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close this bookBetter Farming Series 17 - Groundnuts (FAO - INADES, 1977, 40 p.)
View the document(introduction...)
View the documentPreface
View the documentWhy groundnuts are grown
close this folderChoosing seeds
View the document(introduction...)
View the documentHow to choose good seeds
View the documentDisinfecting seeds
View the documentUsing selected seeds
View the documentHow to know whether seeds are good
View the documentChoosing the land
close this folderMarking out the boundaries of the field
View the document(introduction...)
View the documentHow to calculate the area of a field
close this folderTilling
View the document(introduction...)
View the documentWhy till the soil before sowing?
View the documentHow to plough
close this folderSowing
View the documentWhen to sow
View the documentHow to sow
View the documentWhat is the correct spacing?
close this folderApplying fertilizers
View the document(introduction...)
View the documentWhat fertilizers to use
View the documentHow to apply fertilizers
close this folderCultivating
View the documentWhy cultivation is needed
View the documentHow to cultivate
View the documentWhen to cultivate
View the documentProtect groundnuts from disease
close this folderHarvesting
View the documentWhen to harvest
View the documentHow to harvest
View the documentWhat to do after harvesting
View the documentStoring
View the documentMachines and animal power are very useful in growing groundnuts
View the documentCrop rotation
View the documentSuggested question paper

What fertilizers to use

36. Groundnuts need above all phosphorus, calcium and sulfur.

The fertilizer called superphosphate contains these in the form of mineral salts.

But different amounts of fertilizers have to be used in different areas, because the soils are not the same. Ask your extension worker what fertilizer to choose and how much of it to apply.

37. To apply too much fertilizer is also a waste of money.

Example:

On an experimental field, an application of 75 kilogrammes of superphosphate per hectare resulted in a crop of 1300 kilogrammes of unshelled groundnuts. An application of 150 kilogrammes of superphosphate per hectare yielded a crop of only 1340 kilogrammes. The extra 40 kilogrammes of groundnuts did not pay for the extra 75 kilogrammes of fertilizer used.

Groundnuts can use chemical fertilizers better if you put organic manure on the field before tilling.