【摘 要】
:
武强县部分村庄没有水源。但是在这种旱作农业条件下的张法台等三个村的333公顷旱地棉却连年增产。其基本经验是: 1.秋深耕春细耙。雨养农业要靠保自然降水,秋季在施足基肥
论文部分内容阅读
武强县部分村庄没有水源。但是在这种旱作农业条件下的张法台等三个村的333公顷旱地棉却连年增产。其基本经验是: 1.秋深耕春细耙。雨养农业要靠保自然降水,秋季在施足基肥的基础上,将地深耕20厘米,及时耙
Some villages in Wuqiang County have no water. However, 333 hectares of dryland cotton in three villages such as Zhangfatai under such dry farming conditions have been increasing year by year. Its basic experience is: 1. autumn deep plowing spring rake. Rain to rely on agriculture to protect the natural precipitation in autumn Shi Shi-based fertilizer on the ground, will be plowing 20 cm, timely rake
其他文献
Artificial neural networks are trained to forecast the plasma disruption in HL-2A tokamak. Optimized network architecture is obtained. Saliency analysis is made
烟草是我国重要的经济作物,以叶片为主要收获对象,烟叶品质极易受到外界生物或非生物胁迫的影响。类钙调神经素B亚基蛋白CBL(Calcineurin B-like protein)和互作蛋白激酶CIPK(CBL-interacting protein kinase)形成的信号通路参与植物细胞对多种生物胁迫或非生物胁迫的响应过程。因此,充分解析和利用烟草中的CBL-CIPK调控网络,有助于明确烟草在胁迫
对于新闻稿件的把关,内容是比较广泛的,有文字关、事实关、语法关等等。本文专门研究总编辑如何把好稿件的政治关。从这个目标出发,我们把它理解为稿件中所表述的观点,立场
A surface crystallization phenomenon on bonding pads and wires of integrated circuit chip is reported in this paper. Through a lot of experiments, an unknown fa
A real time α-β-γ filtering technique is applied to the monitoring of atmosphere CH4 based on a tunable diode laser spectrum system operating at 1.654μm. Th
Photoluminescence properties and exciton decay dynamics in a porphyrin side-chain polymer, poly[porphyrin acrylate- acrylonitrile (abbreviated p[(por)A-AN]), ha
The deuterium-tritium (D-T) bing plasma characteristic in an aspect ratio A=2 tokamak reactor is studied based on a simple equilibrium configuration, the Solovi
于2007-2009年试验在河南温县、兰考两试验基点,以两个具有高产潜力的超高产冬小麦品种为供试材料,在施氮0、90、180、270和360 kg N/ha条件下,研究了不同施氮量对高产冬小麦群体动态、花后光合特性、干物质积累、幼穗发育进程、碳氮代谢、籽粒产量品质及氮肥利用效率的影响。主要试验结果如下:1、不同施氮量对冬小麦群体动态变化的影响试验结果表明,两个品种小麦分蘖数变化趋势基本一致,分蘖数
The polar interface optical (IO) and surface optical (SO) phonon modes and the corresponding Frohlich electronphonon-interaction Hamiltonian in a freestanding m