麦茬稻对矿质元素吸收规律的研究  

Study on Uptake Mineral Elements of Rice Following Wheat

作　　者：吴金绥[1] 谢光辉[2] 苏宝林[2] 王守林[2] 

机构地区：[1]北京农业大学基础科技学院,北京100094 [2]北京农业大学农学系

出　　处：《北京农业大学学报》1994年第3期269-275,共7页

基　　金：北京市政府"北京地区水稻模式化栽培技术的研究"项目

摘　　要：根据11种矿质元素在成熟期麦茬稻植株中的含量,将其分为3组:①N,P,K,Ca,Mg,含量15～150 kg·hm^(-2);②Fe,Mn,Zn,含量0.15～15 kg·hm^(-2);③B,Cu,Mo,含量为0.15kg·hm^(-2)以下。从不同生育期稻株内的浓度变化看,N,P,K,Ca,Fe,Mg,Mn,Zn,Cu 拔节期达到高峰,然后逐渐下降;B 元素抽穗前浓度较低,抽穗后上升较快,成熟时达到高峰;Mo 拔节时浓度达到高峰,抽穗后下降,成熟时又达到另一高峰。从这些元素的累积看,N,Cu,Fe 抽穗期前累积较多,抽穗后累积较少;P,K,B,Mg,Mo,Zn 相反;Ca 和 Mn 抽穗期前后累积量相近。结合各元素在籽粒和谷草中的含量分析,抽穗前累积的 Fe 和 Cu 没有向籽粒转移或转移量小;N和 Zn 向籽粒转移较多;P,Ca,K,Mg,Mn,B 和 Mo 抽穗后累积较多,其中 Mo,P 存在于籽粒中较多,其他元素分布于茎叶中较多。According to mineral element(N,P,K,Ca,Mg,Zn,Cu,B,Mn,Mo,Fe)content in matural rice follow wheat plant,they are divided into three groups:①N,P,K,Ca and Mg,the content is more than 15 kg·hm^(-2);②Fe,Mn and Zn,the content is 0.15～15 kg·hm-2;③B,Cu and Mo,the content is less than 0.15 kg·hm^(-2).As to the element concentration in rice plant at different growth stage,the paper indicated that the concetration of N,P,K,Ca,Cu,Fe,Mg,Mn and Zn reached a peak in elongation stage; the concentration of B was low before earing and increased after earing rapidly,it reached a peak when rice mature;the concentration of Mo reached two peaks in elongation and mature stage.As to the element ac- cumulation,before earing the quantity of N,Cu or Fe accumulated was more than that after earing;the element P,K,B,Mg,Mo and Zn is opposite;the quantity of Ca or Mn accumulated was near in the two stages.To combine with the element content in ricestrew and grain,the paper showed that Fe and Cu ac- cumulated before earing nearly did not transfer to grain;N and Zn transfering was more;P,Ca,K,B, Mg.Mn and Mo mostly accumulated after earing,among them Mo and P is mostly found in grain,and others were mostly in strew.

关 键 词：水稻 麦茬稻 矿质营养 吸收分配规律 

分 类 号：S511.101[农业科学—作物学]