Response to molybdenum and limestone on wheat and barley grown on podzol soils1
作者:
UmeshC. Gupta,
J. A. MacLeod,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1978)
卷期:
Volume 9,
issue 9
页码: 897-904
ISSN:0010-3624
年代: 1978
DOI:10.1080/00103627809366862
出版商: Taylor & Francis Group
关键词: soils of Eastern Canada;field experiments;Mo application by foliar spray;and Mo concentration in boot stage tissue
数据来源: Taylor
摘要:
Molybdenum applications had no effect on the grain yield of wheat or barley. Application of limestone increased barley yield at one of the three locations and had no effect on wheat yield at any location. The Mo concentration of boot stage tissue increased with added Mo. In most cases, 0.56 kg Mo/ha applications increased the Mo concentration of boot stage tissue above 10 ppm. Increases in Mo concentration due to added Mo were generally greater at higher rates of limestone application but the Mo x limestone interaction was statistically significant only for barley at the location having the lowest pH and for wheat at the two locations with the lowest pH. Molybdenum applied as a foliar spray was found to be an effective means of increasing the Mo concentration of cereal tissues. In the case of suspected Mo deficiency in cereals, a foliar application of 0.28 kg Mo/ha should correct the problem without any ill effect from an animal nutrition standpoint.
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