JIANG Wan-feng,WANG Xue-hua,ZHENG Xin-jiang,et al.Foliar Nutrition Diagnosis of Hami Jujube by DRIS[J].HEILONGJIANG AGRICULTURAL SCIENCES,2014,(08):109-111.
应用DRIS法评价哈密大枣营养状况
- Title:
- Foliar Nutrition Diagnosis of Hami Jujube by DRIS
- 文章编号:
- 1002-2767(2014)08-0109-03
- Keywords:
- Hami jujube; nutrition diagnosis; diagnosis and recommendation integrated system(DRIS); DRIS parameters
- 分类号:
- S665.1
- 文献标志码:
- A
- 摘要:
- 为初步评价枣树的营养状况,探索哈密大枣营养诊断与科学施肥的依据,研究通过在叶片营养诊断期采样,运用诊断施肥综合法(DRIS)对不同产量水平哈密大枣进行了叶片矿质营养诊断。结果表明:哈密大枣叶片N、P、K的适宜值分别为27.58+1.19 g.kg-1,1.21+0.09 g.kg-1,18.22+0.26 g.kg-1。选择的DRIS诊断参数中,N/P,N/K,K/P等表示形式的变异系数均表现出低产组大于高产组,相对于高产组,低产组元素间关系更不平衡。研究地区哈密大枣对N、P、K三种养分含量需求依次为P>K>N。
- Abstract:
- For preliminary evaluation of jujube and explore the basis of nutrition diagnosis and scientific for Hami jujube,the diagnosis and recommendation integrated system(DRIS)method was adopted to diagnose the leaf mineral nutrition of Hami jujube which sampled in leaf nutrition diagnosis period.The results showed that the optimum concentrations of N,P,K in Hami jujube leaves were 27.58+1.19,1.21+0.09 and 18.22+0.26 g.kg-1 respectively.For N/P,N/K and K/P the coefficients of variation,low-yield group were wholly larger than the high-yield group,the mineral nutrients were more unbalanced in the low-yield group.The nutrition evaluation by DRIS showed that the required content of N,P,K was P>K>N.
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备注/Memo
收稿日期:2014-03-26基金项目:新疆生产建设兵团青年科技创新资金专项资助项目(2012CB011)
第一作者简介:蒋万峰(1977-),女,新疆维吾尔自治区哈密市人,硕士,农艺师,从事果树营养诊断与施肥研究及新技术推广研究。E-mail:wanfengj@aliyun.com。