Impact of the fertilizing of barley as predecessor on the corn's yield from carbonate black soil
2000
Stamboliev, M. | Davidkov, E. | Georgiev, D. (Kompleksna Opitna Stantsiya, Lom (Bulgaria))
After fertilizing with N8 and N16 of corn grown on carbonate black soil, the combined fertilizing of the barley as predecessor with N8P6 and N8P10K6 provides for the increase of grain's and foliar mass' yields from the corn. This is statistically proved towards the yields obtained after predecessor's fertilizing with N8 and N16. This is valid both for the favorable and for the moderately faborable years for corn's development with a 52-65% probability for the carbonate black soil zone. After a more intensive corn's fertilizing with N16K10 and N20P6K10, the predecessor's fertilizing does not impact the grains' and foliar mass' yields from the corn. The devastation caused by one extensive hailstorm (70% of the foliar mass were liquidated) eliminates the impact of the corn and its predecessor's fertilizing. That gives reason to qualify such years as moderately favorable for corn's development, with characteristic droughts during the vegetation period with probability of 30-32%.
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