俗话说:“种稻要好秧”,“秧好半季稻”,搞好春播育秧对于夺取早稻丰收,乃至对全年农业生产丰收占有十分重要的地位。而春播期气温变化剧烈,常遇低温阴雨,对春播育秧造成很大困难和威胁,轻者停滞生长,叶尖发黄,重者烂秧死苗。如1972年4月初受冷空气低温阴雨影响,全县损失谷种二十多万斤,这不仅造成谷种紧张,需补种补苗,而且推迟了农事季节。但我们在调查中 As the saying goes: “planting rice to good seedlings,” “good seedlings of semi-season rice” and do a good job of spring planting seedlings for the harvest of early rice harvest, and even the annual harvest of agricultural production occupies a very important position. The spring sowing temperature changes violently, often encounter low temperature overcast rain, spring sowing seedlings caused great difficulties and threats, light stagnant growth, tip yellow, severe rotten seedlings. As early as April 1972 by the cold air temperature and rain, the county lost more than 200,000 kilograms of cereal, which not only caused trough grain, seed replanting, but also delayed the farming season. But we are in the investigation