一、注意营养土及秧床的制作装盘所需营养土应根据抛栽秧苗大小来决定营养土的肥力情况。一般抛栽的小苗，因生育期短，不需很多营养便可抛栽，所以可选用无残渣、土质较好的壤质土壤，在墒情好的情况下过筛就行了；抛栽的中苗，冬前１００千克土中可用土杂粪２０千克堆沤后过 First, pay attention to the production of nutrition soil and seedbed Nutritional soil required for loading and unloading should be based on the size of throwing planted seedlings to determine the nutritional status of soil fertility. Generally throwing planted seedlings, because of short growth period, without a lot of nutrition can be thrown planted, so you can choose no residue, soil loam better soil, in the case of good moisture screening on the line; cast planted seedlings , 100 kg of soil available before winter soil mixed manure 20 kg after the pound