Magnesium Nitrate Horticultural Grade

Hydroponics

Mentioned concentrations represents the amount of nutrients in the stock solution. The final concentration in the irrigation water depends on the amount of nutrients in the stock solution, the injection ratio and the amount of nutrients used in the water.

Fertigation

Crop	Application date	Min kg/ha/season	Max kg/ha/season
Fruit trees	• As of end of flowering	100	200
Vegetables	• As of vegetative growth • Until fruit setting	150	300
Potato	• As of tuber setting • Until tuber filling	100	200
Tomato	• As of 4 weeks after planting • Until fruit ripening	150	300
Vineyards (adult)	• As of leaf bud opening • Until beginning of flowering	100	150

Foliar Application

Crop	Application date	Min kg / ha / appl	Max kg / ha / appl	Conc. % (w/v))
Fruit trees	3 - 4 applications: • As of end of flowering • 10 - 14 days interval	3	8	0.5 - 1.5
Cereals	1 - 2 applications: • As of stem elongation • Until flowering starts	3	6	1.0 - 1.5
Citrus	2 - 4 applications: • Spring application • As of vegetative growth	5	10	1.0 - 2.0
Olive	2 applications: • During flower bud opening • During fruit setting	3	9	0.5 - 2.0
Corn	1 - 2 applications: • As of 5 - 6 leaf stage • 10 - 14 days interval	3	6	1.0 - 1.5
Sugarbeet	2 - 3 applications: • Spring application • 10 - 14 days interval	3	8	1.0 - 2.0
Rapeseed	1 - 2 applications: • As of vegetative growth • Until flowering starts	3	6	1.0 - 1.5
Vineyards (adult)	3 - 4 applications: • As of vegetative growth • 7 - 10 days interval	3	9	0.5 - 1.5%
Melon	2 - 5 applications: • As of vegetative growth • Until flowering starts • 7 - 10 days interval	3	10	0.5 - 1.5

In case of foliar feeding as part of a mix with crop protection products, a compatibility test has to be done prior to preparing the spray-mix.

The mentioned indicated dosages and application stages are given as a guideline. Exact dosages, concentration and application stage are subject to local conditions, use of other fertilizers and can only be given after an objective diagnosis.