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1981～1983年在我县四个公社设点摸索适宜我县甜菜栽培的行距(相同株距),以达到合理密植,提高产量的目的。试验方法五个试验点土地均属丘陵岗地,黑钙土,pH6.4～7.5。前作为麦茬或玉米、大豆,肥力中等,秋、伏翻起垄,播种时亩施二铵20斤。试验采用简单对比法。6垄区,行长30米,小区面积108平方米,实收面积100平方米。人工等距垵种,垵距25厘米。试验以行距50厘米与60厘米(对照)进行对比试验。
From 1981 to 1983, we set up a series of experiments in four communes in our county to explore the suitable row spacing (same spacing) of beet cultivation in our county in order to achieve the purpose of reasonable planting density and increasing the yield. Test methods The five pilot sites are hilly land, chernozem, pH 6.4 ~ 7.5. As a former stubble or corn, soybeans, medium fertility, autumn, volts flutter Ridge, seeding 20 acres of diammonium. Test using a simple comparison method. 6 Ridge area, governor 30 meters, the plot area of 108 square meters, the actual area of 100 square meters. Artificial equidistant species, 垵 distance 25 cm. The test was run at a distance of 50 cm and 60 cm (control).