| 南疆棉花生物量积累对氮肥的响应 |
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| 引用本文： | 罗新宁,陈冰,张巨松,蒋平安,秦勇,罗章,尚云潭.南疆棉花生物量积累对氮肥的响应[J].新疆农业科学,2008,45(Z2). |
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| 作者姓名： | 罗新宁 陈冰 张巨松 蒋平安 秦勇 罗章 尚云潭 |
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| 基金项目： | 国家科技支撑计划，新疆维吾尔自治区重大科技专项 |
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| 摘 要： | 在南疆生态条件下对不同氮素水平(337.5、450、562.5、675和787.5kg/hm2尿素)处理下的棉花生物量积累进行了大田试验,结果表明棉花干物重积累符合Logistic曲线模型,棉花生物量增长对氮肥反应敏感,不同的施肥量造成棉花生物量积累快速生长期的起始、终止日不同,使快速生长期内生物量积累的平均速率、最大速率等参数发生改变,从而影响营养生长和生殖生长进程,这是产量形成差异的主要原因;施入尿素562.5kg/hm2时,棉花最先进入快速生长期,快速生长期内生物量积累的平均速率、最大速率高于其它处理,特征参数协调,产量最高。
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| 关 键 词： | 棉花 生物量积累 氮肥响应 |
Effect of Biomass Accumulation of Cotton on Nitrogen Fertilizer in the South of Xinjiang |
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| LUO Xin-ning,Chen Bing,ZHANG Ju-song,Jiang Ping-an,QIN Yong,LUO Zhang,SHANG Yun-tan.Effect of Biomass Accumulation of Cotton on Nitrogen Fertilizer in the South of Xinjiang[J].Xinjiang Agricultural Sciences,2008,45(Z2). |
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| Authors: | LUO Xin-ning Chen Bing ZHANG Ju-song Jiang Ping-an QIN Yong LUO Zhang SHANG Yun-tan |
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| Abstract: | Field experiments were conducted to analyze the dynamic accumulation of biomass of cotton under different nitrogen levels (337.5,450,562.5,787.5 and 480 kg Urea per hectare) in the south of Xinjiang. The result indicated that dynamic accumulation model of dry matter of cotton, and it's potions could be described by Logistic equation. The accumulation of dry matter was sensitive to nitrogen level. Different treatments changed date of biomass accumulation. |
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| Keywords: | cotton biomass accumulation nitrogen applied levels |
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