rotation on the Characteristics of Soils and Crop Yields |
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DOI: |
中文关键词: 轮作 土壤 pH 电导率 养分 产量 |
英文关键词:Key words: Rotation Soil pH Electric conductivity Nutrients Yields |
基金项目:现代农业产业技术体系建设专项资金资助项目(CARS-25);2014年浙江省“三农六方”农业科技创新项目。 |
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中文摘要: |
为改善设施土壤理化性状,提高作物产量,以浙南地区常年种植水稻田块、常年大棚种植番茄田块及水稻—大棚番茄轮作田块为调查对象,研究了不同种植方式对土壤养分、pH、土壤电导率及作物产量的影响。结果表明:与大棚常年连作番茄田块比较,轮作田块使土壤pH上升了0.9,土壤电导率下降了66.2%,土壤中水溶性总盐含量下降了64.7%。轮作后每667m2番茄产量提高8.3%,效益增加14.2%,说明番茄与水稻轮作可明显降低土壤盐分含量,缓解土壤酸化,提高作物产量。 |
英文摘要: |
Abstract: The roles of enhancing crop yields and improving the soil characteristics in rice-vegetable rotationsystem were investigated. The nutrients of soils, pH value, electric conductivity of soils and crops (tomato) yieldswere characterized in year-along rice paddies, greenhouse tomato fields and perennial rice-crop rotation fieldsin the area of South Zhejiang. As compared with successive tomato cultivation soils, the results showed that pHvalue of soil in rice-tomato rotation fields increased by 0.9, and the electric conductivity of soil decreased by66.2%, and water soluble salts diminished by 64.7%. The yield of tomato was improved by 8.3 % per 667 m2 andthe profit was increased by 14.2%. To summarize, rice-tomato rotation system can decrease the content of totalsalts content, alleviate soil acidification and improve the tomato yields. |
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