People plant a great number of young trees in the mountains.When the trees grow big and tall enough, they are cut down by workers and carried out of the mountains to the paper mill where fine paper is made from wood.Then it is taken to every corner of the country and used for differe...
Growing peas in a greenhouse allows you to have fresh peas all year round. In fact, warm weather often adversely affects pea pod production, so save the summer garden space for warm-weather plants instead. Prepare the soil in the containers. Peas prefer loose, well-draining soils with a pH...
A. how greenhouses grow plants B. gases in the atmosphere trapping heat C. the color of plants D. how people build houses 相关知识点: 试题来源: 解析 B。解析:温室效应与大气中的气体吸收热量有关。greenhouse effect是温室效应的意思,大气中的一些气体(如二氧化碳等)像温室的玻璃一样,困住热量,...
thin out weak and spindly plants as they grow. If you grow plants in containers, set each container far enough apart that air can pass freely between the plants. This will help deter sickness and diseases. You may wish to include a fan in the greenhouse to stir the...
and while some locations make it easy to keep them at optimal temperatures and humidity levels, in most cases, they need a little help. Depending on the type of climate a greenhouse is built in, there are a number of different management strategies that can be employed to keep plants happy...
All you need to know about planting, propagating and caring for sunflowers, with tips on the best varieties to grow. Expert advice from BBC Gardeners' World Magazine.
Step 1. The greenhouse base Use 4″ x 4″ (100 mm x 100 mm) treated, or natural decay-resistant, sawn wood to make the base. Make a rectangle 8ft” x 10ft” (2400 mm x 3000 mm) as shown in the drawing above. Fix the wood together in the corners by using galvanized nails and...
David McKinney is an experienced plantsman sharing his expertise in horticulture. His knowledge spans landscape management, growing plants indoors and in the greenhouse, ecological plant selection, and much more. With nearly 15 years in the industry, he is well versed in both herbaceous and woody ...
Farmers plant the seeds of pumpkins in a greenhouse in spring.The ground is dark and wet in the greenhouse.Then farmers wait for three weeks.The seeds grow into little plants.The plants have roots under the ground.They have leaves above the ground....