Highlights

Phosphogypsum and phosphate sludge
In pursuit of new agricultural applications for phosphogypsum and phosphate sludge
Phosphate sludge: fertiliser, soil amendment and compost material
Phosphogypsum: soil conditioner and source of macronutrients

Arable farming
Earthworms enhance solubility of soil phosphorus significantly
Phosphate fertiliser in the seed furrow: use a narrow opener spread
Little-known nitrification pathway more important than previously thought
Effect of nitrification inhibitor from rice roots differs per soil type

Potato nutrition
Fertilising potatoes via soil-applied mustard seed meal extract

Grass and forage
Selenium nutrition can improve forage digestability

Fruits and vegetables
Foliar-applied nutrients enhance disease immunity
Soil treatment with sulphur compounds reduces Allium white rot inoculum
Sweeter lettuce by short-term pre-harvest nitrogen limitation

Ornamentals
Novel calcium chelate outperforms foliar-sprayed phosphite

Plant and soil analytics
Profit-maximizing potassium fertiliser recommendations for US Mid-South crops
Camera-equipped drone detects nitrogen-deficient apple trees

Organic fertilisers
Optimising the benefits of applying organic fertilisers
Phosphate fertiliser value of recovered and organic fertilisers

Fertilisers
Effect of nitrification inhibitor from rice roots differs per soil type
Thiols improve regreening of iron-deficient soybean
Layer-wise agglomeration of urea-gum mixture into slow-release fertiliser
Waste sulphur co-granulated into fertiliser products

Ammonia emissions
Combustion processes cause a lot of ammonia emissions

Silicon
Barley seed priming with sodium silicate increases salt tolerance
Soil-applied silicon reduces yellow stem borer damage
Seed priming with calcium silicate increases the resistance of lettuce against downy mildew

Results of reader survey
Results of the Plant nutrition courier reader survey

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