| 杨明花,姜益娟,聂万林,郑德明.施磷量对膜下滴灌杂交棉氮磷钾养分吸收利用及产量的影响[J].干旱地区农业研究,2010,28(5):75~78 |
| 施磷量对膜下滴灌杂交棉氮磷钾养分吸收利用及产量的影响 |
| Effect of phosphorus rates on nitrogen, phosphorus and potassium uptake and utilization and yield of hybrid cotton with drip irrigation under membrane |
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| DOI：10.7606/j.issn.1000-7601.2010.05.14 |
| 中文关键词: 杂交棉 磷素 吸收 利用 产量 |
| 英文关键词:hybrid cotton phosphorus uptake utilization yield |
| 基金项目:新疆自治区教委重点研究项目(XJEDU2007142) |
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| 中文摘要: |
| 通过南疆膜下滴灌田间小区试验，研究了施磷量分别为0（P0）、75(P1)、150(P2)、225(P3) kg/hm2对膜下滴灌杂交棉氮、磷、钾素的吸收、利用及产量的影响，以明确该区合理施磷量。结果表明：施用磷肥可以显著提高杂交棉的生物产量、经济产量及杂交棉整株总吸氮、磷、钾量；在不同施磷量处理之间的籽棉产量、氮磷钾吸收、利用率均呈P2＞P3＞P1＞P0的趋势。在本实验条件下，综合考虑磷肥利用率、籽棉产量、氮磷钾吸收的因素，杂交棉的合理施磷量应控制在150 kg/hm2左右。 |
| 英文摘要: |
| A field experiment was carried out to study the effect of phosphorus rates〔0(P0), 75(P1), 150(P2) and 225(P3) kg/hm2〕 on nitrogen, phosphorus and potassium uptake, utilization and yield of hybrid cotton with drip irrigation under membrane, so as to find out the reasonable phosphorus rates in this area. The results showed that: phosphorus rates could significantly increase biological yield, economic yield and total nitrogen, phosphorus and potassium uptake of hybrid cotton in maturity; The mutative trends of output of unginned cotton, nitrogen, phosphorus and potassium uptake, utilization ratio were P2>P3>P1>P0 under using different phosphorus fertilizer; Under our experiment condition, the phosphorus rates of hybrid cotton should be controlled at about 150 kg/hm2. |
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