Potassium, magnesium, and irrigation effects on peanuts grown on two soils1
作者:
M. E. Walker,
T. P. Gaines,
M. B. Parker,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1989)
卷期:
Volume 20,
issue 9-10
页码: 1011-1032
ISSN:0010-3624
年代: 1989
DOI:10.1080/00103628909368132
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Research data are limited on K andWgrequirements of peanuts (Arachis hypogaeaL.) grown on sandy soils either with or without irrigation. Purposes of this study were (1) to determine Mg, K, and irrigation effects on yield, sound mature kernels (SMK's), and diseases of ‘Florunner’ peanuts grown on two sandy soils and (2) to determine sufficient amounts of Mg and K in peanut leaves and soils. Field experiments were conducted for three years on a Lakeland sand (thermic, coated Typic Quartzipsainments) and a Fuquay loamy sand (siliceous, thermic, Arenic Plinthic Paleudults). Both soils initially tested low in Mehlich 1 extractable K and Mg, but Lakeland was lower than Fuquay in both K and Mg. Factorial treatments were 0, 67, 67 (split into three applications), and 134 kg Mg/ha as MgS04and 0, 56, 112, and 224 kg K/haas KC1.
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