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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。
- As a now oil crop, the high oil corn has an expansive application prospect. 摘要高油玉米籽粒的含油量高达7%25~10%25,作为一种新的油料作物,具有广阔的应用前景。
- Thirty percent of the farmland has been planted to oil crops. 百分之三十的农田已种上油料作物。
- Large acreages have been planted to oil crops. 大面积土地已种上油料作物。
- 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”。
- Eruca Sativa Mill, an oil crop of the Cruciferae family, is one of the Cruciferae plants most resistant to drought and barren. 芸芥(Eruca Sativa Mill)是十字花科芝麻菜属的一个种,是迄今为止人们发现的最为抗旱、耐瘠薄的十字花科油料作物。
- In order to achieve effective supply of oilseeds and oil in China, energetic efforts should be made to develop oil crop production, especially soybean, ... 近期内要在适度进口油料的同时,严格控制食用油脂的进口量。
- 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。
- Thirty percent of the farmland have been planted to oil crops. 百分之三十的农田已种上油料作物。
- Development of the farm crop pest database 农作物害虫数据库的研制
- Pest insect in loquat and its no pollution control 枇杷害虫与无公害综合防治技术
- crop pest monitoring and pre-waming 监测预警
- Thirty per centum of the farmland has been planted to oil crops. 百分之三十的农田已种上油料作物。
- 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。
- 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 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
- 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。
- Habituation of pest insects to repellents or insecticides may significantly reduce the effects of these control agents. 害虫对驱避剂或杀虫剂等产生习惯性反应可降低其防治效果。