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The nutrition of the pea
Author(s) -
Woodman R. M.
Publication year - 1944
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1944.tb06202.x
Subject(s) - biology , potassium , nitrogen , boron , phosphorus , yield (engineering) , agronomy , horticulture , botany , zoology , chemistry , materials science , organic chemistry , metallurgy
Sand‐culture experiments with the pea plant demonstrated that 8.24–32.96 p.p.m. of available nitrogen was the optimum range of concentrations for yield of peas, with a bias in favour of the lower half of the range; adequate supplies of nitrogen appeared to cause branching of the tops into two or more main stems. The best range of concentrations of available phosphorus was 2.73‐10.92 p.p.m., while that for available potassium was 5.61‐44.88 p.p.m. Deficiency of potassium caused marginal scorch followed by general scorch and death of the foliage progressively up the stem. Absence of boron had not a great effect with this plant, probably because the large seed possibly contains an appreciable amount of boron.