‘华南8号’木薯生育期营养元素含量变化研究

doi:10.3969/j.issn.1009-7791.2009.03.002

亚热带植物科学 ›› 2009, Vol. 38 ›› Issue (03): 7-11.DOI: 10.3969/j.issn.1009-7791.2009.03.002

‘华南8号’木薯生育期营养元素含量变化研究

张永发,张冬明,唐树梅

海南大学农学院, 海南儋州 571737

收稿日期:2009-05-18 出版日期:2009-09-10 发布日期:2009-09-10
作者简介:张永发(1982-),男,贵州瓮安人,硕士,从事作物营养与施肥研究。
基金资助:
海南重点科技计划项目(080402);海南省自然科学基金项目(808197)

Study on Nutrient Contents of Cassava in Its Growth Stages

ZHANG Yong-fa, ZHANG Dong-ming, TANG Shu-mei

College of Agriculture, Hainan University, Danzhou 571737, Hainan China

Received:2009-05-18 Online:2009-09-10 Published:2009-09-10

摘要/Abstract

摘要： 通过对海南儋州地区高产木薯‘华南8号’从种植至收获全生长期的养分分析,研究木薯的营养变化规律及适宜营养诊断部位。研究表明:(1)木薯各营养器官及不同月份大量元素的养分含量存在明显差异,全株平均养分含量为:K> N> Ca> Mg> P> S;(2)木薯N、P、K、Mg及S的适宜诊断部位为叶片;(3)全株平均养分含量比例为N:P:K:Ca:Mg:S=0.89~1.87:0.14~0.27:1.06~1.72:0.54~0.99:0.18~0.32:0.06~0.16;(4)生殖生长阶段,随着株龄的增加,木薯N、P、K、Ca、Mg及S的含量均呈规律下降。

关键词: 木薯, 营养规律, 营养诊断

Abstract: By analyzing the nutrient contents of cassava in its all growth stages from planting to harvest in Danzhou,Hainan Province,cassava's nutrition characteristic and its most suitable nutrition diagnosis part were studied.The results showed that:(1) The macro element contents of cassava varied with months and with organs,and their average contents in whole cassava plant presented K> N>Ca >Mg> P>S;(2) Leaves were identified as the diagnosis parts of nitrogen,phosphorus,potassium,magnesium and sulphur contents;(3) The ratio of average contents of nutrient elements in cassava plant was N:P:K:Ca:Mg:S=0.89~1.87:0.14~0.27:1.06~1.72:0.54~0.99:0.18~0.32:0.06~0.16;(4) During the stage of reproduction,the contents of N,P,K,Ca,Mg and S of cassava dropped with the increasing of plant age regularly.

Key words: Cassava, nutrition characteristic, nutrition diagnosis

中图分类号:

S533

张永发,张冬明,唐树梅. ‘华南8号’木薯生育期营养元素含量变化研究[J]. 亚热带植物科学, 2009, 38(03): 7-11.

ZHANG Yong-fa, ZHANG Dong-ming, TANG Shu-mei. Study on Nutrient Contents of Cassava in Its Growth Stages[J]. Subtropical Plant Science, 2009, 38(03): 7-11.

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‘华南8号’木薯生育期营养元素含量变化研究

Study on Nutrient Contents of Cassava in Its Growth Stages

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