Temperatures are at the highest in the month of July and August with temperatures reaching high as 40 °C. Temperatures are recorded the lowest in late January and early February with temperatures reaching less than 5°C. ETO is highest in the month of June to July with records reaching up to 7mm. The month of December and January record the least ET0 at an average of 1mm a day. The ideal period to grow crops in Cordoba is from January after which they will take 4 months to be harvested. The major climatic constraints include high temperatures. Cordoba experiences high temperatures in the mid year. The increasing temperatures occur in the summer season after which most of the crops have already been harvested. Increasing Carbon dioxide in the atmosphere is also high from June to December and is increasing at an increasing rate. Carbon dioxide should not be directly proportional to the oxygen released to the atmosphere. Increase in carbon in the atmosphere lead to low productivity. Increased carbon dioxide in the atmosphere may have direct impact on agriculture productivity. This may also lead to extreme weather. A warmer climate could bring low rainfall which results to low water availability.
The maize sown on 15th February yielded 2.726 with a biomass of 8.388 ton/ha with a potential biomass of 18.314 ton/ha both in ratio of 46% with a water productivity of 1.01kg yield per m3 evapotranspired. Canopy Cover (CC) of the maize sown in 15th February increased from 0 to 96% at the 15th day to 40th day and reduced from 85th day up to 111th day.