Tropical Legume Crop Rotation and Nitrogen Fertilizer Effects on Agronomic and Nitrogen Efficiency of Rice

Table 2

Nitrogen uptake of bush bean, long bean, mung bean, winged bean, and corn as affected by nitrogen fertilizer.

Nitrogen		Nitrogen uptake (g m^−2)
(g/m^2)		Bush bean		Long bean		Mung bean		Winged bean		Corn*
2010	2011	2010	2011	2010	2011	2010	2011	2010	2011	2010	2011
0 0*	0	5.0^c	4.7^c	4.7^d	4.6^c	4.6^c	4.5^d	6.2^b	5.6^b	3.6^d	3.4^d
2 4*	0	5.3^b	5.1^b	5.0^c	4.8^c	5.0^b	4.8^c	6.5^ab	6.3^a	4.3^c	4.0^c
4 8*	0	5.7^a	5.3^b	5.4^b	5.1^b	5.2^b	5.1^b	6.7^a	6.6^a	4.8^b	4.5^b
6 12*	0	5.9^a	5.6^a	5.7^a	5.4^a	5.5^a	5.3^a	6.8^a	6.9^a	5.3^a	4.9^a

Means followed by the same letters are not significantly different for each treatment mean (𝑃<0.05).
∗Denotes N fertilizer rate for corn in 2010.