Does a plant take nutrients only at (a) particular time(s) of the day or is it a continuous process? there are 16 elements that a plant essentially needs. all these elements are daily taken up by the plant or at every growth stage, the requirement varies? if it varies with the growth stage, which of the elements are needed during tillering/branching stage? which of the nutrients are required at the flowering stage and which of the nutrients are required at the fruiting stage?