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Mineral Content of Tomato (Lycopersicon esculentum) and Four Competing Weed Species

Published online by Cambridge University Press:  12 June 2017

Douglas C. Sanders ,
Allen S. Grayson  and
Thomas J. Monaco
Douglas C. Sanders
Affiliation:
Hortic. Sci., North Carolina State Univ., Raleigh, NC 27650
Allen S. Grayson
Affiliation:
Hortic. Sci., North Carolina State Univ., Raleigh, NC 27650
Thomas J. Monaco
Affiliation:
Hortic. Sci., North Carolina State Univ., Raleigh, NC 27650
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Abstract

Tomatoes (Lycopersicon esculentum ‘Roma VF’) and weeds were seeded at two locations in 1973 and 1974. In separate plots, jimsonweed (Datura stramonium L.), tall morningglory [Ipomoea purpurea (L.) Roth.], and common cocklebur (Xanthium pensylvanicum Wallr.) seedlings were thinned to densities ranging from 2.7 to 86 plants/m2. Densities of large crabgrass [Digitaria sanguinalis (L.) Scop.] ranged from 11 to 430 plants/m2. There were a few instances of difference in nutrient concentrations in tomato and weed leaf tissue, but no clear relationship was evident between concentration of N, P, K, Ca, Mg, and S and weed density. Considerably more fruit weight was produced per kilogram of total assimilated N, P, and K in the weed-free than in the weed-infested tomato plots.

Keywords

Datura stramoniumIpomea purpureaXanthium pensylvanicumDigitaria sanguinalis
Type
Research Article
Information
Weed Science , Volume 29 , Issue 5 , September 1981 , pp. 590 - 593
Copyright
Copyright © Weed Science Society of America 

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