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Low volume spraying.
-The low volume spraying methods essentially reduce quantity of spray solution.
-Spraying as against 300 to 500 L/ha in H.V.spraying technique is reduced to 50 to 150 L/ha in L.V. spraying technique.
-Motorised knapsack sprayer, also called Mist blower is a L.V. sprayer in which gaseous energy nozzle is used for fine breakup of spray liquid into fine spray droplets.
-The size of spray droplets depends upon:
1. Air velocity and volume.
2. Liquid flow rate.
3. Properties of spray liquid.
High volume spraying.
-The spray solution is prepared by mixing water with pesticide formulation in appropriate quantities.
-This diluted mixture is sprayed through hydraulic nozzles.
-Almost all types of high volume sprayers have some kind of pump to supply pressurized spray liquid to the hydraulic nozzle which breaks the liquid into spray droplets .
-The high volume sprayers are operated manually or powered. E,g slide pump or hand sprayers, stirrup pump sprayer, compression sprayer, compression sprayer, lever operated knapsack sprayer etc.
jim items answered the question on April 11, 2019 at 17:58
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