E-mail Newsletter May 2014

This e-mail newsletter is the notification of the February 2014 issue that has just been published. The April 2014 issue will follow shortly afterwards.

Potassium bicarbonate desorbs phosphate from soil. Cornell University researchers therefore suggest this alkaline compound to replace or reduce starter phosphorus fertiliser on sandy soils rich in phosphorus. Read more in the just published February 2014 issue of the Plant nutrition courier.

Elevated levels of carbon dioxide inhibit the assimilation of nitrate into proteins. Plant scientists at UC Davis have found this in conserved leaves of wheat plants that have been exposed to different CO2 levels.

Nitrogen form and concentration are useful to estimate the acidity or basicity of blended water-soluble fertilisers. Plant species also largely influence the pH level of the growing medium of bedding plants, researchers have found.

● Reduction of phosphorus limitation reduces soil nitrous oxide emission
● Mineral concentrate effective substitute for conventional fertiliser
● Seed tuber treatment with potassium phosphite
● Novel iron chelates alleviate salt stress
● Purslane desalinizes greenhouse recirculation water
● Fertiliser nutrient imbalance to limit food production in Africa
● UV-screening by plant silica layer
● Increasing magnesium saturation enhances penetration of P fertiliser

● New plant nutrition apps
● N management tool available for commercial use
● Slow-release Mg
● Non-proprietary USDA ARS soil test now available

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