Effects of Organic and Inorganic Fertilizers on Growth and Nutrient Uptake by Young Cacao (Theobroma cacao L.)

Table 7

Leaf macronutrient contents of cacao plants in April 2017 and January 2019.

Nutrient (%)	Date	Treatments						SED	Normal concentrations
		T1	T2	T3	T4	T5	T6		Murray (1967)	Fahmy (1977)
N	I	1.25	1.27	1.23	1.24	1.22	1.25	0.03	> 2	2.3–3.0
	II	1.47	1.88	2.53	2.57	2.39	2.46	0.34
P	I	0.27	0.28	0.43	0.39	0.34	0.40	0.01	> 0.20	0.16–0.30
	II	0.24	0.29	0.37	0.38	0.30	0.32	0.07
K	I	0.86	0.76	0.82	0.84	0.82	0.80	0.02	> 2	1.6–2.6
	II	0.70	0.52	0.77	0.83	0.53	0.58	0.12
Mg	I	0.51	0.48	0.55	0.54	0.42	0.52	0.02	> 0.45	0.4–1.0
	II	0.49	0.36	0.54	0.62	0.44	0.47	0.05
Ca	I	0.88	0.88	0.76	0.96	0.76	0.66	0.02	> 0.4	0.8–2.6
	II	0.88	0.72	1.30	1.31	1.19	1.21	0.24

I = April 2017 sampling. II = January 2019 sampling. SED = standard errors of differences in means.