SEEDLING BED AND METHOD FOR RAISING SEEDLING AND CULTURE OF CROP USING THE SEEDLING BED

摘要

PROBLEM TO BE SOLVED: To provide a seedling bed dispensing with the work for uniformly mixing a granular agrochemical to bed soil, having excellent labor-saving handling workability to enable the mechanized application of bed soil and agrochemical and giving uniformly grown seedling and causing little falling off of the granular agrochemical attached to the root in transplantation, a method for raising seedling by using the seedling bed and a method for the culture of crop effective for saving the labor of the application work by decreasing the application amount and frequency of the agrochemical during the whole cultivation period while keeping high controlling effect on vermin and pest by the transplantation and fixing of the seedling on the main field owing to the transfer of the major part of the granular agrochemical to the main field. SOLUTION: The objective seedling bed is composed of a bed soil layer, a composite seed layer formed on the bed soil layer and a soil covering layer formed on the composite seed layer, wherein the composite seed layer is composed of sustained release granular agrochemical and the seed. The cultivation method for the crop comprises the transplantation and fixing of the seedling raised by using the seedling bed to the main field in a state keeping the sustained release agent on the root of the seedling.