Monoammonium phosphate coated with polymer in sunflower crop
DOI:
https://doi.org/10.14808/sci.plena.2022.070212Keywords:
Helianthus annuus L., sources of phosphorus, low liberation fertilizerAbstract
The use of polymers for the coating of phosphate fertilizers allows for a slower release of nutrients and, therefore, reduces their susceptibility to immobilization processes in the soil. Thus, the objective was to evaluate four sunflower varieties submitted to fertilization with phosphorus with and without polymer coatings in the Brazilian Cerrado. The research was carried out under field conditions in the municipality of Cassilândia (MS), with rainy summers and dry winters. The experimental design used was randomized blocks in a 4x2 factorial scheme, with 4 sunflower varieties (Embrapa 122, IAC Iarama, IAC Uruguay and Catissol 01) and 2 sources of phosphorus (supertriple phosphate without polymers and monoammonium phosphate with polymers), with 4 replications. The experimental unit (plot) consisted of 4 plants rows of 5 m long, spaced 0.70 m between rows, with a population of 50,000 plants per hectare. The variables evaluated were number of photosynthetically active leaves, height of plants and diameter of stem, diameter and number of head, mass of 1000 achenes and the productivity of grain. The use of polymers in the formulation of monoammonium phosphate fertilizer presents potential for use in sunflower crop. The sunflower plant response to fertilization with coated monoammonium phosphate depends on the cultivar used.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2022 Rafael Pereira da Costa, Carlos Eduardo Pereira, Ana Lúcia Pereira Kikuti, Hamilton Kikuti
![Creative Commons License](http://i.creativecommons.org/l/by/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work