NUTRIENT STORAGE POOL CONCENTRATIONS IN PLANTS AS DIAGNOSTIC INDICATORS OF NUTRIENT SUFFICIENCY

被引：12

作者：

BARRACLOUGH, PB

机构：

[1] Crop Management Department, AFRC Institute of Arable Crops Research, Rothamsted Experimental Station, Harpenden, AL5 2JQ, Herts.

来源：

PLANT AND SOIL | 1993年 / 155卷

关键词：

DIAGNOSIS; NUTRITION; PLANTS; WHEAT;

D O I：

10.1007/BF00025012

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Macronutrients accumulate as free ions in all plant organs when supplies are abundant but growth requirements are generally satisfied before high concentrations are attained. Low threshold concentrations are necessary to ensure maximum growth and in wheat leaves these are around 10 mM nitrate, 5 mM phosphate, 0.5 mM sulfate and 130 mM potassium. The measurement of inorganic ion concentrations in leaves has potential as a diagnostic tool and might enable soil nutrient supplies to be more accurately matched with crop needs.

引用

页码：175 / 178

页数：4

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