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我省近年来在烤烟生产中,因片面追求产量和产值,造成烟叶内在品质下降。为了尽快提高烤烟质量,找出最适宜的产量,为制定烤烟优质适产栽培规范提供科学依据。本试验以密度和施肥量为内容,研究构成烤烟优质适产相应的生物学指标,适宜的密度和施肥量。现将初步结果报导如下。一、研究方法 1.试验设计:采用3×3的裂区设计,三次重复。密度为主区,栽烟密度为1100、1500和1900株/亩。施肥量为副区,施氨量分别为3、7、11斤/亩(N:P_2O_5:K_2O=1:1:2)。肥料全部用三元复合化肥和硫酸钾,不施农肥。小区面积0.08亩,双行丁字形畦载,畦距4.5尺,每株留叶18片。
In recent years, tobacco production in our province, due to the one-sided pursuit of output and output value, resulting in decline in the intrinsic quality of tobacco. In order to improve the quality of flue-cured tobacco as soon as possible and find out the most suitable yield, it can provide a scientific basis for making good-quality cultivation standard of flue-cured tobacco. In this experiment, the density and the amount of fertilizer as the content, to study the composition of flue-cured tobacco quality appropriate biological indicators, the appropriate density and fertilizer. The preliminary results are reported below. First, the research methods 1 experimental design: the use of 3 × 3 split zone design, three repetitions. The density of the main area, planting density of 1100, 1500 and 1900 plants / mu. The amount of fertilizer for the deputy district, the amount of ammonia were 3,7,11 kg / mu (N: P_2O_5: K_2O = 1: 1: 2). Fertilizer all ternary compound fertilizer and potassium sulfate, no fertilizer. The plot area of 0.08 acres, double T-shaped 畦 set, 畦 distance of 4.5 feet, leaving 18 leaves per plant.