【摘 要】
：
在盛夏季节,有不少家庭农场利用水泥晒场和柏油路曝晒种子,严重影响了种子的发芽率。水泥晒场或柏油路面,在烈日的曝晒下,温度高达40℃以上,如果将小麦种子摊在上面,几小时
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在盛夏季节,有不少家庭农场利用水泥晒场和柏油路曝晒种子,严重影响了种子的发芽率。水泥晒场或柏油路面,在烈日的曝晒下,温度高达40℃以上,如果将小麦种子摊在上面,几小时即可将种子的胚烫死;如果将豆类及水稻种摊晒在上面,则易破裂、脱皮,影响播种品质。经试验测得,经水泥晒场曝晒过的麦种,发芽率只有46.1%;在柏油路上曝晒过的麦种,发芽率只有51.6%。
In summer season, there are many family farms that use cement sunburn and asphalt to expose seeds, which seriously affects the seed germination rate. Cement sun yard or asphalt pavement, the sun exposure, the temperature up to 40 ℃ above, if the wheat seeds spread on it, a few hours to seed the embryo burns; if the beans and rice species spread on the sun, It is easy to rupture, peeling, affecting sowing quality. According to the test, the germination rate of the wheat seeds exposed to cement sunburn was only 46.1%. The germination rate of the wheat seeds exposed to the asphalt road was only 51.6%.
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