有关科技的内容!用英语写的!

来源:百度知道 编辑:UC知道 时间:2024/06/07 08:54:21
要有题目,五六篇左右.单词不能少于100个!
题目也要用英语写!

无土栽培
Non- earth cultivation not only province water, moreover the provincefat, the general statistics reveals the earth cultivation nutrientloss ratio approximately about 50%, our country countryside becausethe science applies fertilizer the technical moisture content lowly,fertilizer use factor lower, only 30 - 40%, half many nutrient alllost, the fertilizer dissolution and is absorbed in the soil by theplant the favorable process very complex, not only has very loses,moreover each nutritive elements loss different, causes in the soilsolution between various elements to be very difficult to maintain thebalance. But in the non- earth cultivation, the crops need eachnutritive elements, is artificial compounds the nourishing creamemployment, not only cannot lose, moreover the maintenance balance,according to the crops type as well as the identical crops' differentbirth stage, scientifically supplies the nutrient, therefore cropsgrowth growth vigorous and healthy, the fresh gr