Questions in plant-nutrition

Select	Question
	Hydroponics is a method of
	In hydrophytic plants, water and salts are absorbed by
	Which one is not an essential element in plants
	Minerals of soil are derived from
	If a dried leaf is taken in a crucible and heated to 600 °C a gray coloured powder is left behind. It is referred to as
	Aeroponic is also called as
	Which one of the following scientists used the nutrient culture solution in hydroponic cultures
	Which group of element is not essential for a normal plant
	The charcoal culture experiment is better than water culture experiment because
	Technique of growing plants without soil in nutrient solutions is called