ECR Soja results are released by Farsul and Fundação Pró-Sementes

The Farsul System and the Pró-Sementes Foundation released the results of the Network Cultivar Trial (ECR) of the 2022/23 soybean harvest in Rio Grande do Sul. The Soja ECR is a survey on the cultivation of the grain in the state. It serves as a tool to assist decision-making.

The current study was carried out in three producing microregions, which are divided into 11 municipalities. Harvests from two different sowing seasons in the cities of Bagé, Cacequi, Cachoeira do Sul, Júlio de Castilhos, Lagoa Vermelha, Passo Fundo, Pelotas, Santo Augusto, São Gabriel, São Luiz Gonzaga and Vacaria were analyzed.

Forty cultivars were analyzed in the period, defined through the largest representation of hectares approved for seed production, according to the Agricultural Zoning of the Ministry of Agriculture (Mapa). The cultivars were separated into two groups. The first with GM 5.0 to 6.1 (31 cultivars); the second with GM 6.1 to 6.5 (nine cultivars). The technologies used were Ipro, IX2, E and RR. The range of regional productivity in the study varied from 17 sc/ha, in Cachoeira do Sul, to 77 sc/ha, in Vacaria. The maximum productivity achieved was in Vacaria: 108 sc/ha.

The two tests conducted in Bagé, as well as the tests conducted in the Pelotas and Cachoeira do Sul floodplains, were lost due to the effects of drought. The research and development manager at Fundação Pró-Sementes, Kassiana Kehl, pointed out that "the weather conditions were very difficult, we had a very severe drought. This harvest saw an inversion in the productivity of areas in the state. Last year the highlight was the productivity in the southern half, this year the situation has become better for the northern region."

Kehl used samples from Cachoeira do Sul to exemplify the drought situation in the state, "the water demand of soybeans, from planting to harvest, varies between 450mm and 800mm. In Cachoeira do Sul, for example, the total rainfall did not reach not even the minimum necessary. It's a very critical situation."

Gedeão Pereira, president of Sistema Farsul, also highlighted the period of drought that Rio Grande do Sul is going through. "In the last two summer harvests, our sector was strongly impacted by the drought, shortly after having reached the position of second largest producer of soy."

Results in microregion 101

In microregion 101, the cultivar with the highest productivity was BS2606 Ipro, in Cacequi, with 76 sc/ha, in the early cycle of the 1st sowing season. In Cachoeira do Sul, DM 56I59RSF Ipro stood out, with 27 sc/ha. And, in São Gabriel, DM 56I59RSF Ipro, with 42 sc/ha. In the early cycle of the 2nd sowing, Cachoeira do Sul stood out with C2530 RR, with 28 sc/ha.

In the medium/late cycle of the 1st season, BMX Garra Ipro stood out, in Cachoeira do Sul, with 35 sc/ha. In São Gabriel, DM 64I63 Ipro produced 39 sc/ha. In the 2nd planting season of the medium/late cycle, DM 64I63 Ipro yielded 34 sc/ha in Cachoeira do Sul.

Results in microregion 102

The highlight of microregion 102 was in Passo Fundo, where BMX Lótus Ipro yielded 85 sc/ha during the early cycle of the 2nd season. In the same period, in Júlio de Castilhos, BS2606 Ipro produced 60 sc/ha. In São Luiz Gonzaga, M 5947 Ipro with 45 sc/ha; and, in Santo Augusto, the BMX Lance Ipro cultivar, with 57 sc/ha.

In the 1st season of the early cycle, BMX Lótus Ipro yielded 81 sc/ha in Passo Fundo; BS2606 Ipro, 53 sc/ha in Júlio de Castilhos; the NEO 580 Ipro with 35 sc/ha in São Luiz Gonzaga; and BMX Launch Ipro with 62 sc/ha in Santo Augusto.

The results of the medium/late cycle of the 1st season were the BMX Nexus i2X in Passo Fundo, with 83 sc/ha; DM 64I63 Ipro with 60 sc/ha in Júlio de Castilhos and 52 sc/ha in Santo Augusto; and M 6110 i2X with 36 sc/ha in São Luiz Gonzaga.

In the 2nd season of the medium/late cycle, BMX Garra Ipro stood out with 83 sc/ha in Passo Fundo and 71 sc/ha in Júlio de Castilhos. DM 64I63 Ipro showed results of 44 sc/ha in São Luiz Gonzaga and 52 sc/ha in Santo Augusto.

Results in microregion 103

The highlight was in Vacaria, where BMX Zeus Ipro produced 108 sc/ha in the early cycle. In Lagoa Vermelha, the cultivar yielded 73 sc/ha. In the medium/late cycle, BMX Compacta Ipro had a yield of 73 sc/ha in Vacaria. In Lagoa Vermelha, BMX Fibra Ipro yielded 74 sc/ha.