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Potassium leaching in soil as affected by potassium fertilizer rates applied over pearl millet straw

Ciro Antonio Rosolem, Rodrigo Arroyo Garcia, José Salvador Simoneti Foloni, Juliano Carlos Calonego

01/Oct/2006

The presence of straw on soil surface affects K cycling in the production system and can affect soil chemistry by modifying K leaching rate and intensity. An experiment was conducted to evaluate K leaching as affected by 30 mm of simulated rain over pearl millet straw receiving several broadcasted K rates. Pearl millet was grown for 55 days in a green house and then cut at soil level into pieces of 3 to 5 cm. Then it was distributed over the […]