crop needs 中文意思是什麼
crop needs
解釋
作物需水量-
The author gives the general situation of using non - metallic minerals, such as kieselguhr, sepiolite, zeolite and bentonite, as carriers of chemical fertilizers and modifying the fertilizers to become long - acting ones, so as to cause the release of the available constituents of the fertilizers to be in balance with the crop needs, raise the use ratio of these components, and reduce environmental pollution
筆者介紹了用矽藻土、海泡石、沸石、膨潤土等非金屬礦物質作化肥載體，將肥料改性成為長效肥，使肥料的有效成分的釋放與作物的需求平衡，以提高有效成分的利用率，同時減輕環境污染的概況。 -
Dry matter and yield decrease with salt increasing on same irrigation level. ( 4 ) the minimal soil moisture content increases with salt content increasing. meeting minimal needs, crop yield is satisfactory in the soil with salt content bellow 0. 6 %, but not in soil salt content above 0. 6 %, so planting in this soil is n ' t suggested
（ 4 ）隨著土壤鹽分增加作物對土壤水分要求也增加，含鹽0 . 6 %以下的土壤滿足最低水分要求，可獲較理想產量，大於0 . 6 %以保持土壤水分狀態減輕或消除鹽分脅迫的措施已經不可行，建議不使用含鹽> 0 . 6 %的耕地。
分享友人