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为了确保粮食安全,国家多年来一直强调保住18亿亩耕地这个红线。然而,18亿亩只是数量的概念,我们更应关注这18亿亩耕地的质量。现在,中国每年需要一万亿斤左右的粮食,因此不得不强化耕地的产出。我国粮食连续11年大丰收,丰收背后是每年产生7亿吨秸秆,其中只有不到1/3的秸秆实现了还田,其余的基本被烧掉或废弃,造成了环境污染和浪费。随着经济发展和劳动力成本的提高,近年来,有机肥、秸秆还田等传统养地手段,都已经很少用了,
In order to ensure food security, the state has for many years been emphasizing preserving the red line of 1.8 billion mu of cultivated land. However, 1.8 billion mu is just the concept of quantity, and we should pay more attention to the quality of the 1.8 billion mu of cultivated land. Now that China needs about one trillion jin of grain every year, it has to intensify its output. The grain yield in our country has been bumper for 11 years in succession. The bumper crop yields 700 million tons of straw every year. Only less than one-third of the straw is returned to the fields and the rest is basically burned or abandoned, resulting in environmental pollution and waste. With the economic development and the increase of labor costs, in recent years, traditional means of raising such as organic fertilizer and straw returning have been rarely used,