TY - BOOK AU - RANJOT SINGH DHALIWAL TI - DEVELPOMENT AND EVALUATION OF AN ENGINE OPERATED WALK TYPE DROP DOWN SPRAYER FOR COTTON CROP U1 - T 631.33 PY - 2018/// CY - LUDHIANA PB - PAU KW - 1.COTTON 2.SPRAYING EQUIPMENT 3.AGRICULTURAL MACHINERY KW - NOZZLE KW - SPOT SIZE ER -