论文部分内容阅读
“大窝塘”包谷,是镇雄县在大搞农田基本建设的一项长短结合,确保当年增产的措施;也是山区逐年建成高产稳产农田的好办法。所以贫下中农说:“大窝塘,就是好,土层深,肥力饱,耐旱又耐涝;挖上三、四年,垒上埂子就是大寨田”。一九七三年,虽然遭受五十天冷涝灾害,包谷仍然获得较大幅度的增产。如下表, 第一、能解决大、小春作物争节令的矛盾,保证了包谷适时播种。镇雄县的气候特点是:日照少,阴雨多,气温低,常年无霜期仅150天左右。作物的生长期长,包谷的全生育期一般在180天上下,小麦的全生育期约200天以上,大、小
“Tai Wo Tong” Valley, is the town of Xiongxiong engaged in capital construction of a length of the combination of measures to ensure that the yield increase; mountainous year is also a good way to build high and stable yield farmland. Therefore, poor middle peasants said: “Tai Wo Tong is good, deep soil, full of fertility, drought and waterlogging; dug three or four years, the ramparts on the ramparts is Dazhai.” In 1973, although it suffered 50 days of cold and flood disaster, Valley Valley still achieved a more substantial increase in output. The following table, first, to solve the conflict between big and small spring crops order to ensure the timely sowing Valley. Zhenxiong County’s climate characteristics are: less sunshine, rainy, low temperature, perennial frost-free period of only 150 days. The crop growth period is long, the whole growth period of the valley is generally 180 days, the whole growth period of wheat more than 200 days, large and small