Co-Authors:
Halevy, J., Dept. of Field and Garden Crops, Hebrew University of Jecusalem, Faculty of Agriculture, Rehovot, Israel
Marani, A., Dept. of Field and Garden Crops, Hebrew University of Jecusalem, Faculty of Agriculture, Rehovot, Israel
Markovitz, T., Dept. of Field and Garden Crops, Hebrew University of Jecusalem, Faculty of Agriculture, Rehovot, Israel
Abstract:
Growth and N, P, K uptake of Acala SJ-2 cotton (Gossypium hirsutum) were investigated in an irrigated permanent-plot field (Typic chromoxerert) at Bet Dagan, Israel, under semi-arid conditions using different nitrogen levels: 0, 60, 120, 180 and 240 kg N ha-1. The total dry matter accumulation at these levels was 9.0, 10.7, 15.1, 17.1 and 15.6 ton ha-1, respectively. The uptake of N, P and K was 110, 144, 267, 322 and 301 kg N ha-1:31, 34, 46, 44 and 38 kg P ha-1; and 120, 151, 208, 251 and 230 kg K ha-1, respectively. Dry matter production, as well as N, P, K uptake by the cotton plants were greatly increased by raising the N application levels to 120 or 180 kg N ha-1, but the pattern of accumulation and relative distribution of dry matter and NPK among plant organs were not considerably affected. © 1987 Martinus Nijhoff Publishers.
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