Production and nitrate content of rocket fertilized with poltry litter or cattle manure
Journal Title: Revista Verde de Agroecologia e Desenvolvimento Sustentável - Year 2017, Vol 12, Issue 1
Abstract
Plants needs high amount of nitrogen. It is also an abundant element in organic fertilizers. If absorbed in excess can accumulate in the vacuole of the cells of the plants as nitrate. Excessive intake of nitrate for human or animal can result in the formation of toxic metmyoglobin and nitrosamines. This study aimed to evaluate the fertilization with poultry litter and cattle manure on productivity, and total nitric N content in rocket culture. The experimental design was randomized blocks in a 2x5 factorial, with four replications. The treatments consisted of a combination of two organic fertilizers (cattle mannure and poltry litter) and five doses (0, 10, 20, 30 and 40 t ha-1). The experiment was carried out in field conditions, in a Oxisol dystrophic. The experimental plot consisted of four rows, spaced 0.25 m, and 1 m in length. 40 days after transplanting the seedlings were evaluated the plant height, number of leaves per plant, total N uptake and nitrate (N-NO3) in the rocket leaves. The highest value of fresh matter plants was obtained with 24.14 t ha-1 of manure, whereas with poultry litter productivity increased up to 40 t ha-1. The N-NO3 content increased linearly with cattle manure doses, but did not exceed the tolerable limits with both sources.
Authors and Affiliations
Adilson Pelá, Geovani Soares da Silva Júnio, Renan Cesar Dias da Silva, Camila Santos Silva, Gláucia de Mello Pelá
Keywords
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- EP ID EP251882
- DOI 10.18378/rvads.v12i1.4476
- Views 170
- Downloads 0
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