按照良种标准,小麦种子发芽率应在96％以上,但近年来,京郊生产上应用的小麦种子好的年份在80％左右,差的年份只有60％左右,甚至有的生产用种发芽率还不到50％。这种情况使全市每年无形中浪费小麦种子达0.75—1万吨以上,不但增加了生产开支,而且影响出苗,不易齐、企、匀、壮,出现缺苗断垅,麦苗生育不良,由此造 In accordance with the seed standard, the germination rate of wheat seeds should be above 96%, but in recent years, the production of wheat seeds in the suburbs of Beijing has a good year about 80%, poor years only about 60%, and even the germination rate Less than 50%. This situation makes the city every year virtually waste wheat seeds more than 0.75-1 million tons, not only increased production costs, but also affect the emergence, not homogeneous, enterprises, uniform, strong, there is lack of seedlings broken, malnutrition, from which Made