新闻采写要追求最大值

吃过甘蔗的人都知道,如把甘蔗分成三个部分,无疑是甘蔗下部最甜,中间部分较甜,越往上部则甜度越小。如同吃甘蔗的道理一样,新闻采写也应该“吃”到“最甜”部分。换言之,记者采写新闻应该追求最大值,以“最甜”来提升新闻的影响力和竞争力,从而把新闻的最大效应完全释放出来,这在新闻竞争日趋激烈的今天则显得尤为重要。     

来宾甘蔗生产机械化发展探析与对策

本方通过对来宾甘蔗生产机械化发展存在问题进行分析，并提出了来宾甘蔗生产机械化发展的对策。     

涪县所属州郡暨绵州沿革考述

"涪县"于西汉高帝时始设,自设立起,其所属州郡历代多有变迁。经过考证,涪县西汉初设时应属蜀郡,至汉武开边才属广汉郡,东汉因之。三国蜀汉时属梓潼郡。魏晋南北朝时废置改隶频繁,出现双头州郡,涪县属巴西梓潼双头郡,且为双头郡治。西魏改巴西梓潼郡为"潼州",改"涪县"为"巴西县",巴西县为潼州州治,下辖巴西、梓潼二郡。隋改"潼州"为"绵州",此时涪县名称已为巴西县取代,且已为绵州的核心部分,历代相沿。"涪县县域"也曾分置巴西县、魏城县、涪城县等县,其如同涪县之"残影",实质属绵州。元代以后,涪县的"影子"彻底消失,已经完全为绵州区域。至清雍正时绵州升为直隶州,绵州即今绵阳市的前身。     

苦参粗提液对菜青虫、梨蚜的防治作用

通过试验表明,苦参粗提液对菜青虫、梨蚜具有杀虫效果,试验同时还测定了样品中的叶绿素含量,以此来验证苦参粗提液对植物的生长是否具有调节作用,对被防治对象的生理有无影响.     

以党建主题活动为抓手构建绵遂项目大党建工作格局

绵遂公司党委专门成立"绵遂高速党旗红"党建主题活动领导小组,研究确定了"抓覆盖,建平台;抓策划,造声势;抓重点,选载体;抓典型,重示范"的活动方略,并大力组织实施.     

烟蚜自然天敌种群数量动态和控制蚜害的研究

调查表明，鲁中南山区烟蚜自然天敌主要包括寄生蜂，草蛉，瓢虫，食虫蝽，食蚜蝇和蜘蛛６个类群。在不防治田，除寄生蜂类它们都能建立稳定的种群，但不能有效的控制蚜害，在此防田内，同盱多次喷施农药，多被杀死，控蚜作用甚微；在旺长期化防田内，基本上能建立自然种群，结合其他农事活动控蚜作用明显，可见。该区烟田团棵期保护天然控制蚜害，旺长期进行化防，采收期结合共他措施保护天敌控制蚜害是可取的控制对策。     

10%吡虫啉防治小麦穗蚜

小麦穗蚜是影响小麦生产的重要害虫，由于一直采用有机磷杀虫剂乐果或氧化乐果进行防治，产生了抗药性．防效逐年下降。吡虫啉是一种烟碱类内吸性杀虫剂．为了解该药剂对小麦穗蚜的防治效果和对麦蚜天敌的影响以及大面积示范的增产效果，2004年与氧化乐果乳油进行了对比试验．现将结果整理如下：     

Genetic analysis for brix weight per stool and its component traits in sugarcane （Saccharum officinarum）

Brix weight per stool (BW) of sugarcane is a complex trait, which is the final product of a combination of many components. Diallel cross experiments were conducted during a period of two years for BW and its five component traits, including stalk diameter (SD), stalk length (SL), stalk number (SN), stalk weight (SW), and brix scale (BS) of sugarcane. Phenotypic data of all the six traits were analyzed by mixed linear model and their phenotype variances were portioned into additive (A),dominance (D), additive×environment interaction (AE) and dominance×environment interaction (DE) effects, and the correlations of A, D, AE and DE effects between BW and its components were estimated. Conditional analysis was employed to investigate the contribution of the components traits to the variances of A, D, AE and DE effects of BW. It was observed that the heritabilities of BW were significantly attributed to A, D and DE by 23.9%, 30.9% and 28.5%, respectively. The variance of A effect for BW was significantly affected by SL, SN and BS by 25.3%, 93.7% and 17.4%, respectively. The variances of D and DE effects for BW were also significantly influenced by all the five components by 5.1%～85.5%. These determinants might be helpful in sugarcane breeding and provide valuable information for multiple-trait improvement of BW.     

甜蜜的它们

它们有着天然的甜蜜味道。甘蔗甘蔗(zhé)的含糖量约为18%～20%,它的茎秆(jīng gǎn)能提炼(tí liàn)出蔗糖,也就是白糖。而且,每千克蔗糖中含铁达9毫克,因此它有个美名叫“补血果”。     

无酸发酵复合酶在糖蜜酒精中的应用探讨

无酸发酵复合酶是一种新型高效生物复合酶制剂,作用时间长,抗药性小.能有针对性杀灭和抑制产生起酒精生产过程中产酸对发酵有害的杂菌,而对生产酒精酵母没有任何影响,是一种专为提高抑菌效果及原料利用率,同时由于发酵pH的提高,促进酵母代谢,提高酒精度,降低成熟醪残糖,减少有害废水排放.可以完全替代硫酸的使用,防止因使用硫酸导致...