免耕套稻种植模式的节水效能研究 |
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引用本文: | 李章林,朱卫彬,顾克礼.免耕套稻种植模式的节水效能研究[J].江苏水利,2014(5):5-8. |
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作者姓名: | 李章林 朱卫彬 顾克礼 |
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作者单位: | 扬州市水利局;扬州市江都区农田水利科学研究站;扬州克礼自然农业研究服务中心; |
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基金项目: | 江苏省水利科技项目(苏财农〔2012〕163号) |
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摘 要: | 针对水稻常规种植用水量大与我国水资源紧缺的矛盾,围绕节水栽培,以机插稻作为对照,研究共生套稻、套直播稻这两种免耕套稻种植模式的节水效能。结果表明,与耕耙作业的机插稻大田相比,免耕套稻减少灌溉次数44.4%,节省灌溉用水1/3,其中,共生套稻节水135.88 m3/亩,套直播稻节水170.37 m3/亩;免耕套稻全生育期耗水量比机插稻减少20.2%,平均日减少水分蒸发和流失24.4%,其日耗水量差异主要在大田分蘖期,机插稻日耗水量达10.99 mm,而免耕套稻平均日耗水量为8 mm左右,减少27.3%。
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关 键 词: | 免耕 共生套稻 套直播稻 机插稻 节水 |
Study on Water-saving Efficiency of No-Tillage Rice Planting Mode |
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Affiliation: | LI Zhanglin, ZHU Weibin, GU Keli (1. Water conservancy bureau in Yangzhou, Yangzhou 225000,Jiangsu; 2. Irrigation and water conservancy scientific research station in Jiangdu, Yangzhou 225000, Jiangsu ; 3. Keli Natural agricultural research service center, Yangzhou 225000, Jiangsu) |
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Abstract: | According to the conventional rice planting large water consumption and the shortage of China's water resources,the water saving cultivation, by machine transplanting rice as the control, study on water saving efficiency of direct seeding rice, symbiotic rice the two no-till rice planting mode.The results show that, compared with the tillage operation machine transplanting rice field, no-till cropping rice reduced irrigation frequency about 44.4% ;saved irrigation water about 1/3, among them, symbiotic set of rice water saving 135.88 m3/mu, direct seeding rice water saving 170.37 m3/mu; no-till set of rice planting water consumption in the whole growth period is less than machine transplanting rice by 20.2%, the average daily reduction of water evaporation and loss of 24.4% ; daily water consumption differences are mainly in the field of machine transplanting rice tilling stage,the daily water consumption of up to 10.99 mm, and no tillage cropping rice with average daily water consumption of about 8 ram,reduced by 27.3%. |
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Keywords: | No-till symbiotic set of rice direct seeding rice machine transplanting rice water saving |
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