Three years performance of a tolerant and a susceptible maize cultivar on non-amended and amended acid soil

A long term agronomic experiment was conducted from 1996 to 2000 at Ebolowa, Cameroon. On the acid soil with high Al supply maize grain yield of the soil acidity-tolerant cultivar ATR-SR-Y was 61% higher compared to the sensitive cultivar Tuxpeno sequia. The annual application of 60 kg P ha-1 for three consecutive years did not significantly increase the grain yield of the soil acidity-tolerant cultivar. Except in the first year lime addition resulted in a significant increase of grain yield of the tolerant (82%) and particularly the susceptible cultivar (208%). This corresponded to a significant decrease in exchangeable Al and to a significant increase in pH and exchangeable Ca and Mg contents of the soil. The application of chicken manure or green manure (#Cassia septabilis# leaves) significantly increased maize grain yield. These increases in yield were partly attributed to an increase of exchangeable Ca and available P of the soil with chicken manure and to a decrease of exchangeable Al with the application of #Cassia septabilis# leaves.

Bibliographic Details

Main Authors:	Thé, Charles, Calba, Henri, Horst, Walter J., Zonkeng, Célicard
Format:	book_section biblioteca
Language:	eng
Published:	Kluwer Academic Publishers
Subjects:	F04 - Fertilisation, F30 - Génétique et amélioration des plantes, P35 - Fertilité du sol, Zea mays, variété, sol acide, résistance aux facteurs nuisibles, pH du sol, rendement des cultures, engrais phosphaté, chaulage, fumier, mulch vivant, Cassia, toxicité du sol, aluminium, http://aims.fao.org/aos/agrovoc/c_8504, http://aims.fao.org/aos/agrovoc/c_8157, http://aims.fao.org/aos/agrovoc/c_89, http://aims.fao.org/aos/agrovoc/c_6520, http://aims.fao.org/aos/agrovoc/c_34901, http://aims.fao.org/aos/agrovoc/c_10176, http://aims.fao.org/aos/agrovoc/c_5800, http://aims.fao.org/aos/agrovoc/c_25206, http://aims.fao.org/aos/agrovoc/c_2810, http://aims.fao.org/aos/agrovoc/c_4394, http://aims.fao.org/aos/agrovoc/c_1363, http://aims.fao.org/aos/agrovoc/c_7201, http://aims.fao.org/aos/agrovoc/c_317, http://aims.fao.org/aos/agrovoc/c_1229,
Online Access:	http://agritrop.cirad.fr/508403/
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