Effect of Irrigation to Winter Wheat on the Radiation Use Efficiency and Yield of Summer Maize in a Double Cropping System

Table 1

Soil moisture accumulation in 0–1.2 m soil profiles before summer maize sowing (mm).

Treatments	2002	2003	2005	Mean
T0	221.4^c	194.0^d	247.2^d	220.9^d
T1	231.9^c	217.3^c	266.7^c	238.6^c
T2	263.7^b	225.2^b	315.4^b	268.1^b
T3	296.8^a	255.4^a	349.3^a	300.5^a

Means in each column with in each year followed by the same letter are not significantly different at 𝑃<0.05 based on LSD test.