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- Pest insect community on orange leaves is analyzed with fuzzy cluster method. 经模糊聚类分析表明,柑桔叶片害虫群落由3个集群和3个边缘种组成。
- The fifth section explores the bargaining relationship between sugar crop growing farmers and sugar processing enterprise. 第五是制糖企业与糖料农户之间的交易关系;
- This research applies to the numerical technique in the agriculture production and the agriculture educations, combining the agriculture production actual, built up “the farm crop pest database". 开发研究了把数字技术应用到农业生产以及农业教育中,并结合农业生产实际,建立了“农作物害虫数据库”。
- An insect pest fatal to cotton had struck the crop. 棉花遭受了一种致命的虫害。
- Beneficial insects are allowed to flourish to keep pest insects in check. 益虫得以繁衍,以遏制害虫的数量。
- Development of the farm crop pest database 农作物害虫数据库的研制
- crop pest monitoring and pre-waming 监测预警
- The planting areas for sugar crops and cotton declined. The planting areas for oil-bearing crops and vegetables increased. 糖料、棉花种植面积减少,油料、蔬菜种植面积增加。
- Pest insect in loquat and its no pollution control 枇杷害虫与无公害综合防治技术
- The biofuel industry is gobbling up an increasing share of the corn and sugar crops. 生物燃油行业消耗了大量的谷物和糖料。
- pest insect of silkworm and mulberry tree 蚕桑害虫
- Entomogenous fungus is an important pathogenic germs of crop pests and is ubiquitous in natural environment. 虫生真菌是农作物害虫的一类重要致病菌,广泛分布于自然界。
- The output of oil- bearing crops should reach 23 million tons,sugar crops,87 million tons,meat,56.5 million tons,and aquatic products,38 million tons. 油料2300万吨,糖料8700万吨,肉类5650万吨,水产品3800万吨。在保持产量稳定增长的同时,努力扩大市场需要的优质品种的生产。
- A nonpersistent chemical,C4H7O4PBr2Cl2,used for mosquito control and as an insecticide against crop pests. 二溴磷一种非永久性化学药品,C4H7O4PBr2Cl2,用来抑制蚊子并作为杀死农作物害虫的一种杀虫剂
- Improving sugar crops’ sucrose and factory’s total recovery rate could remarkably reduce sugar production cost, so enhance profit margin. 提高甘蔗蔗糖分和总回收率可以显著地降低制糖成本,从而提高利润率。
- The SIT operations conducted in Mexico were successful in reducing the number of pest insects significantly. 墨西哥运用了这种方法,成功地把害虫的数目大大减少。
- A nonpersistent chemical, C4H7O4PBr2Cl2, used for mosquito control and as an insecticide against crop pests. 二溴磷一种非永久性化学药品,c4h7o4pbr2cl2,用来抑制蚊子并作为杀死农作物害虫的一种杀虫剂
- The output of oil- bearing crops should reach 23 million tons, sugar crops, 87 million tons, meat, 56.5 million tons, and aquatic products, 38 million tons. 油料2300万吨,糖料8700万吨,肉类5650万吨,水产品3800万吨。在保持产量稳定增长的同时,努力扩大市场需要的优质品种的生产。
- Abstract: Phthorimaea heliopa (Loew) is one of the main pest insects for tobacco. 文章摘要: 烟蛀茎蛾是烟草的主要害虫之一,幼虫钻蛀烟茎,烟株生长缓慢.新叶簇生,植株矮小.产量和质量明显下降。
- With the development of the research, Entomogenous fungus will contibute more to crop pests management in the futrue. 随着研究的不断深入,虫生真菌具有广阔的应用前景。