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黄淮河流域是我国北方冬油菜主要产区,1978年油菜面积达到600多万亩。由于冬季低温、干旱少雨、冻害严重,大量死苗,保收率低,常年因冻害而毁种的约占播种面积30—50%,严重的年份高达70%以上。产量低而不稳,单产徘徊在50斤左右。因此,安全越冬是油菜栽培的关键。1980年我所受农业部委托,组织了北方八省冬油菜生产技术考察,同时在河南新乡地区小店公社建立基点,针对防冻保苗和高产栽培技术开展了所内外相
The Huang-Huai River Basin is the main producing area of northern winter rape in China. In 1978, the rapeseed area reached more than 600 million mu. Due to the low temperature in winter, aridity, severe frost damage, large numbers of dead seedlings, low preservation rate, about 30-50% of seeding area destroyed by frost damage and 70% of severe seasons in winter. Yields are low and unstable, yield hovering around 50 pounds. Therefore, the safe winter is the key to rape cultivation. In 1980, I was entrusted by the Ministry of Agriculture to organize the inspection of winter rapeseed production in the eight northern provinces. At the same time, I set up the basic point in Xiaodian Commune in Xinxiang, Henan Province, and carried out the internal and external phases for antifreeze seedling protection and high-yielding cultivation techniques