To succeed in highway maintenance, it is necessary to improve staff's professional level, to increase scientific content, and to use scientific man - aging technique.
而要实现公路的科学养护，就要从提高职工专业素质，提高作业科技含量，运用科学管理方法等多方面考虑。
The paper presented the soil nutrition diagnosis methods and the soil nutrient level status in the black earth areas. Sugar beet yield can increase 40. 3% by applying this technique.
研究了适用于黑土要地区的甜菜土壤营养诊断方法，摸清了黑龙江省双城地区的土壤养分丰缺状况，应用本方法，甜菜产量增产40.3%。
The paper presented the soil nutrition diagnosis methods and the soil nutrient level status in the black earth areas. Sugar beet yield can increase 40. 3% by applying this technique.
研究了适用于黑土要地区的甜菜土壤营养诊断方法，摸清了黑龙江省双城地区的土壤养分丰缺状况，应用本方法，甜菜产量增产40.3%。
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