汤原县水田除草方法演进

为科学地制定除草体系，在比较详尽地查实历史资料的基础上，将本县80a来的稻田除草方法划分为5个除草阶段，阐述了每个阶段的除草特点和除草效果，提出了今后稻田化学除草的发展方向。     

棉花化学除草免中耕增产技术

棉花化学除草免中耕增产技术贾永庆河北南宫市农业局０５１８３０１９８９～１９９３年进行了棉花化学除草免中耕增产技术的研究。在棉花播种前，棉田喷施除草剂，及时耙盖，棉花播种时用代森锰锌拌种，防治棉花苗期病害。适期播种保全苗，棉花生育期间不中耕除草，保持地...     

棉田化学除草效果好

我县永隆公社自1974年在全县大搞水田化学除草的基础上,开始了棉田化学除草试验。三年来,化学除草面积逐年扩大,效果越来越好,棉花产量不断提高。1976年全公社47400亩棉田,用化学除草剂的有9700亩,皮棉     

化学除草技术在杉木幼林抚育中的应用

研究了化学除草剂在杉木幼林抚育中的除草效果。结果表明,草甘膦和百草枯混合施用的除草效果好,优于单独施用,添加洗衣粉可以增强2种除草剂的除草效果。与传统的人工除草相比,杉木幼林采用化学除草可节约用工70%,节约资金53.8%。     

大豆生产田杂草防除及存在的问题

在大豆集约化生产中，杂草防除是一个极为重要的问题。大豆生产田应在人工除草和机械除草的基础上，在兼顾生态环境的前提下，适当提倡化学除草，做到高效率、低残留，降低农民的劳动强度和生产成本，从而提高大豆的国际竞争力。     

稻田化学除草新体系开发研究

<正> 一、课题背景与研究过程 1、国内外化学除草发展动态一八九五年在法国、美国发现硫酸铜具有选择杀草作用,这就是农田化学除草的开端。一直到一九四二年内吸传导性除草剂2.4—D的发现在化学除草中开辟了一个新纪元。一九四五年二甲四氯除草剂问世,一九五七年敌稗的发现和一九六○年除草醚、杀草丹的出现,就形成了水田化学除草体系。     

除草地膜在棉花上的应用效果及其使用技术

除草地膜在棉花上的应用效果及其使用技术王耀学，陈菊蓬浙江省慈溪市农林局３１５３００马菊芬慈溪市周巷镇农办３１５３２４除草地膜集普通地膜与化学除草剂为一体，既具有普通地膜的增温保湿作用，又具有农田除草功能，是省工节本、增产增效的新型农用地膜。为探索除草...     

汤原县水田除草方法演进

为科学地制定除草体系,在比较详尽地查实历史资料的基础上,将本县80a来的稻田除草方法划分为5个除草阶段,阐述了每个阶段的除草特点和除草效果,提出了今后稻田化学除草的发展方向。     

夏大豆除草剂的选择应用及药害防治要点

黄淮海夏大豆区与东北春大豆区化学除草时期相比有所不同,黄淮海夏大豆种植区不宜使用土壤封闭防控,早期夏大豆封垄前化学除草以茎叶处理为主,中后期人工除草为辅,文中报道了黄淮海地区夏大豆化学除草的时期、药剂和技术,为该区大豆生产提供指导。     

棉田化学除草剂的应用

棉田化学除草剂的应用王延琴，潘学标中国农科院棉花所安阳４５５１１２１国外对除草剂的应用国外采用化学除草的历史较早。６０年代，化学除草得到迅速发展。１９６０年除草剂的销售额为１．７亿美元，仅占世界农药销售总额的２０％，至１９７０年上升到３４．８％；８０...     

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。     

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。     

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.     

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.     

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。     

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。     

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。