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重庆市地区春季气温回升快,出苗早,5、6月份温度高,雨水多,蔗苗长势快,封行早,且当地蔗农习惯于早春在蔗行间套种洋芋、黄豆等短期早熟作物,因此影响田间通风透光,对甘蔗中后期生长很不利。我们从这一实际情况出发,改原来的等行距(2.8—3尺)为宽窄行种植,适当推迟蔗田封行期,提高甘蔗光合效率,以达到提高单产的目的。我们在1980、81年甘蔗宽窄行种植观察试验的基础上,于1982年春在长寿县云集公社再进一步进行甘蔗宽窄行种植的
In spring and autumn in Chongqing, the temperature in spring rebounded rapidly, early emergence, high temperature in May and June, rainy days, fast growth of sugarcane and early closure of seedlings, and the local sugarcane farmers were accustomed to intercalating short-term precocious crops such as potato and soybean in early spring. Affect the field ventilation and light, the late growth of sugarcane is very detrimental. Starting from this actual situation, we changed the original isometric spacing (2.8-3 ft.) For wide and narrow row planting, appropriately delayed the closure of sugarcane fields and increased the photosynthetic efficiency of sugarcane so as to achieve the purpose of improving yield. Based on the observation and experiment of sugarcane width and breadth planted in 1980 and 81 in the spring of 1982, we further planted sugarcane width and breadth planted in commune commune of Changshou County