Studies on the mineral nutrition of grain sorghum. III. Populations of the common two spotted spider mite on grain sorghum grown on various levels of N, P and K.

Flechtmann, C.H.W. and Malavolta, E (1976) Studies on the mineral nutrition of grain sorghum. III. Populations of the common two spotted spider mite on grain sorghum grown on various levels of N, P and K. Communications in Soil Science and Plant Analysis, 7 (9). pp. 839-841.

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Abstract

A greenhouse experiment showed a positive relationship between N, P and K levels in the nutrient solution and leaves and spider mite (Tetranychus urticae) development on grain sorghum. In the absence of N or P only small populations of mites developed and in the absence of K no mites were observed. Levels of 2.10% N, 0.18% P and 1.20% K in the leaves were the minimal values to allow large spider mite populations to develop

Item Type: Article
Uncontrolled Keywords: Grain sorghum; Acari; Mites; Nitrogen, Phosphorous and Potasslmn levels
Author Affiliation: Department of Zoology, Esc. Sup. Agric. "Luiz de Queiroz", University of Sao Paulo 13.400 Piracicaba, S.P., Brazil
Subjects: Plant Protection
Crop Improvement
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 26 Jul 2012 08:23
Last Modified: 26 Jul 2012 08:23
URI: http://eprints.icrisat.ac.in/id/eprint/7006

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