对农村住房现状的调查研究及分析——以雅安为例          下载免费PDF全文

吴雪  胡建  余俊洁  张崇铭  龚标  郑伟  朱元春 《农学学报》2011,(6)

为指导新农村住房建设,对雅安7县1区农民住房的问卷调查和实地调查,包括住房面积、结构、形式、材料、层数、设计的方式、住房成本、现有住房满意度等,分析了当地农村住房的现状以及存在的问题,探讨了存在问题的原因。提出走社会主义新农村的新型住房之路,即向着节约节能、设计合理、住房美观、功能明确、安全舒适、满足不同人群需要的新型住房方向发展。提倡和谐住房,住房与环境、人与住房走可持续发展之路。  相似文献   

热带农业科技国际合作区域发展战略研究     

张雪  蒋昌顺 《热带农业工程》2011,(5):65-67

通过分析国际热带农业发展趋势,结合我国热带农业发展情况,探讨中国在亚非拉及南太岛国地区热带农业科技国际合作的区域发展战略,更好地为我国热带农业科技创新和国家外交服务。  相似文献   

广西铁皮石斛规范化生产标准操作规程   总被引：4，自引：0，他引：4  

蒙平  庾韦花  张向军  潘颖南  文学 《广东农业科学》2011,38(11):45-47

以<中药材生产质量管理规范>(GAP)为指导原则,对广西铁皮石斛栽培生产的产地环境、种苗品种和标准、栽培技术措施、采收加工、包装、运输及档案等一系列过程开展研究.确定各个生产环节的最佳指标和方法,制定了广西铁皮石斛规范化生产标准操作规程.  相似文献   

大豆生育期降水量与油分含量的相关分析   总被引：1，自引：1，他引：0  

陈庆山  裴宇峰  蒋洪蔚  刘业丽  何琳  栾怀海  刘春燕  韩雪  胡国华 《东北农业大学学报》2011,42(7):15-19

试验采用27个大豆品种,结合大豆生育期每月降水量,采用随机区组设计,研究了降水量对大豆籽粒油分含量的影响和不同类型品种油分含量与降水量的关系.结果表明,除8月份外,大豆品种油分含量与生育期各月份降水量都达到5%显著水平以上的负相关.6月份和7月份的降水对大豆油分含量形成起到了重要作用.此外,7月份降水对高油大豆品种油分...  相似文献   

基于耕地地力评价的基本农田调整研究——以贵州省金沙县城关镇为例   总被引：3，自引：2，他引：1  

舒锟  何腾兵  王仕玥  高雪  彭志良  韩峰  赵泽英  童倩倩  杨莉  金蕾 《天津农业科学》2011,17(2):42-46

通过对研究区进行耕地地力评价,并将评价成果应用于基本农田调整,借助于GIS空间分析技术,得出研究区耕地质量优良的二、三级地的基本农田比重过小,而耕地质量低劣的四、五级地的基本农田比重过大。因此,结合研究区的实际情况进行了各级地基本农田分布调整,将二级地中基本农田的比重由36.26%调升为75.05%;将三级地中基本农田的比重由78.99%调升为84.96%;将四级地中基本农田的比重调低3.7%;将五级地中基本农田的比重由82.68%调低为65.36%。  相似文献   

胆木硬枝扦插育苗研究   总被引：1，自引：1，他引：0  

王和飞  陈道运  王雪 《天津农业科学》2011,17(4):57-60

以1年生胆木萌芽条作试验材料,对不同径段、不同生根剂种类和浓度及不同基质进行生根培养试验。结果表明:本试验研究范围内比较理想的生根剂种类为ABT-1,浓度为800倍溶液,适合扦插的插穗径段为0.5～1.0cm,最好的基质为砖红壤土。  相似文献   

日粮中添加红花油对生长育肥猪生产性能和胴体品质的影响     

金文吉  耿春银  严昌国  赵雪  金英海 《延边大学农学学报》2011,33(4):262-266

研究日粮中添加不同水平的红花油对生长育肥猪生长性能和胴体品质的影响．日粮中添加红花油水平分别为0,0．4％,0．6％,0．8％和1％．结果表明：添加红花油的各试验组的平均日增重、粗蛋白、粗脂肪、粗纤维等消化率显著提高（P〈0．05）,饲料利用率得到改善;各试验组猪的屠宰率和瘦肉率显著高于试验组1,眼肌面积、脂肪酸含量也比试验组1得到提高,降低了胆固醇含量,改善了猪肉品质．  相似文献   

Effects of dietary copper sources on growth,tissue copper accumulation and physiological responses of Japanese sea bass (Lateolabrax japonicus) (Cuvier, 1828) fed semipurified or practical diets          下载免费PDF全文

Lan‐mei Wang  Jia Wang  Anant S. Bharadwaj  Min Xue  Yu‐chang Qin  Xiu‐feng Wu  Yin‐hua Zheng  Fang Han 《Aquaculture Research》2015,46(7):1619-1627

An 8‐week trial was conducted to compare the efficacy of a chelated copper (Cu) with the inorganic Cu (CuSO₄), in the diet of Japanese sea bass (Lateolabrax japonicus). Six diets were prepared based on two basal diets (semi‐purified or practical) at two Cu inclusion levels (0 and 4 mg kg^?1 from or chelated‐Cu), accordingly named as S0, SI4, SM4, P0, PI4 and PM4 respectively. Each diet was fed to quadruplicate groups of Japanese sea bass (initial weight: 65.0 ± 0.03 g) during the trial. Fish fed practical diets had higher feed intake, specific growth rate, protein efficiency rate (PER), liver Cu accumulation, liver Na⁺K⁺‐ATPase and plasma alkaline phosphatase, but lower hepatosomatic index than the groups fed semi‐purified diets (P < 0.05). Higher PER was exhibited by fish fed chelated‐Cu diets than that of fish fed CuSO₄ diets (P < 0.05). Although liver Cu accumulation was significantly higher in fish fed practical diets,, liver Cu content increased significantly with increasing dietary copper levels only in fish fed semipurified diets. Chelated‐Cu has higher efficiency than CuSO₄ when fed in practical diets. Poor growth performance of fish fed semipurified diets might induce underestimating the nutrient requirement of Japanese sea bass.  相似文献   

A simple method based on laboratory inoculum and field inoculum for evaluating potato resistance to black scurf caused by Rhizoctonia solani     

Xiao-Yu Zhang  Xiao-Xia Yu  Zhuo Yu  Yu-Feng Xue  Li-Peng Qi 《Breeding Science》2014,64(2):156-163

A two-step method was developed to evaluate potato resistance to black scurf caused by Rhizoctonia solani. Tuber piece inoculum was first conducted in the laboratory, which was also first reported in this study. After inoculation with pathogen discs and culture for 48 h, the necrotic spots on the inoculated potato pieces were generated and measured by the crossing method. Further evaluation was conducted through field experiments using a wheat bran inoculum method. The wheat bran inoculum was placed into the pit dispersedly and surrounded seed tubers. Each cultivar or line was subjected to five treatments of 0-, 2-, 3-, 4-, and 5-g soil inoculum. The results showed that 2–4 g of wheat bran inoculum was the optimum for identifying tuber black scurf resistance. The laboratory scores positively correlated with the incidence and severity of black scurf in the field. According to the results in the laboratory, relatively resistant cultivars could be selected for further estimation of tuber black scurf resistance in field experiments. It is a practical and effective screening method for rapid identification of resistant potato germplasm, which can reduce workload in the field, shorten time required for identification.  相似文献   

甜菜不同基因型品种光合特性比较   总被引：2，自引：2，他引：0  

于超  邵科  刘雪  朱芳慧  张少英 《中国农学通报》2014,30(27):38-42

发展甜菜生产进一步提高其产量和含糖率,对发展工农业生产、增加农民收益有重要的意义。以丰产型和高糖型甜菜品种为材料,研究比较不同基因型品种光合特性及其与产质量形成的关系。结果表明：不同基因型甜菜在各生育期叶片SPAD值、光合速率、气孔导度、胞间CO₂浓度和蒸腾速率的动态变化趋势不同,且存在显著差异。苗期丰产品种的胞间CO₂浓度低于高糖品种。叶丛快速生长期丰产品种气孔导度低于高糖品种。块根及糖分增长期丰产品种光合速率高于高糖品种。糖分积累期丰产品种叶片SPAD值低于高糖品种,胞间CO₂浓度高于高糖品种。叶丛快速生长期、糖分积累期丰产品种蒸腾速率低于高糖品种。  相似文献