水培作物生长所需营养液投放周期模型  

Cycle model of sprinkling the required nutrition liquid for growth of hydroponic crop

作　　者：于淑妹[1,2] 杨俊仙[1,2] 曹宗宏[1,2] 

机构地区：[1]安徽农业大学理学院应用数学系,安徽合肥230036 [2]安徽农业大学理学院应用数学研究所,安徽合肥230036

出　　处：《阜阳师范学院学报（自然科学版）》2016年第2期24-27,共4页Journal of Fuyang Normal University(Natural Science)

基　　金：国家自然科学基金项目(11201002);安徽农业大学校级质量工程项目(2015039)资助

摘　　要：为了水培作物更加健康快速的生长,同时又考虑到营养液的成本,将普遍采用的一次性投放足够量的营养液转变为分时分阶段的投放。在此基础上建立两个阶段的数学模型,即作物定植前在基质中仅靠水源生长阶段,以及定植后投入一定量一定浓度的营养液后的生长阶段。最后以水培意大利生菜为例,测量出各阶段开展度的数据,并用Matlab给出时间与作物生长量之间关系的图像。A time-phased sprinkling is adopted instead of a disposable sprinkling sufficient amount of nutrient solution in order to make hydroponic crop grow more healthily and rapidly, and regarding the cost of nutrient solution. The mathematical model of two phase is established on its basis, namely growth phase on crop abutting the water when transplanting, as well as the growth phase on a certain amount and a certain concentration of nutrient solution. Finally taking Italy Hydroponic Lettuce as an example, measure data of their development, then draw its relationship image between time and crop growth with the help of Matlab.

关 键 词：营养液 周期 模型 

分 类 号：O175.1[理学—数学]