Simulating nutrient stress effects on phenological development in maize
Material type:
TextSeries: CIMMYT NRG-GIS Series ; No. 00-01Publication details: Mexico, DF (Mexico) CIMMYT : 2000ISBN: - 970-648-47-1
- 1405-7484
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| Reprint | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Publications Collection | Look under series title (Browse shelf(Opens below)) | Available |
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| Look under series title Wheat breeding and pathology in Tanzania | Look under series title What does CIMMYT have to offer East and Central Africa vis-a-vis increased wheat production | Look under series title Wheat diseases in Ethiopia | Look under series title Simulating nutrient stress effects on phenological development in maize | Look under series title Use of linear regression and a correlation matrix to evaluate CERES3 (Maize) | Look under series title Can contemporary wheat models simulate grain yield accurately in low-potential environments? | Look under series title Asian Regional Maize Workshop, 4 |
Crop growth simulation models for maize reliably predict effects of temperature and photoperiod on crop duration, a major determinant of yield. But they usually ignore possible effects of extreme high/low temperatures, drought stress, or nutrient deficiencies on duration. Drought stress and nitrogen and phosphorus deficiencies during the vegetative phase can delay tassel initiation and silking. Similarly, stresses during ripening can cause early senescence and maturity. Thus, harvest management, yield forecasting, and planting of the subsequent crop can be affected. The performance of a modified maize model that simulates the effect of N deficiency on phyllochron and phenological stages is described and compared with actual data from maize trials in Nigeria, Hawaii, and Florida
English
0010|AGRIS 0101|AL-Maize Program
Jose Juan Caballero
CIMMYT Publications Collection