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| 氮、磷、钾肥对大葱商品性状及其产量的影响 | |
| 引用本文： | 林昌华,白由路,罗国安,谢祝捷.氮、磷、钾肥对大葱商品性状及其产量的影响[J].植物营养与肥料学报,2009,15(3):649-655. |
| 作者姓名： | 林昌华 白由路 罗国安 谢祝捷 |
| 作者单位： | 1.韶关学院,英东生物工程学院,广东韶关 512005; |
| 基金项目： | 上海市科技兴农重点攻关项目 |
| 摘 要： | 应用311-A拟饱和最优回归设计，通过氮、磷、钾肥配比田间试验，建立大葱施用氮、磷、钾肥对大葱株高、葱白直径、产量及施肥利润的效应函数。结果表明，株高极大值氮、磷、钾优化施肥组合为:N 371.30、P2O5 157.50、K2O 309.58 kg/hm2，此时的株高为92.88 cm；葱白直径极大值氮、磷、钾优化施肥组合为:N 350.63、P2O5 157.50、K2O 225.00 kg/hm2，此时葱白的直径为1.769 cm；最高产量的氮、磷、钾优化施肥组合为:N 394.08、P2O5 193.62、K2O 225.00 kg/hm2，此时产量为55805.06 kg/hm2；最佳施肥利润的氮、磷、钾优化施肥组合为:N 391.35、P2O5 192.97、K2O 225.00 kg/hm2，其最佳施肥利润达136865.60元/hm2，经济产量达55802.74 kg/hm2。 |
| 关 键 词： | 平衡施肥 大葱 商品性状 产量 效应模式 |
| 收稿时间： | 2008-03-14 |
Effects of N,P and K application on merchandise properties and yields of welsh-onion(Allium fistulosukm) |
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| LIN Chang-hua,BAI You-lu,LUO Guo-an,XIE Zhu-jie.Effects of N,P and K application on merchandise properties and yields of welsh-onion(Allium fistulosukm)[J].Plant Nutrition and Fertilizer Science,2009,15(3):649-655. | |
| Authors: | LIN Chang-hua BAI You-lu LUO Guo-an XIE Zhu-jie |
| Institution: | 1.College of Yingdong Bioengineering,Shaoguan University,Shaoguan 512005,China; 2 Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Science,Beijing 100081,China; 3 College of Natural Resources and Environmental Science,South China Agricultural University,Guangzhou 510642,China; 4 Environmental Science Research Institute,Shanghai Academy of Agricultural Sciences,Shanghai 201106,China; 5 Horticultural Science Research Institut |
| Abstract: | The effects of N, P and K application on stem length, stalk width, yield of welsh onion(Allium fistulosukm) and benefit of the fertilization were studied in the field by using the 311-A optimum regression design of supposed saturation. The results show that the optimum N, P and K application amounts for the maximum stem length of welsh-onion (92.88 cm) are N 371.30，P2O5 157.50，and K2O 309.58 kg/ha；the optimum application amounts for the maximum stalk width of the crop (1.769 cm) are N 350.63, P2O5 157.50, and K2O 225.00 kg/ha; and those for the maximum yield (55805.06 kg/ha) are N 394.08, P2O5 193.62，and K2O 225.00 kg/ha. The optimum N, P and K application amounts for the best fertilization benefit are N 391.35, P2O5 192.97, and K2O 225.00 kg/ha. The best fertilization benefit is about 136865.6 Yuan/ha with a yield of 55802.74 kg/ha. |
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