| 施肥对日光温室黄瓜和土壤硝酸盐含量的影响 |
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| 引用本文： | 徐福利,梁银丽,张成娥,杜社妮,陈志杰.施肥对日光温室黄瓜和土壤硝酸盐含量的影响[J].植物营养与肥料学报,2004,10(1):68-72. |
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| 作者姓名： | 徐福利 梁银丽 张成娥 杜社妮 陈志杰 |
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| 作者单位： | 1.中国科学院水利部西北农林科技大学水土保持研究所 陕西杨凌712100; |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | 通过田间试验研究了不同施肥对日光温室黄瓜NO2--N和NO3--N含量和土壤NO3--N以及黄瓜产量的影响。结果表明,在黄土高原黄绵土上,施N400kg.hm2和P2O5250kg.hm2,黄瓜生长期间,NO3--N含量变化与黄瓜的生长发育阶段关系密切,黄瓜结瓜前020和2040cm土层NO3--N含量较高,随黄瓜生长速度加快和结瓜盛期的到来,土壤NO3--N含量降低;黄瓜收获后,NO3--N含量又有增加。不同施肥种类比较,施用化肥40160cm土层NO3--N的累积和淋洗量最大,施用沼肥其累积和淋洗量小于施用化肥,而施用有机肥(牛粪)NO3--N的累积和淋洗量小于施用沼肥。采用叶面喷施尿素和有机钾肥,可以减少化肥和有机肥用量,从而降低土壤剖面0200cmNO3--N的累积。使用沼肥、叶面肥的黄瓜产量都明显高于不施肥和NP化肥处理。
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| 关 键 词： | 日光温室 黄瓜 施肥 NO3--N |
| 文章编号： | 1008-505X(2004)01-0068-05 |
| 修稿时间： | 2002年11月4日 |
Effect of fertilization on distribution of nitrate in cucumber and soil in sunlight greenhouse |
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| XU Fu-li,LIANG Yin-li,ZHANG Cheng-e,DU She-ni,CHEN Zhi-jie.Effect of fertilization on distribution of nitrate in cucumber and soil in sunlight greenhouse[J].Plant Nutrition and Fertilizer Science,2004,10(1):68-72. |
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| Authors: | XU Fu-li LIANG Yin-li ZHANG Cheng-e DU She-ni CHEN Zhi-jie |
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| Affiliation: | 1.Inst. of Soil and Water Conser.;CAS and MWR;Northwest Sci-Tech Univ. of Agric. and Forestry;Yangling;Shaanxi 712100;China; |
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| Abstract: | A field experiment was conducted in sunlight greenhouse to study the effect of fertilization on NO~-_2-N and NO~-_3-N contents of cucumber, NO~-_3-N content in soil, and cucumber yield. The result shown that, application of N 400kg/hm~2 and P_2O_5 250 kg/hm~2, the NO~-_3-N content in 0-20 and 20-40 cm soil layers related with the growth and developing stage of cucumber during the cucumber growth period under condition of Huangmian soil on Loess Plateau. The NO~-_3-N content was relatively higher before fruiting stage, however, the NO~-_3-N content became lower with the cucumber growing developing and increased after harvest in 0-20 and 20-40cm soil layers. After harvest the cucumber, the NO~-_3-N accumulation and leaching in 40-160cm soil profile was highest by using chemical fertilizer, lower by using methane and lowest by using manure. Foliage dressing by urea and organic K during cucumber growth period could reduce the rates of fertilizer and manure and decreased the NO~-_3-N content in 0-200cm soil layer. The cucumber yield was higher by using methane and foliage spray of urea and organic K than that application of NP fertilizers and without fertilizers. |
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| Keywords: | NO-3-N |
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