灭草净乳油防除春播啤酒大麦田杂草试验

啤酒大麦是山东北部地区的主要经济作物之一,也是中耕作物。随着产业结构的调整,种植面积逐年扩大,由于气候适宜,耕作制度等因素,田间杂草严重,直接影响春播啤酒大麦产量。为改变过去人们多采用的人工除草方式,解决既费时费工,且劳动强度大等问题。进行了20％灭草净乳油不同浓度对春播啤酒大麦田杂草进行防除试验示范,取得了理想的效果。     

玉米节水栽培技术模式及效果分析

玉米节水栽培技术模式是把单项的农业科技最新成果综合在一起，即将种子、化肥按着播种密度，施肥的浓度要求，定位、定量、定深度，一次性机械作业完成，播种后机械喷洒化学除草剂灭草，作物生育期间免中耕。示范结果表明：这种栽培技术模式具有节约种子、省工、省肥、提高化肥利用率、降低生产成本、增产增收等优点。     

玉米免中耕试验的研究

玉米免中耕试验的研究杨淑兰，陈振武（沈阳农业大学１１０１６１）近年来在大田作物中开始进行免中耕的研究，取得了明显的效果。免中耕是少耕法的一个环节。农谚道：“锄下有水有火”。自古以来，中耕作物进行中耕除草似乎是天经地义。经辽宁、黑龙江、吉林等省农科院研...     

黑龙江省垦区大豆机械化生产配套技术

本文就垦区大豆生产实施科技兴农战略，依靠科技进步，大力推进科技创新，加速大豆生产发展的现状，阐述了垦区优质大豆机械化生产栽培配套技术：主要是大豆生产实现种子产业化，基础耕作标准化，播种精量化，田间管理机械化，施肥科学化，防病灭虫灭草航空立体化，收获机械化。     

茶园中耕机械杂草缠绕力计算与分析

贵州省是茶叶生产大省。中耕机械是茶园管理中常用的机械,中耕除草是茶园田间管理的重要环节。在田间试验中,发现中耕机械缠草是常见问题。本文对贵州省茶园杂草种类和长度进行调查,并对缠草现象分析,通过对杂草缠绕力分析和计算,建立了缠绕力数学模型,进一步对模型进行数学分析,得出了防缠草和减少缠草的措施和方法。     

中耕机对茶树鲜叶增产的机理分析

中耕是秋冬季茶园管理必不可少的一项重要内容，茶园土壤经过一年的踩踏，土壤板结，吸水吸肥能力差。所以该作业不仅劳动强度大，且资金投入也较大；人工中耕用工数一般要占全年用工数20%。实行茶园中耕机械化，不仅大幅度提高工效，降低成本，还能改善土壤结构，提高茶叶产量。1 茶园中耕机械化的作用效益。1.1 节省成本，ZGJ—150型茶园中耕机在临安市青山镇坎头村、昌化镇云浪村试验，人工中耕每667m2工本费70元，中耕机中耕平均每667m2包括人工工资、消耗柴油、机油、机器折旧总成成本16.50元，比人工中耕667m2节育成本53.50元，中…     

春大豆高产栽培技术总结

总结春大豆栽培技术,主要有选用良种、合适播期、合理的播种方式、科学的施肥中耕除草、排水以及及时防治病虫害等。     

大豆中后期田间管理技术

在分析了今年上半年黑龙江省的气候对大豆播种、出苗和生长影响的基础上，提出了加强中后期大豆田间管理技术，即防治大豆灰斑病、大豆菌核病、大豆疫霉根腐病、大豆蚜虫、红蜘蛛和叶面喷肥，拔除田间大草等技术。     

一种小型茶园中耕机的研制

该小型茶园中耕机主要针对我国南方茶园机械耕作过程中茶树树枝阻碍及枯枝、杂草缠绕实际情况,在烟草作物中耕机基础上进行的改进设计。本设计方案通过在旋耕刀旋转机构上方安装一组与之相对应的静刀片,通过静刀与动刀相互之间的间隙配合,利用静刀片上的锯齿形切刀将缠在旋耕刀上的杂草切断,再通过旋耕刀的翻转作业,将切断的草渣和短碎枯枝埋...     

茶园中耕机减震吸震技术探索

该研究旨在解决茶园中耕机作业过程中机器震动幅度较大的问题，通过调整机器部件布局、完善底盘设计、采用液压与弹簧机构，同时优化设计楔形外壳达到减震目的。     

稻麦双晚对病虫草发生的影响及解决措施

随着早熟晚粳、中熟晚粳广泛种植,水稻轻型省力栽培方式旱直播的推广,病虫也发生了变化,成熟期显著推迟,下茬无法在适宜播期种植,影响粮食丰产稳产。提出筛选早熟当家品种、大力推广机插秧、加大粮食烘干设备的投入、合理施肥、精准植保等对策。     

Sorghum and millet phenols and antioxidants

Sorghum is a good source of phenolic compounds with a variety of genetically dependent types and levels including phenolic acids, flavonoids, and condensed tannins. Most sorghums do not contain condensed tannins, but all contain phenolic acids. Pigmented sorghums contain unique anthocyanins that could be potential food colorants. Some sorghums have a prominent pigmented testa that contains condensed tannins composed of flavan-3-ols with variable length. Flavan-3-ols of up to 8–10 units have been separated and quantitatively analyzed. These tannin sorghums are excellent antioxidants, which slow hydrolysis in foods, produce naturally dark-colored products and increase the dietary fiber levels of food products. Sorghums have high concentration of 3-deoxyanthocyanins (i.e. luteolinidin and apigenidin) that give stable pigments at high pH. Pigmented and tannin sorghum varieties have high antioxidant levels that are comparable to fruits and vegetables. Finger millet has tannins in some varieties that contain a red testa. There are limited data on the phenolic compounds in millets; only phenolic acids and flavones have been identified.     

Sorghum and millet phenols and antioxidants

Sorghum is a good source of phenolic compounds with a variety of genetically dependent types and levels including phenolic acids, flavonoids, and condensed tannins. Most sorghums do not contain condensed tannins, but all contain phenolic acids. Pigmented sorghums contain unique anthocyanins that could be potential food colorants. Some sorghums have a prominent pigmented testa that contains condensed tannins composed of flavan-3-ols with variable length. Flavan-3-ols of up to 8–10 units have been separated and quantitatively analyzed. These tannin sorghums are excellent antioxidants, which slow hydrolysis in foods, produce naturally dark-colored products and increase the dietary fiber levels of food products. Sorghums have high concentration of 3-deoxyanthocyanins (i.e. luteolinidin and apigenidin) that give stable pigments at high pH. Pigmented and tannin sorghum varieties have high antioxidant levels that are comparable to fruits and vegetables. Finger millet has tannins in some varieties that contain a red testa. There are limited data on the phenolic compounds in millets; only phenolic acids and flavones have been identified.     

加强闽台科技合作交流发展我省甘蔗业

概述了海峡两岸农业交流与合作的现状,提出了应该共同呼吁尽快实现两岸“三通”,开放农业生物技术图书期刊资料交流以及开放生物学科方面网络的思路,以便为农业交流与合作的顺畅开展打好基础,并寄希望能够就糖蔗、果蔗以及甘蔗笋等方面的研究与开发到台湾学习取经,开展学术交流或与台湾同行共同开展研究,为我省甘蔗业的发展作出贡献。     

种子加工、检验理论与技术现状及思考

种子加工及检验是种子向市场流通的关键，是商业化育种中赋予种子商品属性不可或缺的环节。种子加工、检验理论与技术的研究是完善种业产业链、实现规模化商业育种、夯实“育繁推一体化”种业科学的重要一环。中国的种业科学技术体系正在形成与完善之中，受制于行业发展水平，种子加工及检验理论与技术相对薄弱。本文回顾了种子加工及检验理论与技术研究发展历程，提出了完善中国种业科学发展的策略与建议。围绕种业发展的需要，在做好品种优质化繁育的基础上，分析种子加工及检验理论与技术的新方向和新需求，加强种业应用性研究，建立先进的种子质量检验体系，研制适合现代种业发展需求的种子加工设备，打造种子加工产业标准化生产体系，完善种业科学技术学科建设，促进种业产业持续健康发展。     

大豆几种常见病虫草害的诊断与防治

1大豆花叶病毒病 大豆病毒病（Soybean Mosaic Virus,SMV）是世界性病害之一。我国东北地区已鉴定的有5种,即大豆花叶病、顶枯病、蚕豆萎蔫病、南方菜豆花叶病、花生条纹病毒。其中大豆花叶病在全国大豆主要产区都有发生,十分常见。     

大豆根潜蝇及根腐病的发生与防治

近年来，随着大豆播种面积的增长，受病虫危害日趋严重。特别是大豆根潜蝇（又名根明）与根腐病共同发生危害，严重影响大豆的生产。综合防治技术主要手段是三年以上轮作，适时播种及种衣剂拌种等措施。     

Tuber and starch quality of wild and cultivated potato species and cultivars

Summary Between 1993 and 1998 205 different potato cultivars and 1220 accessions/genotypes of wild and cultivated potato species from the IPK Genebank Gatersleben were evaluated. Parameters interesting for starch isolation and especially for the use of starch were determined. Altogether, there was a higher variability in wild potato species than in cultivated potatoes for all characteristics investigated: dry matter content, starch content, protein content, amylose content and mean particle diameter of starch granules.     

Yield and quality of winter and spring triticales for forage and grain

In field experiments conducted over 2 years in Mediterranean conditions, five winter and five spring triticales were evaluated for forage and grain production in the same cropping season. The experiments had two treatments, namely harvesting for grain only, and dual-purpose forage and grain production. In the latter treatment, forage was cut when the first node was detectable (Zadoks' stage 31), without removing the apical meristems. Grain was harvested when ripe (Zadoks' stage 92) in both cut and uncut plots.
Environmental conditions affected grain production and protein content more than forage yield and quality. Winter triticales yielded about 43% more forage than spring types, but after forage removal the spring types yielded about 36% more grain than winter triticales.
Reductions in grain yield after clipping were more pronounced in winter (32%) than in spring (19%) types. Forage crude protein content was significantly higher in the spring types studied (24.6%) than in the winter types (23.5%), the opposite being true for fibre content (20.7 and 21.6% respectively). Grain crude protein content did not differ between grain and dual-purpose treatments, but was higher in the spring triticales (12.8%) than in the winter types (11.9%). There was more variability for the measured traits within the winter triticales studied than within the spring types.     

种子加工、检验理论与技术现状及思考

种子加工及检验是种子向市场流通的关键,是商业化育种中赋予种子商品属性不可或缺的环节。种子加工、检验理论与技术的研究是完善种业产业链、实现规模化商业育种、夯实"育繁推一体化"种业科学的重要一环。中国的种业科学技术体系正在形成与完善之中,受制于行业发展水平,种子加工及检验理论与技术相对薄弱。本文回顾了种子加工及检验理论与技术研究发展历程,提出了完善中国种业科学发展的策略与建议。围绕种业发展的需要,在做好品种优质化繁育的基础上,分析种子加工及检验理论与技术的新方向和新需求,加强种业应用性研究,建立先进的种子质量检验体系,研制适合现代种业发展需求的种子加工设备,打造种子加工产业标准化生产体系,完善种业科学技术学科建设,促进种业产业持续健康发展。