论文部分内容阅读
我区从一九七六年开始试种、示范杂交水稻,一九七八年全区推广面积达190.8万亩,其中双晚种植148万亩,占全区双晚面积的69.4％,平均亩产427.7斤,比常规品种每亩增产113斤。一九七九年推广面积达217.7万亩,其中双晚174.2万亩,占双晚面积的80％左右。绝大多数地区都获得了显著增产,也有少数地区由于没有掌握杂交水稻的特性和栽培技术特点,未能发挥其优势,增产不多或没有增产。就当前生产水平看,全区杂交水稻单产悬殊颇大,高者亩产1,446斤,低者亩产300斤。因此,提高杂交水稻单产的潜力很大。这里综合几年来的栽培情况,对杂交水稻高产栽培提出一些看法。
In 1976, the district began experimenting with rice hybrids. In 1978, the total area of 190,800 hectares was popularized, including 1.48 million mu of double-night planting, accounting for 69.4% of the double-night area of the entire district. The average mu 427.7 kg, yield 113 kg more than conventional varieties. In 1979, the total area was 2.177 million mu, of which 174.2 million were double-night nights, accounting for about 80% of the area of the double-night. In most of the regions, significant increases have been made. In a few areas, the advantages of hybrid rice and cultivation techniques have not been fully understood. As far as the current production level is concerned, the yield per unit area for hybrid rice in the region is rather high, with the highest yielding 1,446 kg per mu and the lowest yielding 300 kg per mu. Therefore, there is great potential for improving yield of hybrid rice. Based on a few years of cultivation situation, put forward some opinions on the high yielding cultivation of hybrid rice.