Optimale Stickstoffduengung zu Mais mit der Nmin-Methode.
1995
Walther U.
Late N application at the 6-8-leaf stage showed a significantly higher and more constant yield effect than early application at planting. The Nmin content of the soil in the layers 0-30, 30-60, and 60-100 cm at the 6-leaf stage is well suited to optimise N fertilisation. The prediction accuracy of the Nmin method can be improved by examining the content of each layer separately and by taking into account a possible winter hardy green manure as well as the organic matter and clay contents of the upper soil layer. The analysis of the lowest soil layer and ammonium content also contributed significantly to the prediction reliability.
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Эту запись предоставил Wolters Kluwer