干旱冷凉区红芸豆施肥效应与养分吸收研究 |
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引用本文: | 韩彦龙,晋凡生. 干旱冷凉区红芸豆施肥效应与养分吸收研究[J]. 中国农学通报, 2016, 32(15): 73-78. DOI: 10.11924/j.issn.1000-6850.casb16020042 |
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作者姓名: | 韩彦龙 晋凡生 |
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作者单位: | 山西省农业科学院旱地农业研究中心,山西省农业科学院旱地农业研究中心 |
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基金项目: | 国家科技支撑计划,杂豆高效生产关键技术研究与示范(2014BAD07B05),旱作农业作物高效用水山西省科技创新重点团队 (2012091022) |
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摘 要: | 应用“3414”试验方案,研究了干旱冷凉区红芸豆施肥效应及红芸豆养分吸收状况。结果表明:施肥处理红芸豆产量显著高于不施肥处理,以N2P1K1处理的红芸豆产量和产投比最高。施用氮、磷、钾肥增产率分别为16.4%、8.6%和12.7%,对产量影响依次为:N>K>P。三元二次方程拟合结果表明,本试验条件下,氮(N)、磷(P2O5)、钾(K2O)肥最佳经济施肥量分别为99.0、140.6、108.0 kg/hm2。红芸豆生育期地力贡献率为75.7%,供试土壤肥力中等,施肥效果明显。合理施肥可促进红芸豆对N、P和K的吸收。
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关 键 词: | 土地利用 土地利用 时空变化 汉江生态经济带 |
收稿时间: | 2016-02-15 |
修稿时间: | 2016-05-07 |
Fertilization Effect and Nutrients Absorption of Red Kidney Bean in Dry and Cold Area |
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Abstract: | In this study, a “3414” experiment of red kidney bean had been arranged on a representative soil type in dry and cold area. The results showed that the yields of the fertilization treatments were significantly higher than those of the treatments without fertilization, The yields and output-input ratio of the N2P1K1treatment was the highest. The red kidney bean yield increment rates by the application of N, P and K fertilizer were separately 16.4%、8.6% and 12.7%,and the effects on the yield was N > K > P. Under the condition of this experiment,the fitting results of the developed quadratic equations in three variables showed that the application amounts of N, P2O5 and K2O for the economic optimum yield were 99.0, 140.6 and 108.0 kg/hm2.At the growing stage of red kidney bean, the soil was middle fertility and the contribution of land capability reached 75.7%. Balanced fertilization could promote the absorption of N, P and K of red kidney bean. |
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Keywords: | red kidney bean 3414 experiment yield fertilizer effect |
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