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Improving soil and nutrient management for cacao cultivation
About This Book
The results of early fertiliser trials on cacao showed that phosphorus (P) and potassium (K) always had positive effects, along with variable effects from calcium (Ca) and magnesium (Mg). The variability of yield responses to nutrients pointed to the need to link the nutrients with each other or with other factors, in particular with soil, climate, and topography. This chapter outlines an approach to nutrition management based on correcting the soil so that the cacao can find the nutrients it needs in optimal quantities and balances. Through two detailed case studies, the chapter discusses the determination of fertiliser formula by physical-chemical analyses of a sample of soil taken from each plot to be corrected. Finally, the chapter looks ahead to future trends in this area and suggests further reading on the subject.
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Table of contents
- 1âIntroduction
- 2âCase study: the need for one formula per plot
- 3âCase study: homogeneity in diversity
- 4âSoil diagnosis in practice
- 5âFuture trends and conclusion
- 6âWhere to look for further information
- 7âReferences