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桃源县棉花夏播短季轻简化栽培模式推广研究

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我国棉花需求不断增长,但受耕地面积减少和粮食安全压力的影响,棉花种植面积难以大幅提高,因此,提高棉花单产水平对满足国内棉花需求具有重要意义。常德地区作为湖南省棉花生产大市,传统的宽行稀植、大棵壮株、大水大肥精细化栽培模式虽然单产较高,但劳动力投入大,难以适应现代农业发展趋势。为探索提高棉花单产水平的新模式,在桃源县开展了调查和试验研究。对2023年桃源县棉花生产示范点进行调查,了解不同品种、栽培方式、种植密度等情况,并调查了2020-2022年棉农种植成本、产量、收入和机械化程度。在生产示范区开展了常规与短季轻简化模式的对比试验。结果表明:虽然短季模式下单株结铃数较少,但由于种植密度提高,单位面积产量高于常规模式。在8元/kg收购价时,短季模式单位面积净收益比常规高168元。综合来看,棉花夏播短季轻简化栽培模式有望提高常德地区棉花单产和棉农收益,适应了农村劳动力成本上升趋势,兼顾粮棉赛季安排,具有较好的推广前景,但在实际推广中需结合当地实际情况灵活调整。
Promotion Study of Gossypium hirsutum L.Summer Sowing Short-Season Light Simplified Cultivation Mode in Taoyuan County
The demand for Gossypium hirsutum L.keeps rising as a result of the social and economic advance-ments in our nation.However,it is challenging to greatly expand the Gossypium hirsutum L.planting area because of the decrease in the amount of farmed land and the strain of ensuring food security.To satisfy domestic Gos-sypium hirsutum L.demand,it is crucial to raise Gossypium hirsutum L.production per unit area.Changde,in Hunan province,is a prominent Gossypium hirsutum L.producing city.The old refined cultivation model with its"wide rows and sparse planting,large trees and strong plants,and large amounts of water and fertilizer"has a high yield per unit area,but it is labor-intensive and hard to modify to fit the current agricultural growth trend.In Taoyuan County,this study performed surveys and experimental experiments to investigate novel methods for rai-sing Gossypium hirsutum L.yield levels.Firstly,the Gossypium hirsutum L.production demonstration sites in Taoyuan County in 2023 were investigated to understand the different varieties,cultivation methods,planting den-sity,etc.,and the planting cost,yield,income and mechanization degree of Gossypium hirsutum L.farmers from 2020 to 2022 were investigated.Next,in the production demonstration areas,a comparison test between standard and short-season light and simplified versions was conducted.The findings demonstrated that although while the short-season model produced fewer bolls per plant,the higher planting density under the model led to a higher yield per unit area than the conventional model.The net income per unit area of the short-season model is 168 yuan more than that of the conventional model when the purchasing price is 8 yuan per kilogram.On the whole,the short season and light and simplified cultivation mode of Gossypium hirsutum L.summer sowing is expected to improve the Gossypium hirsutum L.yield per unit area and the income of Gossypium hirsutum L.farmers in Changde,adapt to the rising trend of rural labor costs,take into account the grain and Gossypium hirsutum L.sea-son arrangement,and have a good promotion prospect,but in the actual promotion,flexible adjustment should be combined with the actual local situation.

Gossypium hirsutum L.summer sowing and short seasonlight and simplified cultivationyield

刘皓然、杜云安、陈璐、谢陈灵、屈成

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常德职业技术学院,湖南 常德 415000

常德市桃源县经济作物站,湖南常德 415700

湖南生物机电职业技术学院,湖南长沙 410000

棉花 夏播短季 轻简化栽培 单产

常德职业技术学院一般项目湖南省教育厅课题一般项目

ZY230522C0727

2024

绿色科技
花木盆景杂志社

绿色科技

影响因子:0.365
ISSN:1674-9944
年,卷(期):2024.26(11)