【摘 要】
：
(括号内数字:逗号前为期数,后为页数)论种子在农业:生产中的地位………………(1-1)神农架及三峡地区农作物野生和近缘 种质资源………………………………(2,21)关于荆门市种
论文部分内容阅读
(括号内数字:逗号前为期数,后为页数)论种子在农业:生产中的地位………………(1-1)神农架及三峡地区农作物野生和近缘 种质资源………………………………(2,21)关于荆门市种植业结构调整的思考………(2,38)深化实施温饱:r程 拓宽脱贫致富路子 (3,19)宜城县开发吨粮田建设吨粮县
(Figures in parentheses: number of periods before comma, and number of pages after) The status of seeds in agriculture: production .................. (1-1) Wild and germplasm resources of crops in Shennongjia and the Three Gorges area ......... ........................... (2,21) Consideration on the Adjustment of Planting Structure in Jingmen City ......... (2,38) Deepening Implementation of Food and Clothing: r Enriching the Path to Getting Rid of the Poverty (3,19) Yicheng County Development T grain plant construction tons grain county
其他文献
We report the experimental result of all-optical passive 3.55 Gbit/s non-retu-to-zero (NRZ) to pseudo-retu-to-zero (PRZ) format conversion using a high-quality-
The method of complete polar decomposition for arbitrary Mueller matrixes is introduced to analyze the birefringence vector induced in a fiber, and then based o
威优90是湘潭师范学院生物系于1985年用V20A与早熟恢复系测90配制而成。测90是1984年在IR84123中发现的早熟突变单株,经多代选择和测交筛选培育而成。 一、区试及生产试验的
Harmonic millimeter wave (mm-wave) generation and frequency up-conversion are experimentally demonstrated using optical injection locking and Brillouin selectiv
A new long-lasting phosphorescence (LLP) phosphor, Sr2SnO4:Sm3+ which emits reddish-orange LLP upon UV-excitation, is prepared by a conventional high-temperatur
The development of quantum cascade laser at 2.94 THz is reported. The laser structure is based on a bound-to-continuum active region and a semi-insulating surfa
中国萝卜(Raphanus sativus L.var. longgpinnatus Bailey)是原产于中国的一种重要蔬菜,我国萝卜种植面积在120万ha左右,位居各种蔬菜种植面积的前三位。目前,限制萝卜周年生
The effects of channel length and width on the degradation of negative bias temperature instability (NBTI) are studied. With the channel length decreasing, the
Based on the tight-binding approximation, analytical solutions of the energy dispersion and band gap of armchair-edge graphene nanoribbons (AGNRs) under uniaxia