精品文档---下载后可任意编辑园艺专业英语翻译（中→英）Lesson1 part A1、protected (structure) horticulture is defined as a cultivation method taking use of heat keeping ,chilling prevention or cooling and rainproof facilities to prevent the crops production from being influenced or seriously done by natural seasons and to artificially create a microclimate environment suitable for growing horticultural crops in cold or hot weather hat actually unfavorable to the crop development .it is also termed as out-of-season culture ,season-off culture or forcing culture .because of the season in which horticultural crops are planted is hand for their growing in open field.2、Windbreak、cold –frame 、hot-frame、 plastic-clad tunnel and greenhouse could provide a variety of vegetable seeding for open field or protected culture or protect seeding of cold tolerant vegetable living through the winter ,for early planting and acquirement of early mature products.3、In respect of structure type, the largest horticultural structure area in our country consists of plastic tunnels and lean to houses, especially the energy-sawing solar greenhouse, which has become the dominant greenhouse type in the country. Presently the development of large greenhouse or multi-span house has been initiated. Lesson2 part A4、In horticultural crop cultivation under structure the key point of environment management for growers is to create optimal complex of environmental conditions for crop growth and development, as possibly as they can, according to properties and environmental demand of crop. Lesson3 part ALesson4 part A1、most soil amendments are consisted of the increasing of organic matters ,addition of specific nutritional elements and ph adjustment 2、the ...
