水肥滴灌对橡胶树小筒苗接穗部及根部生长与叶片养分的影响
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现代农业产业技术体系建设专项“国家天然橡胶产业技术体系种苗繁育岗位科学家经费”(CARS-34-GW4);海南省重大科技项目子课题“橡胶良种苗木繁育新技术”(ZDZX2013023-3-03);农业科技成果转化资金项目“橡胶树籽苗芽接育苗技术产业化开发与示范”(2012E2001017)。


Effect of drip irrigation combined with fertilization on the growth of scion and root and leaf nutrient in rubber diminutive polytube budding
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    摘要:

    采用不同的肥料类型、滴灌定额、滴灌时间、滴灌频次对橡胶树小筒苗进行水肥滴灌,结果表明:(1)固体肥难稀释,滴灌不均匀易产生肥害;液体肥易稀释,不堵塞滴管,营养均衡,安全可靠。(2)筛选出2组橡胶树小筒苗水肥滴灌处理:A、液体肥适量频施,即每3 d用45 mL农家沼液肥控制在60 min内滴灌于每株小筒苗;B、固体肥少量适施,即每6 d用0.5 g常规复合肥溶解稀释后控制在60 min内滴灌于每株小筒苗。(3)综合苗木接穗部的增长量、根部表现及叶片养分状况来看,农家沼液肥有较佳的水肥滴灌效果。

    Abstract:

    The different type of fertilizer, irrigation quota, irrigation time, irrigation frequency were used in drip irrigation with fertilizer on rubber diminutive polytube budding. The result showed that: (1)Solid fertilizer was difficult to be diluted, the fertilizer damage symptoms would appear if the fertilizer wasnt uniformed in drip irrigation. Liquid fertilizer was easy to be diluted, wouldnt block the dropper, contained balanced nutrition, and was safe and reliable. (2)Two groups of drip irrigation with fertilizer system were screened out for rubber diminutive polytube budding. The first one was using liquid fertilizer with high frequency of fertilization. Every 3 days 45 mL farm biogas slurry fertilizer would be used in drip irrigation in 60 minutes for each strain of diminutive polytube budding. The second one was using less solid fertilizer with suitable application frequency. Every 6 days 0.5 g conventional compound fertilizer was dissolved and diluted and applied to each strain of diminutive polytube budding with drip irrigation in 60 minutes. (3)Applied farm biogas slurry fertilizer with drip irrigation had the best effect to the net growth of scionportion, root performance and leaves nutrient content.

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周珺,林位夫*,王军,蔡明道.水肥滴灌对橡胶树小筒苗接穗部及根部生长与叶片养分的影响[J].中国土壤与肥料,2015,(3):84-87.

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  • 收稿日期:2014-05-04
  • 最后修改日期:2014-07-17
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  • 在线发布日期: 2015-06-24
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