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在适宜的品种和耕作制度下,选择最佳播种期和在不同播种期下采用相应优化栽培技术都能实现增产增收。为此,从1985年秋播开始,结合我地以春大麦-棉花连(套)作实况,进行了春大麦不同播期的高产栽培试验。本文拟根据三年试验结果,从叶蘖发生入手,简要分析不同播期下春性品种高产栽培的生长发育、产量因子及其与产量的关系,探索适合江汉平原大麦-棉花两熟制下大麦最适播期及各播期下高产叶、蘖、时变化模式,供参考。 一、试验材料及方法 1.1985年供试品种为舟麦1号、沪麦4号和舟麦2号,分四期播种(11月9日、15日、21日和27日)。
Under appropriate varieties and farming systems, the optimal sowing date and the corresponding optimized cultivation techniques under different sowing dates can both increase production and income. To this end, from the autumn broadcast of 1985, combined with my spring barley - cotton even (sets) for the actual situation, spring sowing different sowing date of high-yielding cultivation experiments. Based on the results of three years of experiment, this paper will start from the occurrence of leaf tillering, and briefly analyze the growth and development, yield factors and their relationship with yield of high yielding spring cultivars under different sowing dates. Optimum sowing date and sowing date, tillering and temporal variation patterns under different sowing dates for reference. I. Test Materials and Methods 1. The varieties tested in 1985 were Zhoumai 1, Humai 4 and Zhoumai 2, sown in four phases (November 9, 15, 21 and 27).