The effect of Ca and K levels on the herbage yield and nutrient composition of barley plants grown in high Mg soils
作者:
C.A. Grant,
G.J. Racz,
L.D. Bailey,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1988)
卷期:
Volume 19,
issue 15
页码: 1813-1835
ISSN:0010-3624
年代: 1988
DOI:10.1080/00103628809368053
出版商: Taylor & Francis Group
关键词: Ca;Mg;K;Zn;barley;Hordeum vulgare(L.);Mg toxicity
数据来源: Taylor
摘要:
The effects of Ca and K levels on barley (cv. Johnston) yield were studied in soil media containing high levels of Mg. The dry matter yield of barley decreased with increasing concentrations of Mg in soils, but the decrease was small. Dry matter yield was positively related to concentration of K in the soil. However, additions of fertilizer Ca or K did not increase dry matter yield, indicating that depressed yield associated with high Mg levels was not due to reduced availability of Ca or K. In commercial agriculture, applications of either Ca or K to such soils are unlikely to prove beneficial in increasing crop yields.
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