摘要
通过对热研8-79、热研7-33-97两个新品种和老品种PR107(对照)开割橡胶树叶片矿质养分周年变化规律的分析,结果表明:不同品种间叶片的矿质营养有显著差异或极显著差异,热研7-33-97氮含量显著高于热研8-79和对照PR107,热研7-33-97和热研8-79磷含量显著高于PR107,PR107钙含量极显著高于热研7-33-97和热研8-79,镁含量热研8-79极显著高于热研7-33-97和PR107,新老品种间钾含量差异不显著。不同品种橡胶树叶片中的氮、磷、钾含量4~12月总体均呈下降趋势,而钙含量表现为逐渐增加,镁的变化比较平缓,且每年的7、8、9月叶片的矿质养分最接近年平均值。
By Reyan 8-79,SCATC7-33-97 Two new varieties and old cultivars PR107(control) to the tapped rubber leaf mineral nutrient analysis of annual variation,the results showed that: among the leaves of different varieties of mineral nutrition significant difference or significant difference,SCATC7-33-97 N content was significantly higher than the Reyan 8-79 and control PR107.SCATC7-33-97 and Reyan8-79 P content was significantly higher than PR107.PR107 Ca content was significantly higher than SCATC7-33-97 and Reyan 8-79.Mg content Reyan 8-79 was significantly higher than SCATC7-33-97 and PR107.New and old varieties no significant difference in K content.Leaves of different varieties of rubber film of N,Pand K in 4 to 12 months showed a general downward trend,while the Ca content was gradually increased,Mg in gently,and leaves each year on mineral nutrient 7,8,9 closest to the annual average.
出处
《广东农业科学》
CAS
CSCD
北大核心
2010年第11期33-36,共4页
Guangdong Agricultural Sciences
基金
国家科技支撑计划项目(2008BADA4B01)
海南省自然科学基金(809030)
国家天然橡胶产业技术体系建设专项(nycytx-34-GW2-2)
关键词
橡胶树
矿质养分
品种
rubber tree
mineral nutrients
variety