春旱稻品种选择简报

来源 :河北农业科技 | 被引量 : 0次 | 上传用户:cmdl_CQ
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
春旱稻是一种节水型的种稻方式。它符合节水农业的发展方向。近几年来,随着春旱稻面积的扩大,我县水稻生产发展较快,到1988年已突破10万亩,水稻已成为我县主要粮食作物之一。据统计,1988—1990年,平均每年种稻120219亩,占粮食作物面积的9.3%;年产稻谷38581.4吨,占粮食总产的11.8%。其中春旱稻平均每年播种38949亩,占水稻面积的32.4%;年产13111.6吨,占稻谷产量的34.5%。由此可见,春旱稻在我县水稻生产乃至整个粮食生产中,都占有举足轻重的地位。 Spring and drought rice is a water-saving type of rice cultivation. It is in line with the development direction of water-saving agriculture. In recent years, with the expansion of the area of ​​spring and drought rice, rice production in our county has developed rapidly, reaching over 10 million mu in 1988. Rice has become one of the major grain crops in our county. According to statistics, from 1988 to 1990, the average annual paddy cultivation was 120,219 mu, accounting for 9.3% of the total area of ​​grain crops. The annual output of paddy was 38,581.4 tons, accounting for 11.8% of the total grain output. Among them, spring and dry rice planted 38949 mu per year on average, accounting for 32.4% of the paddy area; with an annual output of 13111.6 tons, accounting for 34.5% of the paddy output. Thus it can be seen that spring and dry paddy occupy a decisive position in the rice production in our county as well as the entire grain production.
其他文献
本研究从烷化剂N-甲基N-亚硝基脲(MNU)处理的韩国粳稻品种Hwacheong突变体库中,经筛选得到一个稳定遗传粉质胚乳突变体flo(t)。首先对该突变体进行基本表型鉴定及理化性质分析,然后对淀粉的理化性质和结构特性进行分析,并利用图位克隆手段对目标基因进行精细定位、基因克隆和功能验证分析。主要实验结果如下:1.flo(t)突变体籽粒的胚乳表现为白色不透明粉质状,突变体种子粒长没有明显变化,粒宽
Background:Recently we proposed a quantum theory on the conformational change of biomolecule,deduced several equations on protein folding rate from the first pr
本文通过对荣华二采区10
We prove several new comparison results and develop the monotone iterative tech-nique to show the existence of extremal solutions to a kind of periodic boundary
Background:The tools of synthetic biology have enabled researchers to explore multiple scientific phenomena by directly engineering signaling pathways within li
In this paper, we study the Sil’nikov heteroclinic bifurcations, which display strange attractors, for the symmetric versal unfoldings of the singularity at th
The Cistrome Data Browser (DB) at the website (cistrome.org/db) provides about 56,000 published human and mouse ChIP-seq,DNase-seq,and ATAC-seq chromatin profil