Micronutrient topdressing of alfalfa (medicago sativaL.) on a udollic albaqualf1
作者:
J. R. Brown,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1972)
卷期:
Volume 3,
issue 3
页码: 211-221
ISSN:0010-3624
年代: 1972
DOI:10.1080/00103627209366370
出版商: Taylor & Francis Group
关键词: plant analysis;zinc;boron;copper
数据来源: Taylor
摘要:
An established stand of alfalfa (Medicago sativaL.) was topdressed with two rates each of borax, zinc sulfate, and copper sulfate at two levels of applied P and K. Yields and plant composition were determined at five harvests over two seasons. Treatments were not effective in increasing yields but topdressing with B and Zn increased the concentration of these elements in the plant tissue. The Cu concentration in alfalfa tissue was not affected by topdressing with copper sulfate. Phosphorus application rates of about four times removal rates were needed to maintain the Bray 2 soil test level of the soil.
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