Agronomic Response of Corn (Zea mays L.) Hybrids to Plant Populations

Table 1

Average monthly rainfall and air temperatures during the growing season in 2016 and 2017 compared with the 30-year average.

Month	2016	2017	30 yr avg^a
Rainfall (mm)
March	231	63	135
April	84	328	116
May	67	165	120
June	148	195	137
July	113	104	112
August	349	280	104
Total	992	1135	724
Air temperature (^oC)
March	17.7	17.9	15.6
April	20.2	20.8	19.4
May	23.1	22.0	23.9
June	26.4	25.3	27.2
July	27.8	27.4	28.3
August	27.1	26.3	28.3

^aAverage rainfall and air temperature based on weather information collected from 1981 to 2010 at the Alexandria International Airport approximately 56 km from research site.