陕西省农业清洁生产的现状和对策

阐述了陕西省实施农业清洁生产的重要意义,并针对陕西省在实施农业清洁生产过程中存在的问题,提出了战略措施。     

伊犁地区玉米制种的气候适应性与玉米制种产业的发展前景

比较国内几个玉米产区气候条件对玉米制种的适应性，以及伊犁年际气候条件对玉米制种的适应性表明，伊犁地区适合玉米制种，玉米制种具有较大的发展空间。     

新疆生产建设兵团报、刊文献资源的研究与利用

记述兵团报、刊历史发展的概况,分析了兵团报、刊文献资源所反映的军垦文化特色,并对其开发利用进行研究。     

枫香家系木耳生产力研究

对34个枫香家系段木栽培木耳的研究表明,不同家系木耳生产能力相差悬殊,34个家系均大于ck,增产幅度高达52.35%-504.71%。大于平均值25%-59%的家系有7个,大于平均值60%的有8#（77.99%）、52#（62.45%）、118#（98.53%）3个家系。但同一家系内不同株间,同一株内不同段木间,木耳产量均有较大差异。     

水稻高产攻关应注意的问题

针对生产中来自各种途径的高产攻关项目,分析了大面积高产攻关和小面积高产攻关的特点和目标任务,以及相关工作中应该注意的问题。提出了需要重新审视在大面积生产中以推广品种为核心,专门选择较好的生产条件搞高产攻关的思路问题,以及应针对各地生产中存在的问题搞高产攻关和科研与推广分工协作的新建议。     

Tree and crop productivity in gliricidia/maize/pigeonpea cropping systems in southern Malawi

This study examined the hypothesis that incorporation of Gliricidia sepium (Jacq.) Walp.) (gliricidia), a fast-growing, nitrogen-fixing tree, into agroforestry systems in southern Malawi may be used to increase the input of organic fertilizer and reduce the need for expensive inorganic fertilizers. The productivity of maize (Zea mays L.), pigeonpea (Cajanus cajan L.) and gliricidia grown as sole stands or in mixed cropping systems was examined at Makoka Research Station (latitude 15° 30′ S, longitude 35° 15′ E) and a nearby farm site at Nazombe between 1996 and 2000. Treatments included gliricidia intercropped with maize, with or without pigeonpea, and sole stands of gliricidia, maize and pigeonpea. Trees in the agroforestry systems were pruned before and during the cropping season to provide green leaf manure. Maize yields and biomass production by each component were determined and fractional light interception was measured during the reproductive stage of maize. Substantial quantities of green leaf manure (2.4 to 9.0 Mg ha⁻¹ year⁻¹) were produced from the second or third year after tree establishment. Green leaf manure and fuelwood production were greatest when gliricidia was grown as unpruned sole woodlots (c. 8.0 and 22 Mg ha⁻¹ year⁻¹ respectively). Improvements in maize yield in the tree-based systems also became significant in the third year, when c. 3.0 Mg ha⁻¹ of grain was obtained. Tree-based cropping systems were most productive and exhibited greater fractional light interception (c. 0.6 to 0.7) than cropping systems without trees (0.1 to 0.4). No beneficial influence of pigeonpea on maize performance was apparent either in the presence or absence of gliricidia at either site in most seasons. However, as unpruned gliricidia provided the greatest interception of incident solar radiation (>0.9), coppicing may be required to reduce shading when gliricidia is grown together with maize. As pigeonpea production was unaffected by the presence of gliricidia, agroforestry systems containing gliricidia might be used to replace traditional maize + pigeonpea systems in southern Malawi. This revised version was published online in June 2006 with corrections to the Cover Date.     

Technical efficiency in the spice based agroforestry sector in Matale district, Sri Lanka

Spices constitute an important sub-sector of the economy of Sri Lanka. Most perennial spices are cultivated in agroforestry types of farming systems. A field survey was conducted covering 127 agroforestry farmers in six divisional secretariats in Matale district during the period of October to December 2002. Technical efficiency of spice based agroforestry systems was estimated in order to identify the potential increase in production without incurring additional costs for farm inputs. The factors affecting technical efficiency and constraints and potential of the agroforestry system were also investigated. According to a stochastic frontier production function using a Cobb–Douglas model, hired labour, organic fertilizer, inorganic fertilizer, land size, and soil conservation measures showed significant positive effects on the agroforestry production. The mean technical efficiency of the spice based agroforestry systems was 84.32%. According to the inefficiency model the efficiency increased significantly as a result of farm visits by extension officers, participation in farmer training, less sloping lands, more experience, and higher diversity of the agroforestry system. Technical efficiency decreased, however, with higher education level of the farmer and with higher off-farm income. Unsustainability of the agroforestry system is seen as a result of a␣range of constraints related to productivity, market, technology and institutions.     

谈如何加强变电运行安全生产

变电运行的主要任务是电力设备的运行操作和维护管理工作。其特点是维护的设备多,出现异常和障碍的机率大;工作繁琐乏味,容易造成人员思想上的松懈;一旦发生变电事故,轻则造成经济上的损失,重则危及电网、设备和人身的安全,甚至会给社会带来不安定因素,影响社会的稳定。     

单宁胶生产线的工艺设计

针对落叶松单宁胶原料及生产工艺的特点,对其生产线工艺设计的主要工序,如备料、计量、合成及控制等关键环节进行了分析,并提出相应的解决措施.     

南瓜茶饮料不同风味加工技术研究

研究了以南瓜为原料，经热水2次浸提（1kg南瓜：4000ml水）所得南瓜母液，每100ml母液添加14g白沙糖、0.18g柠檬酸的甜酸型南瓜茶饮料和每100ml母液添加14g白砂糖、0.2g柠檬酸、0.09g食用盐配方而成的复合风味南瓜茶饮料的生产技术。