| 鲁西南植棉区种植密度对蒜后直播短季棉农艺性状和产量的影响 |
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| 作者姓名： | 张桂花 赵中亭 樊海潮 张志恒 李顺 |
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| 作者单位： | 菏泽市农业科学院,山东菏泽 274000;菏泽市农业科学院,山东菏泽 274000;菏泽市农业科学院,山东菏泽 274000;菏泽市农业科学院,山东菏泽 274000;菏泽市农业科学院,山东菏泽 274000 |
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| 基金项目： | 山东省现代农业产业体系棉花产业创新团队资金支持项目 |
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| 摘 要： | 以鲁棉532为供试棉花品种,研究4个种植密度(7.5万株/hm2、8.25万株/hm2、9万株/hm2、9.75万株/hm2)对直播短季棉农艺性状和产量的影响。结果表明:随着种植密度的增加,棉花生育期延长,第一果枝节位和株高逐渐增高,果枝数、单株结铃数减少,铃重越轻;种植密度9万株/hm2时棉花的铃重、衣分、籽棉和皮棉产量最高,其次是8.25万株/hm2。鲁西南棉区蒜后直播短季棉早中熟棉花品种的种植密度在8.25万株/hm2与9万株/hm2之间为宜。旨在为鲁西南植棉区提高棉花机械化生产水平,降低生产成本和劳动强度,提高植棉的经济效益和棉农的植棉积极性。
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| 关 键 词： | 短季棉 种植密度 衣分 籽棉产量 |
Effect of Planting Density on Agronomic Character and Yield of Short-season Direct-Seeding Cotton in Southern Shandong Cotton Planting Area |
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| Authors: | Zhang Guihua Zhao Zhongting Fan Haichao Zhang Zhiheng Li Shun |
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| Institution: | (Heze Academy of Agricultural Sciences.,Heze Shandong,274000,China) |
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| Abstract: | The effects of four planting densities(75,000,82,500,90,000 and 97,500 plants/hm2)on the agronomic traits and yield of short-season direct seeding cotton were studied with Lumian 532 as the tested cotton variety.The results showed that with the increase of planting density and the extension of cotton growth period,the first fruit branch position and plant height gradually increased,the number of fruit branch and boll per plant decreased,and the boll weight was lighter.The planting density of cotton was 90,000 plants/hm2,and the boll weight,lint percentage,seed cotton and lint yield of cotton were the highest,followed by 82,500 plants/hm2.In the cotton region of southwest Shandong province,the planting density of the early and middle ripening varieties of short-season cotton after direct seeding of garlic should be between 82,500 and 90,000 plants/hm2.The aim is to provide reliable scientific basis for improving cotton mechanization production level,reducing production cost and labor intensity,improving economic benefit of cotton planting and cotton farmers’enthusiasm for cotton planting. |
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| Keywords: | Short season cotton Planting density Lint percentage Seed cotton yield |
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