Evaluation of sources of nitrogen and times of application in top dressing for the cultivation of the wheat
DOI:
https://doi.org/10.5433/1679-0359.2005v26n2p141Keywords:
Triticum aestivum L, Nitrogen, Manuring, Plant nutrition.Abstract
The objective of this work was to test sources of nitrogen and application times in top dressing for the wheat crop in the area of Mauá da Serra-Pr. It was used wheat ‘CD-104’ in direct sowing system, using a spacing between plants of 0.17 m and a density of 350 seeds m-2, being accomplished a base fertilizer applying 400kg ha-1 of the formulated fertilizer 10-20-10. The treatments had been constituted of 3 sources of nitrogen (Urea, Sulfate of Ammonium and Nitrate of Ammonium), applied in broadcasting in 3 different times (soon after the sowing, in the tillering and in the booting), resulting in 9 treatments. Each parcel was constituted by an area of 4.0m x 5.0m being considered as useful area the 5 central lines. The used experimental design was of blocks at random with 4 replications . There are no differences in the yield of grains among sources of N not even for the application times. The late application at the booting of the crop caused a production of grains of better quality with larger weight and protein content.
Downloads
Published
How to Cite
Issue
Section
License
Semina: Ciências Agrárias adopts the CC-BY-NC license for its publications, the copyright being held by the author, in cases of republication we recommend that authors indicate first publication in this journal.
This license allows you to copy and redistribute the material in any medium or format, remix, transform and develop the material, as long as it is not for commercial purposes. And due credit must be given to the creator.
The opinions expressed by the authors of the articles are their sole responsibility.
The magazine reserves the right to make normative, orthographic and grammatical changes to the originals in order to maintain the cultured standard of the language and the credibility of the vehicle. However, it will respect the writing style of the authors. Changes, corrections or suggestions of a conceptual nature will be sent to the authors when necessary.
