Record Details

Knapsack sprayer doubles as fertilizer applicator

CGSpace

View Archive Info
 
 
Field Value
 
Title Knapsack sprayer doubles as fertilizer applicator
 
Creator Technical Centre for Agricultural and Rural Cooperation
 
Description In West Africa scientists have shown that nitrogen applied in solution is the best fertilizer for rice grown in mangrove swamps. Granular fertilisers tend to get washed away by the twice dally flooding.



Scientists at the West African Rice Development Association looked for a simple way to apply liquid fertilizer. They modified the knapsack sprayer into a deep placement nitrogen injector removed the nozzle, straightened the brass lance, and added a sharpened pipe to the end.



They also drilled holes in the pipe about 1.5mm from the tip. Urea, dissolved in water, forms a nor-corrosive solution. Trained operators can inject 4-5ml of the solution into the soil 20-25cm deep. A single injection is as effective as several broadcast applications, or the use of other slow release forms of nitrogen fertiliser. Liquid nitrogen is available to the rice plant at a higher level, over a longer period of time, and produces greater yields. 40 to 60kg of nitrogen per hectare can increase yields by 30 to 50%.



For more details, contact:



WARDA



01 BP2551



Bouake



COTE D'IVOIRE
In West Africa scientists have shown that nitrogen applied in solution is the best fertilizer for rice grown in mangrove swamps. Granular fertilisers tend to get washed away by the twice dally flooding. Scientists at the West African Rice...
 
Date 2014-10-08T13:15:53Z
2014-10-08T13:15:53Z
1989
 
Type News Item
 
Identifier CTA. 1989. Knapsack sprayer doubles as fertilizer applicator . Spore 20. CTA, Wageningen, The Netherlands.
1011-0054
https://hdl.handle.net/10568/45036
 
Language en
 
Relation Spore, Spore 20
 
Publisher CTA
 
Source Spore