How understanding soil chemistry can lead to better phosphate fertilizer practice

Phosphate effectiveness decreases with time and re-application to the soil is therefore necessary.
The direct assimilation of inorganic and organic forms of nitrogen by higher plants

Nitrogen-containing compounds can be readily assimilated, assimilated, likely not assimilated or toxic to plants.
Soil organic nitrogen: an overlooked but potentially significant contribution to crop nutrition

Soil organic matter compounds get transformed into organic nitrogen forms that plants take up.
Long-term fate of fertilizer sulfate- and elemental S in co-granulated fertilizers

Long-term trials needed to evaluate effectiveness of slow-release fertilizer source such as elemental sulfur
Nitrogen release from granules of sulfur-coated urea

Microbes break down the outside layer of sulfur coated urea granules so that urea is released.
Predicting the lime requirement of soils under permanent grassland and arable crops

The precise lime requirement varies with soil type, initial soil pH, fertilizer nitrogen application, and the grown crop
Liming agricultural soils in Western Kenya: Can long-term economic and environmental benefits pay off short term investments?

Applying lime can reduce soil acidity and increase crop harvest yield
Production of Nitrous Oxide by Ammonia-Oxidizing Chemoautotrophic Microorganisms in Soil

Microbial nitrification converts ammonium to nitrate in soils.
New N2O emission factors for crop residues and fertiliser inputs to agricultural soils in Germany

Nitrous oxide is a stable greenhouse gas that depletes ozone in the stratosphere.
What is a plant nutrient? Changing definitions to advance science and innovation in plant health

A mineral plant nutrient is needed for plant growth and development or for the quality attributes of the harvested product.