Abstract
The present study aimed to evaluate the influence of fertilization formulated at planting and doses of nitrogen in topdressing on the yield components of second-crop corn. The experiment was conducted between March and June 2018 on the farm of the State University of Goiás, University Unit of Ipameri-GO. The randomized block design, arranged in a 3 x 5 factorial scheme with four replications, was used. Three fertilizer formulations at planting (06-22-12; 08-20-15 and 06-22-12 + 2% organic carbon) and five doses of N (0, 50, 100, 150 and 200 kg ha-1) in topdressing were evaluated. Leaf nitrogen content, fresh and dry mass of leaves, plant height, stem diameter, first ear insertion height, length and diameter of ears, 1000-grain weight, the mass of plants per hectare, extraction of nitrogen, and grain yield were assessed. Given the results, NPK formulated fertilizers can be used indifferently to grow second-crop corn. Nitrogen doses in topdressing have satisfactory results up to the estimated rate of 135 kg ha-1 for the cultivation of second-crop corn.
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Claims 2
Claim · model-written summary
NPK formulations at planting performed equivalently for growing second-crop corn.
- Taxon
- second-crop corne0
- Treatment
- NPK formulated fertilizerse0
- Outcome
- grow second-crop corne0
- Direction
- indifferentlye0
Not reportedComparator
Verbatim
t0“SECOND-CROP CORN”
e0“NPK formulated fertilizers can be used indifferently to grow second-crop corn.”
Claim · model-written summary
Topdressing nitrogen gave satisfactory results up to an estimated rate of 135 kg ha-1 in second-crop corn.
Verbatim
e0“Nitrogen doses in topdressing have satisfactory results up to the estimated rate of 135 kg ha-1 for the cultivation of second-crop corn.”