Avaliação da eficiência da adubação nas culturas da soja e milho

Abstract

Brazylijski Cerrado, z ponad 200 milionami hektarów i ogromną rolą w produkcji rolnej, jest drugim co do wielkości biosem brazylijskim, ze znaczną różnorodnością biologiczną, którą można wykorzystać do produkcji żywności, pasz, włókien i paliwa, a także drewna , rośliny lecznicze i ozdobne. Soil is much more than that 0 to 20 cm layer, often used for fertility analysis. Considering all these attributes that are directly related to the development of crops, the work had as an emphasis the proposal to evaluate the efficiency of the fertilization carried out in soybean and corn crops. The study was conducted at the Montes das Oliveiras farm, in the municipality of Caiapônia - GO, near the geographical coordinates 16 ° 57 '31.9' S and 51 ° 47 '24.6' 'O, 692 m altitude. The monitoring and analysis of the project were in the 2017/18 harvest, starting in October 2017. Within the property were selected 11 areas or glebas to make the follow-ups of the development of soybean and maize crops. The areas were mapped according to the topography. Fertilization rates were: 200 kg / ha of MAP, with 10% of N; 150 kg / ha KCL. For maize crop fertilization were: 120 kg / ha of MAP with 36 kg of N and coverage with 250 kg / ha of the formulation 30-00-20 in two applications. Taking into account soil, leaf and grain analysis data, it was concluded that nitrogen fertilization is not at levels adequate for maize and indicative of the need to improve soybean inoculation; Perform soil correction and increase phosphorus fertilization; Make fertilization with nickel, cobalt and molybdenum in the treatment of seeds, and Boron and zinc via soil; Reduce fertilization with potassium, because soil contents are high.