Fertilizer Requirements of Cacao (Theobroma Cacao L.) in South-western NigeriaIn the first three chapters information is given on the cacao industry and on the climate and soils in general and cacao soils in particular of the main cacao growing area of South-Western Nigeria. In the next chapter (4) a study on soil moisture is presented. In view of the long dry season the soil moisture relationships are the main factor determining the suitability of the soil for cacao. This chapter is followed by one on soil phosphorus which was found to be the main nutritional factor limiting yield as shown by the results of the fertilizer trials reported in chapter 6. |
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Page 51
... Ayorinde , ( 4 ) Ricket . The second replicate comprises the farms ( 5 ) Iroko , ( 6 ) Akinyele , ( 7 ) Balogun and ( 8 ) Aiyetoro . Pre - treatment recording was started in 1960 and fertilizer treatments began in 1962 and were ...
... Ayorinde , ( 4 ) Ricket . The second replicate comprises the farms ( 5 ) Iroko , ( 6 ) Akinyele , ( 7 ) Balogun and ( 8 ) Aiyetoro . Pre - treatment recording was started in 1960 and fertilizer treatments began in 1962 and were ...
Page 53
... Ayorinde , however , where application of P has usually no effect a significant positive P effect was found during the 1966-67 cropping season when the yield was exceptionally high and exceeded 1600 lb dry beans per acre . The analysis ...
... Ayorinde , however , where application of P has usually no effect a significant positive P effect was found during the 1966-67 cropping season when the yield was exceptionally high and exceeded 1600 lb dry beans per acre . The analysis ...
Page 75
... Ayorinde Akinyele Iroko 58 40 0.31 * Bray and Kurtz method nr . 1 The sites of the series III experiments have only two. mean linear response site young leaves available P ( ppm ) * April / May older leaves January young leaves per in ...
... Ayorinde Akinyele Iroko 58 40 0.31 * Bray and Kurtz method nr . 1 The sites of the series III experiments have only two. mean linear response site young leaves available P ( ppm ) * April / May older leaves January young leaves per in ...
Common terms and phrases
Aba-Agbo Agric Aiyetoro Akinyele alii Amelonado annual Aponmu applied available water Ayorinde Balogun Bray and Kurtz cacao belt cacao leaves cacao soils cacao trees cent clay content clayey soils Cocoa correlation crop decrease deficient depth determined differences dry season dry-matter content extractable fertilizer experiments fertilizer trials field capacity flush forest fraction Ghana gneiss gravel Ibadan Iddo Ikole Ilesha inch layer increased inorganic Iroko kaolinitic lb dry beans leaf age leaf analysis light intensity linear mean metamorphic metamorphic rock mineral composition mulch Nigeria nitrogen non-occluded nutrient nutrient concentrations nutrition Oke-Irun Oloba organic matter petiole phosphate planting plots Pobé pods potassium pre-treatment rainfall regression relationship requirements of cacao response Ricket sandy soils shade soil and leaf soil moisture soil profiles sorption sorption capacity South-Western Nigeria texture Theobroma cacao top soil WESSEL yield young cacao young leaves