论文部分内容阅读
75.什么是无土栽培? 无土栽培又叫营养液栽培,它是一种不用天然土壤,而把作物栽在营养液中,或栽培在草炭、(石至)石、砂子、岩棉、锯末、珍珠岩、塑料泡沫等基质中,进行定时定量的滴灌或循环水法供给作物营养液的栽培新技术。无土栽培的特点是,不依附大自然,采用人工调控技术来满足作物根系所需的环境和营养条件,取代土壤环境条件,使作物发挥更大的增产潜力。因此,可以说无土栽培是农业栽培史上的又一次“绿色革命”,也是当今世界上发展较快的一门高新技术学
75. What is soilless culture? Soilless culture, also known as nutrient solution cultivation, it is a non-natural soil, and the crops planted in nutrient solution, or cultivation in peat, (stone to) stone, sand, rock wool, Sawdust, perlite, plastic foam and other substrates, the timing quantitative drip irrigation or circulating water supply of crop nutrition solution cultivation of new technologies. Soilless culture is characterized by not using nature, using artificial regulation technology to meet the crop’s root environment and nutritional requirements, replacing the soil environmental conditions, so that crops to play a greater potential yield. Therefore, it can be said that soilless culture is another “green revolution” in the history of agricultural cultivation and also a rapidly developing high-tech academy in the world today