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水稻半旱式栽培新技术在我县已推广5年,面积扩大迅速,获得了较显著的经济效益和社会效益。但通过多种试验表明,半旱式栽培水稻应注意以下事项。一、田块类别半旱式栽培水稻在各类田块都可获得增产,但以常年低产的深、冷、毒、烂田和大肥田效果最佳。它可避免坐蔸死苗,促进水稻早生快发,提高结实率和千粒重,增加产量。是改造低产田的最有效途径。据我们在5个不同类别的田块中试验,水稻半旱式栽培与平作稻相比均有增产效果,平均比平作增产38.25公斤,而深、冷、烂泥田和大肥田增产68公斤,增长14.3％。
New technology of rice semi-arid cultivation has been popularized in our county for 5 years, and the area has been expanded rapidly with obvious economic and social benefits. But through a variety of experiments show that semi-dry cultivation of rice should note the following. First, the field plots Semi-arid cultivated rice in all kinds of plots can be increased yield, but perennial low yield deep, cold, poisonous, rotten fields and fertilizer field best. It can avoid sitting dead dead seedlings, promote rapid early rice growth, improve seed setting and grain weight, increase production. Is the most effective way to transform low-yielding fields. According to our experiments in five different plots, the semi-arid rice cultivation had a yield increase compared with that of a flat cropping rice, with an average increase of 38.25 kg compared with that of the cropping paddy and an increase of 68 kg in the deep, cold, muddy fields and large fertilizer fields 14.3%.