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1983年在海伦县碳酸盐草甸土地区,以双丰303品种为试村,对纸筒育苗移栽甜菜所做的五因素五水平正交试验结果表明:该类型在3月25日育苗,亩保苗3174株(0.7×0.3m~2),每亩施15斤N、30斤P_2O_5、20斤K_2O.均为各项因素的最佳水平。本试验优秀组合是: 组合1——育苗期 3月3日;密度 70×30Cm~2;施氮量 15斤/亩(N);施磷量35斤/亩(P_2O_5);施钾量 15斤/亩(K_2O);亩产糖量 853斤。组合2——各因素指际依次为3月25日、70×25Cm~2 30斤、20斤、20斤、851斤。组台3——各因素指标相应为3月15日、70×30Cm~2 25斤,30斤 20斤、838斤。
In 1983, in Helan County carbonate meadow soil area, using Shuangfeng 303 as a test village, the orthogonal experiment of five factors and five levels on the transplanting sugar beet of paper tube seedling showed that on March 25, , 3174 strains of seedlings per mu (0.7 × 0.3m ~ 2), 15 kg of N, 30 kg P_2O_5 and 20 kg K_2O per mu, all of which are the best for all the factors. The best combinations of this experiment were as follows: Combination 1-seedling stage March 3; density 70 × 30 cm -2; nitrogen application rate 15 kg / mu (N); phosphorus application rate 35 kg / mu (P 2 O 5) Kg / mu (K_2O); mu yield of 853 pounds of sugar. The combination of 2-means that the factors were followed by the March 25, 70 × 25Cm ~ 2 30 pounds, 20 pounds, 20 pounds, 851 pounds. Group 3 - the corresponding indicators for the March 15, 70 × 30Cm ~ 2 25 pounds, 30 pounds 20 pounds, 838 pounds.