Organic fertilization and forms of application in Allium cepa growth, yield and bulb quality

José M F De L Cruz,João H B Da Silva,Francisco De A F D Da Silva Silva,Valéria F De O Sousa,Otília R De Farias,Ademar P De Oliveira

doi:10.1590/1807-1929/agriambi.v25n10p670-676

José M F De L Cruz, João H B Da Silva + Show 4 more

Open Access

https://doi.org/10.1590/1807-1929/agriambi.v25n10p670-676

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Abstract

ABSTRACT Onion is the third most cultivated vegetable in Brazil, and organic fertilization can increase its productivity. The objective of this study was to evaluate the effect of doses of cattle manure and forms of applications on the growth, yield and bulb quality of onion cv. IPA-11 Vale Ouro. The experimental design used was randomized blocks, with four replicates, in a 6 × 2 factorial scheme, corresponding to six doses of cattle manure (0; 10; 20; 30; 40 and 50 t ha-1) and two forms of application (incorporated and topdressing). The onion growth increased with cattle manure doses. Using cattle manure fertilization is feasible for the production of onion, however high doses, regardless of the form of application are not recommended. Incorporated manure increases the leaf concentrations of primary macronutrients in onion and promotes 15 and 20% increment in total and marketable yield, respectively. The cattle manure incorporated into the soil increased the production of bulbs within the class of greater acceptance by consumers.

Highlights

Onion (Allium cepa L.) is the third most cultivated vegetable in Brazil, with a production of around 1.6 million tons in 2019, and the South and Northeast regions account for 50 and 22% of total production, respectively (IBGE, 2019)
The onion growth increased with cattle manure doses
Using cattle manure fertilization is feasible for the production of onion, high doses, regardless of the form of application are not recommended

Summary

Introduction

Onion (Allium cepa L.) is the third most cultivated vegetable in Brazil, with a production of around 1.6 million tons in 2019, and the South and Northeast regions account for 50 and 22% of total production, respectively (IBGE, 2019). This crop is highly appreciated all over the world, and its main form of consumption is fresh, in the form of salads and as condiment and seasoning in the diet (Albuquerque et al, 2013). As a measure to meet the nutritional needs of this crop, organic fertilization, through the addition of different sources of organic matter, has been shown to be very promising (Belem et al, 2020), and the demand for techniques suitable for family farming for onion production has become constant, especially aiming at agroecological methods (Santos et al, 2012)

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