Effect of Nitrogen Fertilization on the Growth and Seed Yield of Sesame (Sesamum indicum L.)

Table 1

Effects of soil type, annual rainfall, temperature, soil pH, and N rates on sesame productivity.

S. No.	Country	Soil type/texture	Annual rainfall (mm)	Average temperature (°C)	Soil pH	Altitude (m)	Environment/land suitability (1–4)	Fertilizer rate, N (kg/ha)	Country average yield (kg/ha) [10]	Yield (kg/ha)	Reported by
1	China		642	14.2 (8–27)		100	2	N123, P60	1555.7	762.5	Wei et al. [25]
2	India	Sandy loam	787–1172		8.1		1	N75, P–	419.8	706	Motaka et al. [27]
3	Sudan	Calcareous matrix	<200	29.8	Alkaline	380	3	N44, P44	245.9	919	El Mahdi [26]
		Sandy loam	650	25.7		900	1	N100		762	Bahar et al. [62]
4	Tanzania	Sandy clay	400–500	25.7	5.5–7	1140	1	N45, P20	1044.7	889.7	Sanga [62]
5	Ethiopia	Verisol/clay	400–620	27–37	8.4	600	3	N41, P46	792.7	675	Gebrelibanos [48]
		Sandy clay loam	150–340	23–35	8.3	300	2	N46, P46		1633.3	Mekonnen et al. [11]
6	Nigeria	Ultisol/sandy clay loam	1570	18–32	6.3	1000	1	N46, P–	1056.9	1333.3	Ogundare et al. [8]
		Loam	600–800	20–23		696	1	N75, P45		850	Shehu et al. [15]
		Sandy loam	600–800				1	N50, P–		888	Haruna [14]
7	Uganda	Sandy loam	1000	18–29	5.4	1128	1	P30, P25, K40	619	946	Anguria [63]
8	Bangladesh		Irrigated				4	N125, P150	915.7	1386	Sarkar et al. [47]
9	Egypt	Sandy loam	Irrigated				4		1406.3	1534	El-Sherif [28]
10	Iran	Clay loam	536.71		7.8	20	1	N150, P60	901	1199.62	Amin and Alireza [46]

Environment/land suitability: potential (1), suitable with some limitations (2), marginal (3), and irrigated (4).