| 水氮耦合对甜瓜氮素吸收与土壤硝态氮累积的影响 |
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| 引用本文： | 岳文俊,张富仓,李志军,邹海洋,高月.水氮耦合对甜瓜氮素吸收与土壤硝态氮累积的影响[J].农业机械学报,2015,46(2):88-96,119. |
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| 作者姓名： | 岳文俊 张富仓 李志军 邹海洋 高月 |
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| 作者单位： | 西北农林科技大学,西北农林科技大学,西北农林科技大学,西北农林科技大学,西北农林科技大学 |
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| 基金项目： | 国家高技术研究发展计划（863计划）资助项目（2011AA100504）和高等学校学科创新引智计划（111计划）资助项目（B12007） |
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| 摘 要： | 在西北干旱半干旱地区,设置3个水分水平和3个氮素水平,共9个处理,应用完全随机区组试验设计,研究不同水氮处理组合对温室甜瓜氮素吸收分配、产量及土壤硝态氮分布和累积的影响。试验结果表明:甜瓜成熟期地上部干物质量以及氮素累积量以中水中氮(W2N2)处理为最大,甜瓜采收后各处理硝态氮含量在0~15 cm土层内最高,随土层的加深硝态氮含量逐渐减小。0~60 cm土层内硝态氮累积量随施氮量的增加而增大,随灌水量的增加而减小。甜瓜产量随灌水量和施氮量的增加而提高,但是在高水和高氮条件下略有下降。滴灌施肥的施氮量和灌水量控制在N2(130 kg/hm2)和W2(1.0ETc)时,有利于提高甜瓜产量,是试验地区膜下滴灌条件下温室甜瓜生产中适宜的水氮组合。
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| 关 键 词： | 甜瓜 日光温室 水氮 干物质累积 氮素吸收 硝态氮 |
| 收稿时间： | 9/5/2014 12:00:00 AM |
Effects of Water and Nitrogen Coupling on Nitrogen Uptake of Muskmelon and Nitrate Accumulation in Soil |
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| Yue Wenjun,Zhang Fucang,Li Zhijun,Zou Haiyang and Gao Yue.Effects of Water and Nitrogen Coupling on Nitrogen Uptake of Muskmelon and Nitrate Accumulation in Soil[J].Transactions of the Chinese Society of Agricultural Machinery,2015,46(2):88-96,119. |
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| Authors: | Yue Wenjun Zhang Fucang Li Zhijun Zou Haiyang and Gao Yue |
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| Institution: | Northwest A&F University,Northwest A&F University,Northwest A&F University,Northwest A&F University and Northwest A&F University |
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| Abstract: | A greenhouse muskmelon variety was grown under mulched drip irrigation to investigate the effects of different water and nitrogen levels on nitrogen nutrient absorption, distribution and yield of greenhouse muskmelon, soil NO-3N distribution and accumulation, which can provide theoretical basis for high water-fertilizer use efficiency and the optimal regulation and control of greenhouse muskmelon. Muskmelon plants were subjected to three irrigation levels and three nitrogen levels, and totally were 9 treatments. Treatments were completely arranged according to randomization. Results showed that the above-ground dry matter accumulation and amounts of N accumulation were obtained in the treatment of W2N2 and the content of soil NO-3N was the highest in 0~15cm soil layer after the muskmelon harvest and the content of soil NO-3N decreased with the increase of soil depth. The accumulation of 0~60cm soil NO-3N increased with the increase of nitrogen rate and decreased with the increase of irrigation amount. The yield of muskmelon increased with the increase of irrigation amount and nitrogen rate except for the treatment of W3 and N3. It was concluded that the irrigation level W2 and nitrogen level N2 could be recommended as the best combination of water and nitrogen which can improve muskmelon yield in the production of muskmelon under drip irrigation with plastic film mulched in the experimental area. |
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| Keywords: | Muskmelon Solar greenhouse Water and nitrogen Dry matter accumulation Nitrogen assimilation Nitrate nitrogen |
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