Phosphorus nutrition of white rose potato in relation to growth and minerals of leaf and root tissues
作者:
Albert Ulrich,
KwokH. Fong,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1970)
卷期:
Volume 1,
issue 3
页码: 141-154
ISSN:0010-3624
年代: 1970
DOI:10.1080/00103627009366252
出版商: Taylor & Francis Group
关键词: Phosphorus nutrition;potato;leaf minerals;root minerals;critical levels;plant analysis
数据来源: Taylor
摘要:
White Rose potato plants (Solanum tuberosum, L.) were grown outdoors, without tuber formation, in a modified Hoagland's nutrient solution with 9 treatments of KH2PO4ranging from 0 to 4.0 mmoles per liter. Deficiency symptoms ranged from very severe to none at harvest after 27 days of growth. Growth of the potato plants increased with increased P supply and was associated with an increased P content of the plant tissues. The critical H2PO4‐P concentration at a 10% reduction of top growth, based on a second leaf analysis, was about 1,000 ppm for the petiole and terminal bladelet and about 1,200 ppm for the lateral bladelet, dry weight basis.
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