小麦生产中常用食盐水及泥水选种汰除线虫粒、腥黑穗病粒及秕粒;同时,也有应用硫铵拌种肥育的。我们结合这二方面进行了一些改进试验,得到了有意义的结果。市售硫铵的13%水溶液相当于食盐水10%,硫铵水26%相当于食盐水20%的比重。井水汰除线虫粒的效果极差,10%食盐水基本上有汰虫效果,13%及26%硫铵水和20%食盐水都有完全的汰虫效果。26%硫铵水选种后不予水洗,晾干后拌赛力散或不拌赛力散,种子发芽率较不处理而拌赛力散的要降低 Commonly used in the production of salt and muddy water production in the selection of nematodes removed grain, sod grains and tablets; the same time, there are also applied ammonium sulfate dressing. We have done some improvement tests combining these two aspects and got meaningful results. A 13% aqueous solution of ammonium sulfate on the market corresponds to 10% salt water and 26% ammonium sulfate water corresponds to a specific gravity of 20% salt water. The effect of removing nematodes from well water is very poor. 10% salt water basically has a knock-out effect, and 13% and 26% ammonium sulfate and 20% salt water have a complete elimination effect. 26% ammonium sulfate water after the election will not be washed, dry salamander or mixed salamander powder, seed germination rate is less than the treatment of saleroli to reduce