Study of physical properties of manure that influence the development of FYM pulverizer cum basal applicator
Keywords:
Physical properties of Manure, Pulverization, Basal applicator, FYM appliczator.Abstract
As the population of our country is increasing day by day, there is a need to supply food to each and everyindividual. It can be done by increasing the productivity of the crop by supplying enough nutrients to soilwith organic manures. Though the chemical fertilizers increase the productivity, it deteriorates the soilqualities and causes imbalance in chemical equilibrium. So application of organic manures is the only wayout. Farmers usually follow manual manure application practices which involve lot of drudgery for its fieldapplication. Physical properties of the manure affected the manure discharge rate through the blower. Densermanure gets deposited at the corners and on the other hand less dense manure creates drift due to atmosphericwind. A study was conducted to determine the physical properties of manure to develop a machine for FarmYard Manure (FYM) pulverizer cum applicator. Bulk density of the dried manure was found out as 195, 492and 520 kg m-3 for cow dung, goat faecal pellets and neem cake respectively. Sun dried manure was preferredand recommended for clump free pulverization. Tapped density of the dried manure was found out as 308,668 and 748 kg m-3 for cow dung, goat faecal pellets and neem cake, respectively. Angle of repose wasfound out as 43±0.1, 37±0.1 and 38±0.1 deg for cow dung, goat faecal pellets and neem cake. Optimumangle of repose of pulverized manure helped in easy flow ability, suction and conveying of manure. Resultsfrom the study indicated the need of developing an air tight casing for the pulverizer cum blower to preventthe effect of wind. Coefficient of friction and degree of pulverization also played an important role inoptimizing the blower speed to dissipate the powdered manure directly to the soil.References
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