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

Table 6

Nitrogen uptake of rice as affected by N fertilizer and legume residue.

N (g m^−2)		Nitrogen uptake (g m^−2)
		Rice after bush bean		Rice after long bean		Rice after mung bean
2010	2011	2010	2011	2010	2011	2010	2011
0	0	9.4^d	8.5^c	9.3^c	8.5^c	9.1^c	8.4^c
4	0	10.4^c	9.5^b	10.4^b	9.5^b	10.2^b	9.4^b
8	0	11.0^b	10.7^a	11.5^a	10.3^a	11.4^a	10.7^a
12	0	11.6^a	10.9^a	11.6^a	10.8^a	11.5^a	10.8^a
N (g m^−2)		Nitrogen uptake (g m^−2)
		Rice after winged bean		Rice after corn		Rice after fallow
2010	2011	2010	2011	2010	2011	2010	2011
0	0	12.1^b	11.3^b	7.1^d	6.8^d	7.5^c	7.1^d
4	0	13.4^a	12.5^a	7.6^c	7.2^c	8.5^b	7.9^c
8	0	13.7^a	12.8^a	8.4^b	7.7^b	9.5^a	8.4^b
12	0	13.9^a	12.9^a	8.9^a	8.3^a	9.7^a	8.7^a

Means followed by the same letters are not significantly different for each treatment mean (𝑃<0.05).