None regularly looks at tropical crops.
没有一个试验定期地研究热带作物。
Hainan Island, which is almost as big as Taiwan, has abundant natural resources, such as rich iron ore, oil and natural gas, as well as rubber and other tropical and subtropical crops.
海南岛和台湾的面积差不多，那里有许多资源，有富铁矿，有石油天然气，还有橡胶和别的热带亚热带作物。
Anthracnose is one of the most important plant diseases worldwide, which could seriously infect many crops, especially in tropical and subtropical regions.
炭疽病是世界性的植物病害，对许多作物构成严重威胁，尤其在热带、亚热带地区。
Hainan is the main production area for tropical cash crops such as rubber, coconuts, oil palms, sisal and pepper, etc.
海南岛是橡胶、椰子、油棕、剑麻、胡椒等热带经济作物的主要产地。
Citrus is one of the most important fruit tree crops and widely cultivated in the tropical and subtropical areas in the world.
柑桔是世界最重要的经济作物之一，在热带和亚热带地区广泛栽培。
Yunkai Great Mountain is located in the Southern fringe of south subtropical zone. There is enough heat for planting subtropical crops but not for tropical crops.
云开大山位于南亚热带南缘，种植亚热带作物热量有余，种热带作物常常不能安全越冬。
Investigations revealed that sooty moulds caused various damage to tropical fruit crops on Hainan Island, 9.8 Per cent yield loss was resulted from extremely severe disease.
在海南等地的调查、测定结果表明，煤烟病对热带果树有一定为害性。 在特别重病的情况下，芒果产量损失9．8％；
A bacterial leaf spot on Clausena lansium(Lour)Skeels was observed at the cam- pus of South China College of Tropical Crops in recent years.
近年来，华南热带作物学院校园内的黄皮树叶片发生一种细菌性叶斑病。
A bacterial leaf spot on Clausena lansium(Lour)Skeels was observed at the cam- pus of South China College of Tropical Crops in recent years.
近年来，华南热带作物学院校园内的黄皮树叶片发生一种细菌性叶斑病。
应用推荐