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  

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

作　　者：周珺[1,2] 林位夫[1,2] 王军[1,2] 蔡明道 

机构地区：[1]中国热带农业科学院橡胶研究所,海南儋州571737 [2]儋州热带作物科学观测实验站,海南儋州571737

出　　处：《中国土壤与肥料》2015年第3期84-87,共4页Soil and Fertilizer Sciences in China

基　　金：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)

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 m L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。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 wasn t uniformed in drip irrigation. Liquid fertilizer was easy to be diluted,wouldn t 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 m L 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.

关 键 词：橡胶树 小筒苗 水肥滴灌 接穗部 根部 叶片养分 

分 类 号：S794.1[农业科学—林木遗传育种]