Net Assimilation Rate and Agronomic Efficiency of Nitrogen in Tartago (Ricinus communis L.) (Euphorbiaceae) in Dry Climate

Table 1

Multiple comparison test in Tartago (Ricinus communis L.) for five variables in response to the application of eight levels of nitrogen in Teotitlán de Flores Magón, Oaxaca, Mexico, in 2018.

Treatment, kg (N) ha^−1	B	AY	NF	HI	AEN
	g plant^−1				kg kg(N) plant^−1
0	310.11 c^¶	57.12 b^¶	6.33 b^¶	0.18 a^¶	0.02 c^¶
20	312.82 c	60.55 b	8.44 b	0.19 a	0.17 b
40	389.22 b	73.12 a	9.00 b	0.18 a	0.18 b
60	410.50 a	78.75 a	12.89 a	0.19 a	0.22 a
80	421.60 a	80.27 a	13.44 a	0.19 a	0.25 a
100	432.80 a	81.33 a	14.74 a	0.18 a	0.26 a
120	450.80 a	71.00 a	14.99 a	0.16 a	0.22 a
140	440.50 a	71.33 a	16.00 a	0.16 a	0.20 b
SDH	40.90	13.50	4.50	0.02 ns	0.04
CV%	22.12	19.33	25.25	6.23	15.89

B, biomass; AY, agronomic yield; NF, number of fruits; HI, harvest index; AEN, agronomic efficiency of nitrogen; SDH, significant difference honest; CV; coefficient of variation; n.s., not significant. ^¶Values within columns with the same alphabets are statistically the same according to Tukey at . and indicate significance at 0.01 and not significant, respectively.