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Aufnahme und Verwertung von Phosphor und Kalium durch CCM‐Mais bei differenzierter PK‐Düngung
Author(s) -
Müller S.,
Weigert I.
Publication year - 1991
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1111/j.1439-037x.1991.tb00943.x
Subject(s) - potassium , chemistry , phosphorus , fertilizer , zoology , dry matter , agronomy , human fertilization , potash , nitrogen , horticulture , biology , organic chemistry
Uptake and utilization of phosphorus and potassium by CCM‐maize in relation to different PK‐fertilization The influence of different PK‐fertilizer‐application (0/500/1000 mg P pot −1 with 6 kg soil before seeding and as fluid or granuled fertilizer to 15 cm plant height in combination with 0/1500 (3000 mg K ‐ pot −1 ) on PK‐uptake and dry matter production of CCM‐maize for six different stages of development was investigated. For all six times a distinct connection between quantity of P‐fertilizer and P‐content resp. ‐uptake is described. For potassium is these not so clear, although the uptake is quicker than phosphorus. In combination of PK‐proportions and PK‐content resp. ‐uptake draw a conclusions on the yield, but not in consideration PK‐proportions resp. ‐uptake only. Limitation values are discussed. P‐applications to 15 cm plant height is little effective.