Deficiencies of nitrogen, calcium, and micronutrients are the most limiting factors for growth and yield of smell pepper plants

Magalhães, Deila da Silva; Viegas, Ismael de Jesus Matos; Barata, Henrique da Silva; Costa, Milton Garcia; Silva, Bianca Cavalcante da; Mera, Willian Yuki Watanabe de Lima

doi:10.1590/0034-737X202370030013

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Soil and plant nutrition • Rev. Ceres 70 (3) • May-Jun 2023 • https://doi.org/10.1590/0034-737X202370030013 copy

Deficiencies of nitrogen, calcium, and micronutrients are the most limiting factors for growth and yield of smell pepper plants¹ 1 This work is part of the scientific initiation project (Pibic-CNPq) of the first author.

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ABSTRACT

Cultivation and commercialization of Capsicum pepper have great importance in Brazil. This work assessed the influence of omission of macro and micronutrients on the growth and mineral nutrition of sweet pepper plants (Capsicum chinense Jacquin). The research was carried out in a greenhouse with washed sand as substrate. The experimental design was completely randomized with five replications and eight treatments: complete (control), omission of N, P, K, Ca, Mg, S, and micronutrients (B, Cu, Fe, Mn and Zn). The plants were submitted to the treatments when they reached an average height of 20 cm and the nutrient solution was supplied by percolation in plastic pots and renewed every 15 days. Nutrients omission affected negatively plant growth as a whole. The omission of N, Ca, and micronutrients greatly reduced sweet pepper yield. The C. chinense plants presented the sequence by dry matter production of shoots and roots in descending order: COMP > OP > OS > OK > Omg > ON > Oca > OMicro.

Keywords
Capsicum chinense Jacquin; omission of nutrients; nutrient export

Treatment	PH	SD	NL	Fruits	RPH	RSD	RNF	RF	SDM	RDM	TDM
Treatment	cm	mm	NL	Fruits	--------- % -------			----------- g -----------
C	51.4a	11.32a	120.4a	23.4a	100.0	100.0	100.0	100.0	15.89a	12.15a	28.04a
NO	43.6b	7.38cd	64.6c	8.2e	84.8	65.2	53.7	35.0	9.66e	5.75de	15.41e
PO	52.2a	7.40cd	69.2c	10.0de	101.5	65.4	57.5	42.7	14.45b	8.44b	22.89b
KO	51.6a	7.33cd	85.0b	14.4bc	100.3	64.8	70.6	61.5	11.58cd	6.85cd	18.43d
MgO	45.2b	7.32cg	84.4b	15.8bc	87.9	64.7	70.1	67.5	7.55f	5.82de	13.37f
CaO	43.6b	7.94bc	76.6bc	9.2de	84.8	70.1	63.6	39.3	10.46de	5.77de	16.23e
SO	53.0a	8.47b	109.0a	16.4b	103.1	74.8	90.5	70.1	12.83c	7.79bc	20.63c
MicO	45.4b	6.91d	77.0bc	12.4cd	88.3	61.0	64.0	53.0	6.98f	5.03e	12.01f
CV (%)	5.77	6.65	8.15	13.17	-	-	-	-	6.11	7.98	5.19
SDM	5.43	1.03	13.59	3.51	-	-	-	-	14.004	11.768	19.560

Treatments		Deficiency (g kg^-1)	Sufficiency (g kg^-1)	Exportation (g fruit^-1)	Mean	kg t^-1
N		21.4	22.2	0.043	7.12	6.039
P		3.9	4.5	0.008	8.11	0.986
K		2.5	28.0	0.049	9.34	5.246
Ca		1.2	1.1	0.002	6.36	0.314
Mg		2.8	2.9	0.005	7.14	0.700
S		4.0	4.5	0.008	11.3	0.708
Micronutrients		mg kg^-1	mg kg^-1	mg fruit^-1	Mean	g t^-1
B		17.8	22.8	0.044	10.03	4.387
Cu		2.5	3.5	0.004	10.03	0.399
Fe		60.0	75.0	0.147	10.03	14.656
Mn		5.0	15.0	0.009	10.03	0.897
Zn		23.5	26.5	0.052	10.03	5.184
Export	N	P₂O₅	K₂O	Ca	Mg	S
Macro (kg/t /fresh fruits)	6	2.1	6.3	0.3	0.7	0.7
Efficiency (%)	60	30	70	60	50	40
ECE (kg/t/fresh fruits)	10	7	9	0.5	1.4	1.4

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E-mail: ceres@ufv.br

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[1] *Corresponding author: miltongarciacosta.2010@gmail.com

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Deficiencies of nitrogen, calcium, and micronutrients are the most limiting factors for growth and yield of smell pepper plants1 1 This work is part of the scientific initiation project (Pibic-CNPq) of the first author.

ABSTRACT

Deficiencies of nitrogen, calcium, and micronutrients are the most limiting factors for growth and yield of smell pepper plants¹ 1 This work is part of the scientific initiation project (Pibic-CNPq) of the first author.