VARIATIONS IN COMPOSITION OF PASTURE HERBAGE

被引：12

作者：

THOMPSON, JK

WARREN, RW

机构：

[1] School of Agriculture, Aberdeen

来源：

GRASS AND FORAGE SCIENCE | 1979年 / 34卷 / 02期

关键词：

D O I：

10.1111/j.1365-2494.1979.tb01450.x

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Changes in the chemical composition of pasture samples from five dairy farms were observed over a 2‐year period. Many of the minerals were at their lowest concentration in samples taken in the spring and early summer. At these times the concentrations of P, Mg and Na were often less than sufficient to meet the calculated requirements of the dairy cow fed on pasture alone. Cu and Co concentrations in the herbage were also generally low relative to the needs of the dairy cow. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：83 / 88

页数：6

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