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试验在大田条件下,设置带状播种(带宽20、40、60、100 cm,行距20 cm)、全区撒播(幅宽270 cm)等播种方式,研究了种子分布带对冬小麦的群体动态、产量以及产量三要素的影响。结果显示:随着播种宽度的增加,穗数和各生育期单株分蘖数均呈逐渐增加的趋势,播种宽度20 cm时,单株分蘖数和穗数最少,全区撒播时单株分蘖数和穗数最多,千粒重和穗粒数的变化趋势与公顷穗数相反,播种宽度20 cm时,千粒重和穗粒数最大,全区撒播时最小。产量则呈先上升后下降的趋势,播种宽度20~60 cm时,增产效果最好,当全小区撒播时,产量最低。综上所述,适当宽幅播种有利于小麦群体生长和产量提高,分蘖成穗率和产量比等行距播种和撒播高,本试验条件下,60 cm宽幅播种分蘖多,成穗率高,产量最高。
Under the field conditions, seed sowing (bandwidth 20, 40, 60, 100 cm, spacing 20 cm) and sowing (breadth 270 cm) were set up to study the population dynamics of winter wheat with seed distribution, Output and output of three factors. The results showed that with the sowing width increasing, the number of spikes and the number of tillers per plant increased gradually. When the sowing width was 20 cm, the number of tillers per plant and the number of spikes per plant were the least. The number of tillers per plant The number of panicles per spike and the number of spike per panicle were the most. The trend of 1000-grain weight and number of spikelets was the opposite to the number of spikes per hectare. The yield showed the trend of first increasing and then decreasing. When sowing width was 20 ~ 60 cm, the yield was the best. When the whole area was sowing, the yield was the lowest. In summary, the appropriate broad sowing is conducive to the growth and yield of wheat population, tillering spike rate and yield than the same distance sowing and sowing sowing, under the conditions of this experiment, 60 cm wide sowing more tillering, spike rate, The highest yield