| 钾肥对油菜植株养分及种子产量品质的影响 |
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| 引用本文： | 郭庆元,李志玉,涂学文,涂运昌,段素敏.钾肥对油菜植株养分及种子产量品质的影响[J].中国油料作物学报,1990(4). |
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| 作者姓名： | 郭庆元 李志玉 涂学文 涂运昌 段素敏 |
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| 作者单位： | 中国农科院油料作物研究所
(郭庆元，李志玉，涂学文，涂运昌)，湖北大学(段素敏) |
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| 摘 要： | 本文通过马肝泥水稻长期定位施肥试验及灰潮土复混肥田间试验表明:速效磷钾含量较低的马肝泥水稻土,施钾肥显著促进油菜植株N、P、K养分与干物质积累,提高根、茎、角壳含K量(籽粒含K较稳定),增加角果数;与氮磷配合施钾显著提高油菜籽产量。而土壤速效磷钾中上等的灰潮土,与氮磷配合施钾,籽粒产量虽有增加,但差异不显著,植株N、P、K含量亦无明显变化。钾肥提高菜籽含油量和油酸含量,降低芥酸含量,硫甙含量亦有降低。
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| 关 键 词： | 油菜 钾肥 养分吸收 产量 品质 |
THE EFFECTS OF POTASSIUM ON PLANT NUTRITION YIELD QUALITY OF RAPESEED |
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| Guo Qingyuan Li Zhiyu Duan Sumin.THE EFFECTS OF POTASSIUM ON PLANT NUTRITION YIELD QUALITY OF RAPESEED[J].Chinese Journal of Oil Crop Sciences,1990(4). |
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| Authors: | Guo Qingyuan Li Zhiyu Duan Sumin |
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| Abstract: | In this experiment was studied effect of potassium on yield, quality and nutrition of rapeseed.The experiment carried out under different fertilizers and in Magann paddy soil and calcareous alluvial soil.The results showed that the potash fertilizer improved potassium nutrition of rapeseed, encou ranged rape plants better absorb nitrogen and phosphate from soil and in crsased effective pod numbers yield .It is significant role for incresing seed yield, when potash was applied together with nitrogen and phosphorous under the condition of deficient available potash in soil .But it isn't significant for increasing yield and absorption of NPK, if available phosphate and potash in soil were rich.Potash fertilizer not only can increase oil content and oleic acid in rapeseed, but also can decrease erucic acid and glucosinolate. |
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| Keywords: | Rapeseed Potash fertilizer Yield Quality Plant nutrition |
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