502 ⎘
Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons; Special arrangements for delivering the liquid directly into the soil Other methods for delivering fertiliser into the soil
Sub-classes:FERTILIZER FROM HYDROLYZED CYANAMIDE COMPOUNDS
#2Fertilizer from hydrolyzed cyanamide compounds
#3PISTON DEVICE FOR LOADING MATERIAL INTO A TUBE
#4DEVICES AND METHOD FOR PROTECTING CROP PLANTS AND/OR SOWN SEEDS AGAINST UNWANTED PLANTS
#5GROUND AERATION DEVICE
#6PLANT GROWING STRUCTURE
#7CONTROLLED-RELEASED FERTILISER CONTAINER
#8Apparatus for applying a liquid and method of use
#9Plugged spray nozzle detection using radio-frequency transmissions
#10Swing pipe for manure applications
#11Method for improving soda saline-alkaline paddy fields by stirring and discharging slurry and application thereof
#12Fertilizer application