论文部分内容阅读
在涿鹿县的黄阳山以东,桑干河与洋河汇流的三角洲内,人口稠密,在土改时每人平均大田与水田总共不到二亩地。同时,这个地区每年自春耕开始列9月底或10月初下枯霜止,只有180—200天。在同一块土地上,种二茬大田作物以时间短温度低的关系,第二茬作物成熟不了,种一茬土地休闲时间很长,每亩平均产量只200—300斤(高产种白马牙玉米是近二、三十年才种植的),维持生活不易。当地农民,在这种情况下,很早以前就创造和累积了不等第一茬作物成熟收割,就在第一茬作物的行垅
In Zhuolu County, east of Huangshan Mountain, Sanggan River and the confluence of the Yang River Delta, densely populated, land reform in each of the average field and paddy fields a total of less than two acres of land. In the meantime, there are only 180-200 days of frost in the area starting from the beginning of spring cultivation in late September or early October each year. In the same piece of land, the second crop of field crops in a short period of time the relationship between low temperature, the second crop can not mature, a crop of land leisure time is very long, the average yield per mu only 200-300 kg (high-yield white horse teeth corn Almost two or three decades before planting), maintaining life is not easy. In this case, local peasants created and accumulated a long time ago the mature harvest of the first crop ranging from the crop of the first crop