不同栽培方式对南粳9108生育特性和产量的影响

以人工栽插、人工抛秧和机械插秧三种不同栽培方式观察南粳9108的生育特性和产量表现。不同栽培方式下南粳9108的全生育期天数依次为人工栽插人工抛秧机械插秧,主要是由于营养生长阶段明显缩短。产量表现上,人工栽插比机械插秧高10.53%,人工抛秧比机械插秧高8.79%,产量结构上主要是人工栽插和人工抛秧的穗粒数较高。相比较而言,机械插秧比人工栽插和人工抛秧的分蘖群体增加晚、高峰苗出现时间迟、单位面积穗数高、穗粒数少。从南粳9108生育期表现上,三种种植方式都可以在睢宁地区应用,其中人工栽插和人工抛秧方式较为适宜,机械插秧方式下成熟期较晚,不利于后茬小麦适期播种。

Effect of Different Culture Methods on Growing Characteristic and Yield of Nanjing-9108

Using different culture methods which were manual planting rice seedlings, manual throwing rice seedlings and machinery transplants rice seedlings to observe growing characteristic and yield of Nanjing-9108. The result indicated that whole growth period under different culture methods were manual planting rice seedlings manual throwing rice seedlings machinery transplants rice seedlings because of nutritive growth period was significantly reduced. The yield of manual planting rice seedlings were 10.53% higher than yield of machinery transplants rice seedlings, yield of manual throwing rice seedlings were 8.79% higher than yield of machinery transplants rice seedlings. grain number of manual planting rice seedlings were higher than manual throwing rice seedlings from yield structure. machinery transplants rice seedlings compared to manual planting rice seedlings and manual throwing rice seedlings, it had disadvantages which the tiller population and peak seedling were later, pikelet numbers was many and grain number was less. The three culture methods were all appling at local soil from growth duration, it is suitable to use manual planting rice seedlings and manual throwing rice seedlings, because the machinery transplants rice seedlings was not so good for wheat appropriate sowing date.