不同施氮量對高粱生長·生物量和蜀黍氰苷積累的影響

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摘要以遼糯11高粱為供試材料，研究了5個不同施氮水平對其生長發(fā)育、生物量及蜀黍氰苷積累的影響。結(jié)果表明，不同施氮水平對株高的影響不顯著，隨著施氮量的增加，高粱的莖粗、葉長、葉寬及鮮質(zhì)量、干質(zhì)量等表現(xiàn)為先增大后穩(wěn)定，根、莖、葉等部位中的蜀黍氰苷含量隨著施氮量的增加先增加后降低。

關(guān)鍵詞高粱；氮肥；蜀黍氰苷；生長；生物量

中圖分類號S 514文獻標識碼A文章編號0517-6611（2023）24-0150-03

doi：10.3969/j.issn.0517-6611.2023.24.033

Effects of Different Nitrogen Rates on Sorghum Growth， Biomass and Cyanoside Accumulation

LI Songbai， ZHOU  Hanling， HU Jiao et al

（Wuliangye  Co.， Ltd.， Yibin， Sichuan 644000）

AbstractLiaonuo 11 sorghum was used as experimental material to study the effects of 5 different nitrogen application levels on its growth， biomass and cyanoside accumulation. The results showed that different nitrogen application levels had no significant effect on plant height. With the increase of nitrogen application rate， the stem diameter， leaf length， leaf width， fresh weight and dry weight of sorghum increased first and then stabilized. The content of zea cyanoside in roots， stems and leaves also increased first and then decreased with the increase of nitrogen application rate.

Key wordsSorghum;Nitrogenous fertilizer;Cyanoside;Growth;Biomass

高粱是禾本科高粱屬作物，因具有耐旱、耐瘠薄、適應性強、生長快、營養(yǎng)豐富等特點，栽培范圍較廣，是重要的谷物和牧草作物。（剩余6119字）