Abstract
Among the nutrients, nitrogen (N) is the element required in greater quantity by the bean plant. Depending on the cultivar, it has greater or lesser N-fixing capacity. The aim of this work was to evaluate the performance of two common bean cultivars under nitrogen topdressing in corn succession, on yield components and yield. The experiment was carried out in randomized blocks in a 2x5 factorial scheme, the first factor being the common bean cultivars (IPR Campos Gerais and BRS Estilo) and the second factor the nitrogen rates (0, 30, 60, 90 and 120 kg ha- 1), with four repetitions. At harvest, plants were collected in one meter, in the useful area of each subplot to determine: number of plants per meter; number of pods/plant; number of grains/plant; number of grains/pods; mass of a thousand grains and productivity. The cultivars differed regarding the number of pods per plant, grains per plant and yield, but they were equivalent for the number of plants per meter, grains per pod and mass of a thousand grains. Comparing the production component number of pods per plant and grain yield, it is concluded that the cultivar that produced the highest number of pods per plant and showed the highest yield was BRS Estilo. There were differences between the treatments for the two cultivars, only in the yield obtained. The highest yield averages were obtained in treatments with doses above 60 kg ha-1 of N.
Highlights
In Brazil, the social and economic importance of the bean crop (Phaseolus vulgaris L.) is evidenced by representing a protein source in the population's diet and by the contingent of small producers involved in its production, there has been an increase in recent years. interest of producers from other classes of agribusiness, adopting advanced techniques, including irrigation and mechanized harvesting (Viçosi & Pelá, 2020)
There was no difference for the application of different doses of nitrogen (N) fertilizer in the cultivars IPR Campos Gerais and BRS Estilo for the component of yield plants per meter (Table 1)
There was no difference in the application of different doses of nitrogen fertilizer in the cultivars IPR Campos Gerais and BRS Estilo for the yield components: plants per meter, grains per pod and mass of a thousand grains
Summary
In Brazil, the social and economic importance of the bean crop (Phaseolus vulgaris L.) is evidenced by representing a protein source in the population's diet and by the contingent of small producers involved in its production, there has been an increase in recent years. interest of producers from other classes of agribusiness, adopting advanced techniques, including irrigation and mechanized harvesting (Viçosi & Pelá, 2020).The world production per year is around 12 million tons, supplying the basic food of about 400 million people (CIAT, 2019). In Brazil, the social and economic importance of the bean crop (Phaseolus vulgaris L.) is evidenced by representing a protein source in the population's diet and by the contingent of small producers involved in its production, there has been an increase in recent years. Among the main factors limiting crop productivity in the country, those related to the low technical level employed by producers and the cultivation of beans in low fertility soils, especially poor in N, a very important nutrient for plants, stand out. The main sources of N for the crop are the soil, through the decomposition of organic matter, the application of nitrogen fertilizers and the biological fixation of atmospheric N2, through the association of common bean with bacteria of the rhizobia group (Stocco et al, 2008). It has greater or lesser capacity to fix atmospheric nitrogen by the action of N2 fixing bacteria, present in nodules formed in the root system (Bordin et al, 2003)
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call