过去我区每年只种一季春播马铃薯,收获的薯种一直贮藏到第二年春播。由于贮存时间过长,养分消耗过多,致使薯块干缩,生长势弱,种性退化,病害严重,产量低。近年来我区一些社队推行春薯秋播、秋薯春播一年二季种植的新技术。1974年秋薯收获面积8,890多亩,效果好,1975年计划进一步扩大。为不断提高栽培技术,现将调查材料整理如下: 一、秋播马铃薯的优点 (一)增产潜力大。据调查,商南富水、城关,山阳东西鹃岭、石头梁等地,7月下旬催芽,8月上旬播种,11月初收挖,生育期80-100天,亩产达1,500-2,300斤。商 In the past, only one season of spring sowing potatoes in our district was held every year, and the harvested potato species were stored till the next spring sowing. Due to the storage time is too long, excessive consumption of nutrients, resulting in potato shrinkage, the growth of weak, degenerative species, serious disease, low yield. In recent years, some communes and communities in our district have implemented the new technology of planting autumn seeding of spring sweet potato and planting autumn seasons in spring and autumn. In 1974 autumn harvested area of ​​8,890 acres of potato, good effect, plans to further expand in 1975. To continuously improve the cultivation techniques, the survey materials are now organized as follows: First, the advantages of autumn sowing potatoes (a) yield potential. According to the survey, Shangnan Fushui water, Chengguan, Sanyang Azalea Ridge, stone beams and other places, germination in late July, sowing in early August, early dig in early November, the growth period of 80-100 days, per mu up 1,500-2,300 pounds . Business