DOES MOISTURE IN PODS INTERFERE WITH MECHANIZED HARVESTING OF PEANUTS?

Santos, Adão F. dos; Alcântara, Aline S.; Corrêa, Lígia N.; Queiroz, Renata F. de; Silva, Rouverson P. da

doi:10.1590/1809-4430-Eng.Agric.v41n1p98-106/2021

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Scientific Paper, Precision Agriculture • Eng. agríc. (Online) 41 (1) • Jan-Feb 2021 • https://doi.org/10.1590/1809-4430-Eng.Agric.v41n1p98-106/2021 copy

DOES MOISTURE IN PODS INTERFERE WITH MECHANIZED HARVESTING OF PEANUTS?

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Although peanut harvesting results in significant losses, it has rarely been investigated. Thus, this study aimed to analyze the interference of different pod moisture contents on peanut harvesting and their influence on the process quality based on losses and impurities. An experiment was performed in a peanut seed producing area, in Luzitânia, district of Jaboticabal - SP, using average moisture contents of 15% and 20% in the pods; 16 and 14 data points were collected for the 20% and 15% treatments, respectively. The experimental design used statistical process control (SPC) to analyze the collected variables. The results indicated higher losses in the platform than in the machine. In addition, the harvest quality was not affected by the pod moisture content. However, the correct adjustment of machines can restrict total losses to approximately 1% of the yield. Pods with moisture contents of 15% and 20% can be used for peanut harvesting. However, although a pod moisture content of 15% reduced the amount of mineral and vegetal impurities inside the bulk tank, the number of open pods increased, whereas a pod moisture content of 20% provided a greater number of whole pods.

KEYWORDS
Harvest losses; harvest impurities; peanut gathering; adjustment of machines

Variable	Variable characteristics
Whole pods (WP)	Fully developed pods that showed no sign of mechanical damage
Open pods (VA)	Pods that were open or split in half, or those with signs of apparent mechanical damage
Vegetal impurity (IV)	Dried twigs and/or leaves of the plant or weeds, gynophore, crop residues
Mineral impurity (IM)	Soil, stone, and other materials

20% water content of the pods
	kg ha⁻¹			(%)
	PMR	PPR	PTR	WP	VA	IM	IV
Max.	32.61	103.26	125.00	85.80	6.64	16.88	3.77
Min.	0.00	10.87	10.87	62.22	0.00	1.42	1.70
Average	0.00	43.48	54.95	73.82	3.09	10.76	2.92
σ	14.44	27.61	32.92	6.89	1.75	4.68	0.67
CV	123.95	59.26	56.53	9.45	47.89	48.2	23.30
AD	<0.005^N N Normal distribution,	0.58^A A Non-normal distribution (p > 0.05).	0.73^A A Non-normal distribution (p > 0.05).	0.60^A A Non-normal distribution (p > 0.05).	0.15^N N Normal distribution,	0.44^N N Normal distribution,	0.46^N N Normal distribution,
15% water content of the pods
Max.	43.48	92.39	97.83	76.83	6.29	20.67	5.45
Min.	0.00	0.00	0.00	66.92	0.00	1.09	2.03
Average	0.00	40.76	57.93	71.72	3.60	10.11	2.99
σ	13.68	26.02	28.57	3.47	1.78	5.14	0.99
CV	143.81	56.75	51.60	4.83	53.83	48.58	30.51
AD	<0.005^N N Normal distribution,	0.40^N N Normal distribution,	0.16^N N Normal distribution,	0.34^N N Normal distribution,	0.69^A A Non-normal distribution (p > 0.05).	0.92^A A Non-normal distribution (p > 0.05).	0.31^N N Normal distribution,

Associação Brasileira de Engenharia Agrícola SBEA - Associação Brasileira de Engenharia Agrícola, Departamento de Engenharia e Ciências Exatas FCAV/UNESP, Prof. Paulo Donato Castellane, km 5, 14884.900 | Jaboticabal - SP, Tel./Fax: +55 16 3209 7619 - Jaboticabal - SP - Brazil
E-mail: revistasbea@sbea.org.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] *Corresponding author. Department of Agriculture, Lavras Federal University (UFLA)/ Lavras - MG, Brazil. E-mail: adao.felipe@ufla.br