论文部分内容阅读
面对我国人均只有一亩多耕地的严峻局面,提高单位面积产量是我国农业增产的主要出路之一。1989年全国粮食播种亩产246千克,而耕地年亩产约为390千克,这一情况表明,大量农田已进入中产水平。其中,年亩产超过500千克的有3.2亿亩。超过750干克的约5000多万亩,少量已接近或达到吨粮(均按统计面积计算)。这个形势要求我们既重视低产变中产,也要将中产变高产或高产再高产作为
Faced with the harsh situation of only one acre of cultivated land per person in our country, increasing the output per unit area is one of the major outlets for increasing agricultural output in our country. In 1989, grain output per mu was 246 kg, while that of cultivated land was about 390 kg per mu. This shows that a large amount of farmland has entered the middle class. Among them, the annual output of more than 500 kg has 320 million mu. More than 750 dry grams of about more than 5000 mu, a small amount has been close to or reach tons of food (by statistical area). This situation requires that we attach importance not only to low-yielding and middle-yielding but also to changing middle-yielding to high-yielding or high-yielding and high-yielding