施用氮磷钾对密植梨枣生长与叶片养分季节动态的影响

ISWC OpenIR > 水保所知识产出(1956---)

	施用氮磷钾对密植梨枣生长与叶片养分季节动态的影响
	张彤彤; 徐福利; 汪有科; 林云
	2012
发表期刊	植物营养与肥料学报
卷号	18 期号:01 页码:241-248
摘要	以山地梨枣(Zizyphus jujuba Mill.cv.Lizao)为试验材料,采用野外试验与室内分析,研究了黄土丘陵区山地滴灌下施用氮磷钾对矮化密植梨枣生长,产量及品质的影响以及施肥对梨枣叶片8种营养元素(N、P、K、Ca、Mg、Fe、Mn、Zn)季节动态变化规律。结果表明:施氮肥可促进前期枣树新枝生长和枣果膨大;施磷肥可提高产量,达到33210 kg/hm2;施钾肥可明显提高枣果品质。不同生育期梨枣叶片养分含量变化也具有一定的规律性。开花坐果期(5月上旬至7月上旬),叶片N、P、K含量处较高水平,Mg、Fe、Mn、Zn含量处于较低水平。果实膨大期(7月中下旬到8月下旬),叶片N、P有一个相对稳定的含量,K快速下降,而Fe、Mn、Zn含量上升。果实成熟期(9月初到10月初),叶片N、P、K含量下降,Mg、Fe、Mn、Zn则是缓慢上升并趋于稳定。叶片N、P、K、Mn含量之间呈正相关,Ca、Mg、Fe、Zn含量之间也呈正相关关系,叶片N、P、K之间达极显著正相关关系,而N、P、K与Ca、Mg、Fe、Zn含量之间呈负相关关系。
其他摘要	To investigate the influence of different fertilization on jujube nutrients，field experiments were conducted in loess hilly-gully mountains，and pear-jujube ( Zizyphus jujuba Mill． cv． Lizao) was used as experimental materials． The plant development，productivity and fruit quality of pear-jujube in different fertilizer application conditions were studied，and the seasonal dynamic changes of eight kinds of nutrition elements ( N，P，K，Ca，Mn，Zn and Fe) of pear-jujube leaves were also examined． The results show that N fertilizer can increase the growth of the new branches and the jujube enlargement． P fertilizer can improve fruit yield to 33210 kg /ha; K fertilizer can improve fruit quality． Therefore，P and K fertilizer cooperating application can increase both yield and quality of the pear-jujube． The results show that the contents of N，P and K of the pear-jujube at the blossom and fruit-set period ( from early May to early July) are in higher levels，compared with Mg，Fe，Mn and Zn． Besides，the contents of N and P in leaves are relatively stable at the fruit enlargement period ( from middle July to late August) ; at the same time，K is declined drastically，while trace elements ( Fe，Mn and Zn) have rising trends． At the fruit maturation stage ( from early September to early October) ，the contents of N，P and K in leaves are decreased，whereas Fe，Mn and Zn are increased slowly or remained basically unchanged． So we conclude that there are positive correlations between N，P， K and Mn and between Ca，Mg，Fe and Zn in leaves of jujube in the growth period． Furthermore the contents of
关键词	梨枣叶片营养施肥矿质元素
语种	中文
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/5249
专题	水保所知识产出(1956---)
推荐引用方式 GB/T 7714	张彤彤,徐福利,汪有科,等. 施用氮磷钾对密植梨枣生长与叶片养分季节动态的影响[J]. 植物营养与肥料学报,2012,18(01):241-248.
APA	张彤彤,徐福利,汪有科,&林云.(2012).施用氮磷钾对密植梨枣生长与叶片养分季节动态的影响.植物营养与肥料学报,18(01),241-248.
MLA	张彤彤,et al."施用氮磷钾对密植梨枣生长与叶片养分季节动态的影响".植物营养与肥料学报 18.01(2012):241-248.

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