夏棉化调技术

来源 :中国棉花 | 被引量 : 0次 | 上传用户:liongliong550
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
夏棉生育期短生长发育快,出苗后又处在高温、高湿季节,水、肥、光照条件好,棉花生长快,但蕾铃脱落严重、烂铃多、成熟晚,影响产量和品质。棉农为此也采取了相应控制措施,但只是作为一种应急措施,中耕断根、整枝打顶、初花期一次化控,但 The rapid growth and development of summer cotton during the short growth period, after emergence in the high temperature and high humidity season, water, fertilizer, light conditions, cotton grow fast, but the buds fall off seriously, bad bell more mature late, affecting yield and quality. Cotton farmers have also taken corresponding control measures for this purpose, but only as a kind of emergency measure, cultivating and root cutting, pruning and top-hatching, once the first flowering control, but
其他文献
Transmission spectra of triangular lattice photonic crystals milled in the top surface of an annealed proton exchange waveguide are numerically simulated.The ef
期刊
@@
In order to understand the long-standing problem of the nature of glass states,we perform intensive simulations on the thermodynamic properties and potential en
期刊
@@
We study the dynamics of a two-mode BoseHubbard model with phase dissipation,based on the master equation.An analytical solution is presented with nonzero asymm
期刊
@@
We focus on two new 2D materials,i.e.,monolayer and bilayer silicon phosphides (Si1 P1).Based on the elastic scattering Green’s function,the electronic-transpo
期刊
@@
在52年以前,我有幸被介绍到在长沙新创办的国际新闻社工作,名记者范长江是这个社的社长,我从此就当了他的一个学徒。我随长江工作了两年,以后由于皖南事变后国新社在国统区
The optical frequency comb has been widely used in precision measurement.In this study,a multi-peak fitting approach is first proposed to fit the two-photon tra
期刊
@@
We demonstrate a fiber Fabry Pérot cavity in the ultraviolet range,which covers the florescence wavelength for the 2P1/2 to 2S1/2 transition of Yb+ and is desi
期刊
@@
龙眼(Dimocarpus longan Lour.)是重要的亚热带果树。本试验以‘红核子’和‘四季蜜’龙眼为材料,克隆龙眼GIGANTEA (GI)和FLAVIN-BINDING, KELCH REPEAT, F-BOX1(FKFl)基因,
We present a terahertz (THz) real-time digital holographic system with zoom function worked at 0.17 THz.The magnificationfactor ranges from 1 to 2.In the imagin
期刊
@@
当Google成功上市以后,英国《金融时报》采访其投资人克尔·莫理茨(Michael Moritz)时,这位最著名的美洲杉投资公司(Sequoia Capital)合伙人之一、前《时代》杂志的记者认为