How to maintain balanced nutrition throughout the soybean cycle

In addition to nourishing plants to maximize their productive potential, Tractus Kit Evolution is an excellent tool for weed management, with high synergism with glyphosate and positive effects on soybean yield components.

The Tractus Kit Evolution increases grain mass, the number of pods per plant and soybean productivity, in addition to contributing to integrated weed management. The supply of the micronutrient boron, in a balanced way, during the soybean cultivation cycle is essential to obtain high productivity. Boron is necessary for shoot and root growth, synthesis and transport of carbohydrates, pollen grain production and viability, grain filling, in addition to contributing to the integrity of cell membranes and walls. However, its content in Brazilian soils is low and the conventional sources used, even in high doses, have low agronomic effectiveness and many losses of the nutrient in the system. In other words, the boron applied in pre-planting desiccation will not be available during the plant's highest demand period, which is during flowering. In this context, Spraytec developed the Tractus Kit Evolution, a technological package that combines balanced nutrition with two high-quality sources of boron, essential amino acids and a premium adjuvant.

In terms of application technology, Tractus Kit Evolution improves the quality of the mixture and spraying during integrated weed management. Tractus Kit Evolution is highly compatible with pesticides, and has no saline effect, preventing corrosion and wear of equipment, in addition to leaving no residue in the tank, and thus increasing effectiveness in weed management. In the plant, Tractus Kit Evolution assists in plant development processes throughout the cycle, promoting greater initial start-up and establishment of the crop in the field. During the reproductive stages, it reduces flower abortion, allows greater production and viability of the pollen grain, in addition to increasing grain filling, the number of pods and the productivity of the area. Tractus Kit Evolution is a cutting-edge product that meets the needs of the field, as it goes beyond simple plant nutrition. Therefore, the use of the product is an effective and safe tool, which can integrate nutritional management strategies, with positive impacts on application technology, resulting in increased productivity.

Goal

To evaluate the agronomic efficiency of the Tractus Kit Evolution technological package, used in pre-sowing desiccation of soybean crops.

Material and methods

The experiment was conducted on the São José farm, located in the municipality of Maringá, Paraná, during the 2019/20 agricultural year. The soybean cultivar used was NA 5909 RG. The treatments applied during desiccation were (L or kg p.c./ha): Glyphosate Standard (2,0), Glyphosate Standard + Tractus Kit Evolution (2,0 + 1,0), Glyphosate Standard + Boric Acid (2,0 + 3,0 .2,0) and Standard Glyphosate + Sodium Octaborate (2,5 + 0,2). Tractus Kit comes with a premium multifunctional adjuvant (14L/ha), favoring the quality of the application. The experimental design was randomized blocks, using four treatments and four replications. Weed control at seven, 21 and 0,05 DAA (days after application) and the components of grain mass yield, number of pods and productivity after harvest were evaluated. The variables were subjected to analysis of variance and the Tukey test (p < XNUMX), using the Sisvar statistical analysis system.

Results

According to Figure 1, 21 days after application, the Tractus Kit Evolution treatment associated with glyphosate obtained the best control of weeds (88,3%), in relation to boric acid (78,2%), and octaborate. sodium (72,4%) and glyphosate alone (72,1%). As shown in Figure 2, the Tractus Kit Evolution treatment associated with glyphosate increased grain mass, the number of pods per plant and soybean productivity, in relation to boric acid, sodium octaborate and glyphosate alone. The productivity per hectare for glyphosate alone was 63,2 bags, glyphosate with sodium octaborate 64,1 bags, glyphosate with boric acid 65,4 and glyphosate with Tractus Kit Evolution 69,9 bags. In relation to glyphosate alone, the average increase per hectare in the productivity of Tractus Kit Evolution was 6,7 bags, with boric acid of 2,2 bags and with sodium octaborate of 0,9 bags.

Conclusion

Tractus Kit Evolution, in addition to nourishing plants to maximize their productive potential, is an excellent tool for managing weeds with high synergism with glyphosate and positive effects on soybean yield components, standing out from conventional treatments, boric acid and sodium octaborate. The use of cultivars with high genetic potential associated with sustainable development requires innovative and disruptive products such as the Tractus Kit Evolution.

Julio R. Fagliari, Research Department Agrolatina Group