Nutrient Budget and Economic Assessment of Blended Fertilizer Use in Kenya Tea Industry

Table 2

Apparent nutrient budget of Blend B (NPKS 23 : 5 : 5 : 4 + 10Ca + 3Mg + trace elements) in Timbilil and Kagochi.

Site	NPK input as fertilizer (kg·ha^−1)			Yield (kg·MT·ha^−1·yr^−1)	Mean NPK content in 2L + B (%)			Gross NPK removed through harvest (kg·ha^−1)			Nutrient budget (input as fertilizer and output as harvest) (kg·ha^−1)
	N	P2O5	K2O		N	P	K	N	P2O5	K2O	N	P2O5	K2O
Timbilil	0	0	0	2140	4.67	0.466	2.15	100	23	55	−100	−23	−55
	75	15	15	2336	4.84	0.478	2.29	113	25	64	−38	−9	−48
	150	30	30	2816	4.97	0.48	2.31	140	32	78	10	1	−45
	225	45	45	2854	4.86	0.509	2.41	139	34	83	86	15	−34
Kagochi	0	0	0	1420	4.53	0.497	2.32	66	16	40	−66	−16	−40
	75	15	15	1870	4.44	0.482	2.36	91	21	53	−16	−5	−37
	150	30	30	1859	4.54	0.454	2.26	92	18	51	58	15	−18
	225	45	45	1742	4.61	0.457	2.27	85	18	48	140	31	1

“−” denotes a negative value.