矸酆恐?,垩白率与糙米率、蛋白

Χ灾绷吹矸酆康挠跋焓钦?,直接影响比间接影响大。Study on the correlation between rice quality and agronomic traits of quality riceNIE Cheng rong, WEN Yu hui, WANG Yun bo, CHEN Ming zhong,LI Mei, LIU Dao quan(Agronomy Department, Foshan University , Nanhai 528231,China)The correlative analy     

Multi-sectoral Participatory Urban Forestry Development in Philippines Metropolitan Manila

The Luntiang Kamaynilaan Project (Metro ManilaGreening Project) launched in 1988 planted trees inmajor thoroughfares, center islands, school premisesand other idle public lands, was basically a governmenteffort. When the funds ran out, the project also fizzledout. In both projects however, it is evident that the keyfactor is peoples participation.Gaining lessons from the past two projects, thegovernment established a collaborative effort ofgovernment and non-government organizations. TheCl…     

药物防治蝇害的研究进展

蝇害已经成为危害规模化畜禽养殖的重要问题。文章回顾了防治蝇害的三代杀虫剂的发展过程和存在的问题 ;展望了作为新一代环境友好防治蝇害药物的昆虫生长调节剂的开发前景。     

Study on Site-specific Nutrient Management in Cotton Field

The study on the characteristics of spatial variability of soil nutrients and fertilizer recommendations in cotton field under certain conditions of agricultural management was conducted with GIS and systematic approach for soil nutrient constrains. The results showed that of the spatial variability of soil nutrient was greatly related to the management condition of previous crops. Grid sampling and variable rate application technology (VRAT) were the tools that would hopefully increase fertilizer efficiency. The fertilizers were applied where they were needed and at proper rate. Balance fertilization demonstration showed that fertilizer recommendations according to the available nutrient level in soil could decrease fertilizer cost with 657.4 yuan / ha and increase seed cotton yield by 19.8%. A net profit of the balanced fertilization was 5314.9 yuan / ha higher than that of local fertilization practice.     

大别山-桐柏山地区杀虫性植物资源调查初报

大别山、桐柏山属于亚热带向暖温带过渡地气候 ,是植物区系的交接过渡地带 ,既有亚热带典型的代表型 ,又体现着过渡性的特征。能产生具有杀虫活性的次生代谢产物的植物即杀虫性植物。通过广泛调查、采集与鉴定 ,大别山—桐柏山地区分布有杀虫性植物 72科 138种     

构建“三位一体”防治网络预防青少年违法犯罪

青少年违法犯罪是当前的严重问题，造成这一局面有青少年自身的原因，也有社会环境的影响。预防青少年违法犯罪己成为迫在眉睫的问题，必须坚持学校、社会和家庭的配合，建立社会化防治网络，形成良好的外部环境，才能使青少年得以健康成长。     

汇率对跨国经营企业价值影响的实证分析

根据跨国经营企业价值／汇率弹性模型，得出了企业价值与汇率的函数关系；进一步，利用某些企业的实际数据，确定了这些企业价值与汇率关系式的系数，并预测了某企业未来价值的变化趋势。实证分析结果表明，跨国经营企业价值与汇率的相关性最高，其回归所得的函数具有较好的短期（一个季度内）预测效果，可以用于预测短期内跨国经营企业价值的变动。     

NM－1号抗旱剂的研究

试验结果表明谷子在—１３．９Ｐａ的负压下发芽率只有２４．０％，在—１６．７３Ｐａ时发芽率为１６．３％。用０．５％的ＮＭ—１号抗旱剂包衣后，在—１６．７３Ｐａ的负压下发芽率可达６５．６％，比对照提高４９．３％。同０．５％的ＮＭ—１抗旱剂在大豆现蕾期喷施叶面１次，相对收获株率为１１５．３８％，相对千粒量为１０７．７％，增产率为４０，２７％。玉米在６叶期喷施０．５％的抗旱剂后，饱和亏减少４．０９ｇ，是对照的４３．８１％；干物质积累比对照快６７．１９％，蒸腾系数减少８．３６ｇ。     

用亚硫酸氢钠提取菲醌方法的改进

本文对采用亚硫酸氢钠提取菲醌的方法做了研究，实验表明此法是一种经济简便的有效方法。通过实验确定了提取所需的最佳摩尔比，从而为降低生产成本提供了实验依据。     

青藏高原西部狮泉河宽谷区的荒漠化过程

狮泉河宽谷区的荒漠化过程以整个青藏高原的环境演化为背景，受人为的资源利用不合理而强化。今天的宽谷景观一方面隐含了高原宽谷的变化，一方面显示出干旱，退化的主导特征，较之西北干旱区，生态系统更具脆弱性，荒漠化的治理应在发挥区内水资源优质的同时强调生态系统自身的稳定。