杂交油菜机械化直播适宜定苗密度研究 |
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引用本文: | 徐小冰,张明刚.杂交油菜机械化直播适宜定苗密度研究[J].耕作与栽培,2014(3):10-12. |
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作者姓名: | 徐小冰 张明刚 |
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作者单位: | 绥阳县农牧局,贵州绥阳563300 |
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摘 要: | 以杂交油菜黔油30号为材料,在绥阳县开展了对杂交油菜机械化直播适宜定苗密度的研究.结果表明:定苗密度为30万株/hm2产量最高,单产达2446kg/hm2,适宜的定苗密度范围为22.5万~30万株/hm2,实收产量与定苗密度间有显著的一元二次回归关系y=-0.272x2+14.48x+2261.6,预测杂交油菜机械化直播最佳密度为26.60万株/hm2.
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关 键 词: | 定苗密度 杂交油菜 机械化直播 |
Study on Appropriate Planting Density of Mechanical Seeded Hybrid Rape |
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Institution: | XUE Xiao--bing, ZHANG Ming--gang (Auiyang Agricultural Bureau, Suiyang, Guizhou 563300, China) |
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Abstract: | Using hybrid rape cultivar Qianyou 30 as test material, appropaiate planting density of mechanical seeded techniques were studied in Suiyang. The results showed that planting density was 300000plants/hm2, the yield was highest, it's 2446kg/ hm2 , the appropriate planting density is 225000--300000plants/hm2, regression relation of yield and planting density is y = -0. 272x2 +14. 48x+2261.6, the best planting density was 266000plants/hm2. |
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Keywords: | planting densiyl hybrid rape mechanical seeded techniques |
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