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Journal of Experimental Agriculture International

Journal of Experimental Agriculture International, ..,Vol.: 15, Issue.: 1

 

Short Research Article

 

Response to Late Foliar Nitrogen Application in Soybean Productivity

 

 

Jeissica Taline Prochnow1, Larisse Pinheiro Schmid1, João Carlos Medeiros1 and Fabio Mielezrski1*

1Universidade Federal do Piauí, Rodovia BR-135, Km 3 - Bairro Planalto Horizonte, CEP 64900-000, Bom Jesus-PI, Brazil.

 

Abstracts

 

To achieve high productivity in soybeans, a balanced fertilization and careful management is necessary during the period in which the plant requires larger amounts of nitrogen is essential. This study evaluated the effect of foliar nitrogen fertilization using ammonium sulfate at early grain filling stage of soybean crop. The experiment was performed during 2015/2016 crop in the state of Piauí, Brazil. Nitrogen was applied at doses of, 3, 6, 9, 12, and 15 kg ha-1 in a randomized block design with four replications. Data was recorded for number and length of pods, thousand seed weight and yield. Late foliar application of nitrogen showed no significant difference in grain yield of soybean plant.

 

Keywords :

Glycine max; plant nutrition; foliar application; yield.

 

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