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Search: authors:"O. S. Neves"

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Adubação do algodoeiro: V - Ensaios com azôto, fósforo e potássio, em "campos de cooperação

This paper reports the results obtained in 71 fertilizer experiments with cotton conducted from 1935-36 up to 1941-42 in private farms located on the principal soil types of the State of São Paulo's cotton belt. In this work were compared 0, 40 and 80 kilograms of P2O5, per hectare, as well as three levels of nitrogen and of potash, and three forms of phosphates. Nitrogen and...

Melhoramento das variedades paulistas de algodão. Criação da IAC 13-1

The origin and breending of the São Paulo cotton variety IAC 13-1, as well as the involved proceedings and numerical results are reported. The "eastern Acala" Acala 5675, selected at Knoxville, Tenn., from a Mexican cotton was introduced to São Paulo in 1950. It showed very good fiber qualities in the new environment. After nine years of acclimation and individual selection it...