Open AccessComponentes de rendimento de soja irrigada por aspersão em Cachoeira do Sul no ano agrícola de 2018/19
Author(s) -
Irajá Jantasch de Souza,
Zanandra Boff de Oliveira,
Clarissa Moraes da Silva,
Heloísa de Gois,
Larrissa Ribeiro Rodrigues,
Tiago Tondolo Link,
Leonardo Baldissera Malffini
Publication year - 2020
Publication title -
ciência e natura
Language(s) - English
Resource type - Journals
eISSN - 2179-460X
pISSN - 0100-8307
DOI - 10.5902/2179460x40658
Subject(s) - cultivar , irrigation , grain yield , agronomy , mathematics , yield (engineering) , horticulture , crop , biology , physics , thermodynamics
The objective of this work was to evaluate the development, yield components and grain yield of different soybean cultivars with and without supplemental irrigation, in the 2018/19 crop, in coxilha soil in Cachoeira do Sul - RS. The experiment was conducted at the UERGS Agronomic Experimental Station. The experimental design was in bands in factorial scheme (3x2), with four replications. The treatments consisted of: factor “A” three soybean cultivars: Nidera 6909 IPRO (NS 6909), Nidera 5909 RG (NA 5909) and Nidera 4823 RR (NS 4823); fFactor “B” two water regimes: irrigated and non-irrigated. Regular rainfall distributions were observed throughout the soybean cycle and volumes totaled 655 mm higher than the cumulative ETc of 413.19 mm. Supplementary irrigation of 134.5 mm was required, which promoted an increase of 18% in IAF, 5.2% in PMG and 7.5% in grain yield, which was 4492.6 kg ha-1 for the water regime. 4158.2 kg ha-1 for the non-irrigated water regime. The cultivars NA 5909 and NS 4823 presented average grain yields of 4659.05 kg ha-1 and the cultivar NS 6909 of 3658.2 kg ha-1