棉花良种补贴，“鸡肋”还是“飨宴”

 实践证明,棉农是国家实施棉花良种补贴的最大受益者，实现了棉花良种补贴的主要目的。有人对棉花良种补贴持有不同的态度，是因为棉农、种子企业和基层农技推广部门等相对独立的利益主体，均以从项目实施中获利多少来评价政策的优劣。棉种市场混乱是制约项目实施的关键因素,要提高项目实施水平，必须采取综合措施，重点是整治棉种市场，简化补贴操作程序。     

山东棉花生产“十一五”回顾及“十二五” 发展对策建议

 回顾了“十一五”期间山东棉花生产现状,分析了种植面积稳定、单产提高、总产增加的主要原因。在此基础上,展望了“十二五”期间山东棉花生产面临的形势,提出了稳定发展的对策建议。     

新疆兵团一四七团棉花生产“十一五”回顾及“十二五”发展对策

新疆兵团一四七团属次宜棉区,地处欧亚大陆腹地,属大陆性干旱气候,为荒漠绿洲生态农业.与全国其它产棉区相比,干旱少雨,昼夜温差大,光照充足,水源稳定,为棉花生产提供了充足的自然资源;但是土壤盐碱重,无霜期较短,春季低温风大多雨,秋季气温迅速下降,对棉花生产十分不利. 1"十一五"棉花生产回顾 1.1棉花生产对比分析."十一五"期间,一四七团棉花生产有了较大发展,植棉面积、棉花单产、总产明显提高,总体形势良好(表1).其中2010年春季降水量仅为99.8 mm,播种期比历年推迟15d左右,但子棉总产量达51300 t,创造了一四七团历史最好水平.     

“海峡两岸禅·茶·乐对话”活动在杭州举行

4月21至24日，“海峡两岸禅·茶·乐对话”活动在浙江杭州灵隐寺举行。来自海峡两岸佛教界法师、茶学专家、学者、艺术家、音乐家及众多资深茶人等参加。     

农业科技发挥“磁性”效应

近年来,三十团加大新技术的推广应用力度,种植业按照十大主体技术和六项精准农业的要求,大力推广加压滴灌、双膜覆盖、杂交棉、大棚育苗等农业技术.2007年,全团棉花平均每公顷产皮棉3150 kg,实现国民生产总值1.75亿元,增长12%;全团职工均收入14418元,增长8%.2008年,三十团在往年的基础上,又利用国家土地整改项目和团场投资结合的办法,新增加压滴灌733 hm2,推广应用双大膜覆盖棉花种植技术,面积达667 hm2.这些技术在晚春播生产中成为亮点.特别是双大膜覆盖棉花种植技术,成为承包户争抢采用的"香饽饽".     

袁小林改行种茶成"大林"

江西省瑞金市万田乡地处偏僻山区,远离城市中心,交通不便,信息不灵,长期以来没有形成任何优势产业、特色经济。村人因穷思变,纷纷外出经商、打工,造成田地、山林荒芜,集体经济＂空壳＂,村民没有脱贫。该乡万田村村民袁小林也不例外,1991年,年仅16岁的他初中毕业后,追随着滚滚打工浪潮,离开家乡南下广东闯荡。这一干就是10年,他凭着农家子弟的精明、勤快,深受用工企业的信任和器重,     

棉田早整地有“三好”

1杀灭病菌虫卵早春破土可使底层土壤得到充分的阳光照射,紫外线可杀死隐藏在土壤中的病菌。尤其是躲在地底下越冬待醒的棉铃虫的卵,被翻出地面后,经风化、日晒,加上气温的变化,可将其杀死。2碎土蓄水保墒上年犁翻过的预留棉田,越冬期冻土坚实,坷垃多。应抓住刚刚解冻及雨后合墒期,精细耙磨,打碎坷拉,改善土壤越冬期的物理性状,将土壤坷垃整理成粉末状,使耕作层结构紧密,可减少空气光照的进透量,防止水分蒸发,提高土壤蓄水保墒的能力。据有关资料显示,开春后及早整地耙磨的预备棉田,土壤含水量比不耙磨的多3%。3活化土壤开春及早精细整地,超…     

中外合资·三北种业企业简介

三北种业是一家集主要农作物种子育、繁、销于一体的现代化大型种业科技企业。经营的产品涉及玉米、水稻、油菜、棉花、油食葵、西甜瓜等作物种子,拥有自主产权和开发权的审定品种100多个,其中玉米品种50多个;拥有稳定的生产基地。     

湖北省棉花育种“十二五”研究构思

 简要分析了当前湖北省棉花生产尤其是品种选育中的问题,提出了湖北省棉花生产发展的指导思想和基本原则,并指出了棉花育种的优先发展领域。     

新疆棉花“十一五”竞争力比较研究

 利用市场占有率、生产规模、单位产量、生产成本、耕地成本等诸多研究方法,从国内竞争力层面对新疆棉花与中国其他棉花主产省份进行对比分析。分析结果表明,新疆棉花国内比较优势明显,具有较强的竞争力,但近几年棉花生产上出现一些新问题。最后,总结影响新疆棉花竞争力提升的诸多因素,并提出相应的对策建议。     

“禾康”在棉田的施用效果

"禾康"是北京飞鹰绿地科技发展有限公司推出的盐碱地改良的专利产品--盐碱土壤改良剂.它通过络合增溶作用提高土壤溶液中硫酸钙、碳酸钙的溶解度,从而大量激活被固化的钙离子.     

Self -Compatibility in a Diploid Hybrid Population of <Emphasis Type="Italic">Solanum phureja</Emphasis> – <Emphasis Type="Italic">S. stenotomum</Emphasis>

Recently proposals have been made in both Europe and North America to try to radically change potato breeding strategy from a tetraploid, heterozygous crop to a diploid inbred crop. As part of that effort, clones from the long-day adapted, late blight resistant diploid hybrid Solanum phureja – S. stenotomum population were selfed to begin the process of developing inbred lines. In March of 2016 and 2017, 42 diploid clones from the above-mentioned population were selfed in the greenhouse in Beltsville, MD. In 2016 and 2017, 10 and 13 clones failed to flower, respectively. Among the remaining clones, 716 pollinations were made in 2016, resulting in 57 fruit from 17 clones, and 3742 seeds; 801 pollinations were made in 2017, resulting in 34 fruit from 12 clones, and 1903 seeds. Nine clones were successfully selfed both years. Percent successful selfs was significantly higher in 2016 (7.96%) than in 2017 (4.24%). The most prolific clones in 2016 were BD1241–1 (34% successful selfs, 1090 seed), BD1218–3 (25% successful selfs, 638 seed), BD1215–1 (5% successful selfs, 411 seed), BD1243–1 (23% successful selfs, 232 seed). In contrast, the most prolific clones in 2017 were BD1230–2 (25% successful selfs, 537 seed), BD1203–3 (23% successful selfs, 391 seed), and BD1229–1 (11% successful selfs, 388 seed). These results indicate that there is sufficient self-compatibililty in this population to generate large numbers of inbred individuals, but that genotype x environment interactions are large. Attempts to generate selfed seed should be made over several years to maximize the genetic base of the selfed population.     

浅析棉花栽培中的“非必要”技术措施

我国是一个植棉大国,在棉花栽培技术方面各地根据自身的生产条件形成了不同的栽培技术体系.就黄河流域棉区来说,目前推广应用的仍是以"精耕细作"为主的技术体系,但随着生产的发展,"简化栽培"技术体系逐步成熟,并开始推广应用.     

Who's afraid of <Emphasis Type="Italic">Homo sapiens</Emphasis>?

Understanding how humans differ from other animals, as well as how we are like them, requires comparative investigations. For the purpose of documenting the distinctive features of humans, the most informative research involves comparing humans to our closest relatives–the chimpanzees and other great apes. Psychology and anthropology have maintained a tradition of empirical comparative research on human specializations of cognition. The neurosciences, by contrast, have been dominated by the model-animal research paradigm, which presupposes the commonality of "basic" features of brain organization across species and discourages serious treatment of species differences. As a result, the neurosciences have made little progress in understanding human brain specializations. Recent developments in neuroimaging, genomics, and other non-invasive techniques make it possible to directly compare humans and nonhuman species at levels of organization that were previously inaccessible, offering the hope of gaining a better understanding of the species-specific features of the human brain. This hope will be dashed, however, if chimpanzees and other great ape species become unavailable for even non-invasive research.     

提高叶面肥喷施效果“四做到”

叶面施肥的主要作用是弥补土壤施肥不足、防止植株早衰、促进作物营养平衡等.正确使用叶面肥,不但可以增强作物抗逆性,而且还改善作物品质和增加作物产量.     

论"吨糖田"的资源文化

"吨糖田"资源文化指的是"吨糖田"生产区域中的土壤、气候、水和甘蔗等自然资源所形成和表现的"吨糖田"文化,具有自然性、区域性、潜存性和可创性,分为土壤、气候、水和甘蔗等四大类型,可通过实物化、标本化、文字化、表格化、图象化和雕像化等符号化处理,使其成为文化符号.而建设"吨糖田"资源文化,关键是主题的确定、场地的选择、形...     

新型生长调节剂“全精控”的调控作用

以缩节胺和清水为对照,研究了新型生长调节剂“全精控”对内蒙古棉花生长发育、产量和品质的调控效果。研究结果表明：适宜浓度全精控对棉花株型调控效果很好,且能使产量增高,对棉花纤维品质也有一定的改善作用。在内蒙古阿拉善,现蕾期推荐每667 m²施用3～6片（1.5～3.0 g）,初花期施用5～8片（2.5～4.0 g）,盛花期施用7～15片（3.5～7.5 g）。     

农业部继续深入开展“农药市场监管年活动”

据农业部网站报道，为进一步加强农药市场监管工作，保障农业生产安全和农产品质量安全，2011年4月，农业部印发了《2011农药市场监管年活动实施方案》，要求各级农业部门加强组织领导，加强与工商、质检、公安、新闻媒体等部门沟通与合作，确保农药市场监管年各项措施落到实处。