Two articles on crop N management following the 2012 North American Drought have been published recently. The articles are titled "Drought, Nitrogen and Water Quality?" and "Capturing Residual Soil Nitrogen with Winter Cereal Cover Crops".
Kieserite is a naturally occurring mineral that is chemically known as magnesium sulfate monohydrate (MgSO4.H2O). It is mined from geologic marine deposits and provides a soluble source of both Mg and S for plant nutrition.
From the pages of Better Crops with Plant Food
IPNI was a major sponsor of the 5th International Nitrogen Conference held in New Delhi, India.
Nitrogen — Plants cannot survive without nitrogen (N). Healthy plants contain up to 5% of this vital nutrient and the Earth’s atmosphere is about 78% N…it is all around us. There are approximately 75 million lb of N in the atmosphere above each acre. Huge amounts of N are also present in soils, water bodies, and fossil fuels. But although N is in abundant supply, it must be converted to a different form before plants can use it.
Nitrogen Program Director