Estratégias de manejo da adubação na produção de batata ‘Agata’

Soratto, Rogério P; Yagi, Renato; Job, André Luiz G; Fernandes, Adalton M

doi:10.1590/s0102-0536-20210407

Rogério P Soratto

Universidade Estadual Paulista(UNESP-FCA), Botucatu-SP, Brasil; rogerio.soratto@unesp.br; andreljob@hotmail.com

https://orcid.org/0000-0003-4662-126X

Renato Yagi

Instituto de Desenvolvimento Rural do Paraná- IAPAR-EMATER (IDR-Paraná), Ponta Grossa-PR, Brasil; ryagi@idr.pr.gov.br

https://orcid.org/0000-0002-1111-0040

André Luiz G Job

Universidade Estadual Paulista(UNESP-FCA), Botucatu-SP, Brasil; rogerio.soratto@unesp.br; andreljob@hotmail.com

McCain Brasil, Araxá-MG, Brasil

https://orcid.org/0000-0001-8334-2038

Adalton M Fernandes

Universidade Estadual Paulista(UNESP-CERAT), Botucatu-SP, Brasil; adalton.fernandes@unesp.br

https://orcid.org/0000-0002-6745-0175

Figuras (2)
Tabelas (4)

Thumbnail

Figure 1
Leaf phosphorus concentracion of potato cultivar Agata as affected by fertilization management in two site-years. ^*Description of fertilization managements is shown in . Different lowercase letters indicate a significant difference among fertilization managements in the same site-year, whereas different uppercase letters indicate a significant difference among site-year in the same fertilization management, at p≤0.05 according to LSD test. Botucatu, UNESP, 2013-2014.

Thumbnail

Figure 2
Yield of tubers >4.5 cm (A) and proportion of tuber yield >4.5 cm (B) of potato cultivar Agata as affected by fertilization management in two site-years. ^*Description of fertilization treatments is shown in . Different lowercase letters indicate a significant difference among fertilization managements in the same site-year, whereas different uppercase letters indicate a significant difference among site-year in the same fertilization management, at p≤0.05 according to LSD test. Botucatu, UNESP, 2013-2014.

Thumbnail

Table 1
Description and nutrient amounts in the fertilization treatments. Botucatu, UNESP, 2013-2014.

Thumbnail

Table 2
Leaf concentrations of macronutrients (N, P, K, Ca, Mg, and S) of potato cultivar Agata as affected by fertilization management (FM) in two site-years (SY) and analyses of variance. Botucatu, UNESP, 2013-2014.

Thumbnail

Table 3
Number of tubers per plant, tuber mean weight, tuber yield [total and special (>4.5cm)], proportion of tuber yield >4.5 cm, and percentage of dry matter (DM) in the tubers of potato cultivar Agata as affected by fertilization management (FM) in two site-years (SY) and analyses of variance. Botucatu, UNESP, 2013-2014.

Thumbnail

Table 4
Fertilizer rate, information on the fertilizer application capacity and operation, and estimated operational yield of fertilizer application at potato planting according to fertilization management. Botucatu, UNESP, 2013-2014.

Treatment	Application time⁽¹⁾	Sources	Rate (kg ha^-1)
Treatment	Application time⁽¹⁾	Sources	Sources	N	P₂O₅	K₂O	Ca	S
T1	Planting	4-30-10, 8.3% Ca, 4% S	1700	68	510	170	141	68
	Hilling	KCl	150	0	0	90	0	0
	Hilling	Urea	100	45	0	0	0	0
			Total	112	510	260	141	68
T2	Planting	MAP (07-40-00, 5.5% Ca, 3% S)	1275	89	510	0	70	38
	Post-planting	KCl	430	0	0	258	0	0
	Post-planting	Phosphogypsum	200	0	0	0	40	30
	Hilling	Urea	100	45	0	0	0	0
			Total	134	510	258	110	68
T3	Planting	MAP (07-40-00, 5.5% Ca, 3% S)	1275	89	510	0	70	38
	Post-planting	KCl	280	0	0	168	0	0
	Post-planting	Phosphogypsum	200	0	0	0	40	30
	Hilling	KCl	150	0	0	90	0	0
	Hilling	Urea	100	45	0	0	0	0
			Total	134	510	258	110	68
T4	Planting	MAP (07-40-00, 5.5% Ca, 3% S)	638	45	255	0	35	19
	Post-planting	KCl	430	0	0	258	0	0
	Post-planting	Phosphogypsum	333	0	0	0	67	50
	Hilling	Ureia	100	45	0	0	0	0
			Total	90	255	258	102	68
T5	Planting	MAP (07-40-00, 5.5% Ca, 3% S)	638	45	255	0	35	19
	Post-planting	KCl	280	0	0	168	0	0
	Post-planting	Phosphogypsum	333	0	0	0	67	50
	Hilling	KCl	150	0	0	90	0	0
	Hilling	Ureia	100	45	0	0	0	0
			Total	90	255	258	102	68

Fertilization management (FM¹)	Leaf concentration (g kg^-1)
Fertilization management (FM¹)	N	P	K	Ca	Mg	S
T1	49.9	4.2	42.0	10.1ab	3.6	2.7
T2	50.1	4.7	37.9	9.3b	3.2	2.9
T3	50.3	4.3	38.3	10.1ab	3.7	2.8
T4	49.5	3.4	38.7	11.3a	3.8	2.8
T5	46.4	3.3	44.3	11.4a	4.0	2.7
Site-year (SY)
BC-2013	47.7	3.7	43.7	10.5	3.4b	2.8
Itaí-2014	50.8	4.2	36.8	10.4	3.9a	2.7
Source of variation	ANOVA (P>F)
FM	0.428	0.317	0.697	0.046	0.093	0.340
SY	0.074	0.283	0.101	0.696	0.021	0.101
FM × SY	0.706	<0.001	0.133	0.743	0.579	0.806
CV(%)	10.1	7.2	17.6	13.2	13.0	11.9

Fertilization management (FM¹)	Tuber number per plant (no. plant^-1)	Tuber mean weight (g)	Tuber yield (t ha^-1)		Proportion of tuber yield >4.5 cm (%)	Tuber DM (%)
Fertilization management (FM¹)	Tuber number per plant (no. plant^-1)	Tuber mean weight (g)	Total	>4.5cm	Proportion of tuber yield >4.5 cm (%)	Tuber DM (%)
T1	12.4	79.4	40.8	28.8	69.7	14.1
T2	12.0	81.3	40.3	30.1	74.5	14.9
T3	12.1	76.8	38.8	29.2	75.2	15.0
T4	11.9	76.7	37.8	28.1	73.7	14.4
T5	12.5	76.8	39.2	29.6	76.0	14.6
Site-year (SY)
BC-2013	9.8b	79.0	32.2b	23.5b	73.2	14.9
Itaí-2014	14.5a	77.3	46.6a	34.7a	74.4	14.8
Source of variation	ANOVA (P>F)
FM	0.522	0.445	0.523	0.947	0.698	0.202
SY	<0.001	0.385	<0.001	0.003	0.702	0.752
FM × SY	0.821	0.802	0.310	0.057	0.010	0.534
CV(%)	9.6	10.4	7.8	10.8	5.9	6.6

Information	Treatments grouped by planting fertilization
Information	T1⁽¹⁾	T2 and T3	T4 and T5
Fertilizer rate (kg ha^-1)	1700	1275	638
Fertilizer applicator capacity (kg)	2000	2000	2000
Working speed of fertilizer applicator (km h^-1)	10	10	10
Area fertilized with each fertilizer refilling (ha)	1.18	1.57	3.13
Fertilizer refilling time (min)	5.8	5.8	5.8
Fertilizer refilling time per working hour (min)	15.7	11.8	5.9
Area fertilized per working hour (ha)	2.36	2.57	2.88
Relative operational yield (%)	100	109	122

[TFN1] ⁽¹⁾ Planting, planting furrow; Post-planting, broadcasted after planting; Hilling, sidedressed immediately before hilling.

Brasil

Brasil

Estratégias de manejo da adubação na produção de batata ‘Agata’

RESUMO