有机肥对盐渍化耕地棉花干物质积累、养分吸收及产量的影响

发布时间：2018-06-10 06:44

本文选题：盐渍化耕地 + 棉花　；参考：《中国土壤与肥料》2017年02期

【摘要】：通过田间试验,研究不同有机肥对盐渍化耕地棉花干物质积累与养分吸收的影响。结果表明:增施有机肥可使棉花干物质的积累和养分吸收及产量有不同程度的提高,鸡粪表现的更为明显;苗期时,棉花干物质和氮磷钾积累量分别较对照高出161.8%、171.4%、116.3%和187.1%,花铃期干物质及氮磷钾积累量分别较对照高出118.9%、105.6%、57.14%和98.21%,吐絮期分别较对照高了34.3%、21.9%、60.0%和10.8%;产量较CK提高了6.4%。在有机肥对土壤电导率抑制作用方面,鸡粪在棉花各生育期表现较优。棉花干物质及氮磷钾积累分配规律为苗期和花铃期主要在叶中积累,吐絮期主要在铃中积累。
[Abstract]:The effects of different organic fertilizers on dry matter accumulation and nutrient absorption of cotton in salinized cultivated land were studied through field experiments. The results showed that the dry matter accumulation, nutrient absorption and yield of cotton could be increased in different degree by adding organic fertilizer, and chicken manure was more obvious at seedling stage. The accumulation of dry matter and nitrogen, phosphorus and potassium in cotton were 161.81.71% and 187.1% higher than that of the control, respectively. The accumulation of dry matter and nitrogen, phosphorus and potassium in flowering boll stage was higher than that in the control group by 118.95.67.14% and 98.21%, respectively. In the aspect of inhibition of soil electrical conductivity by organic fertilizer, chicken manure was better in cotton growth period. The accumulation and distribution of dry matter, nitrogen, phosphorus and potassium in cotton were mainly accumulated in leaves at seedling stage and flowering and boll stage, and mainly in boll at spitting stage.
【作者单位】：新疆农业大学草业与环境科学学院;
【基金】：新疆自治区“十二五”重大专项“盐渍化低产田生产力提升关键技术研发与示范”课题(201130106-2) 国家自然科学基金(31260499) 新疆自治区土壤学重点学科资助项目
【分类号】：S141;S562

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