Produtividade do quiabeiro adubado com esterco bovino e NPK

Abstract

R E S U M OObjetivou-se, neste trabalho, avaliar o rendimento do quiabeiro em função do emprego de doses de esterco bovino na presença e ausência de NPK. O delineamento experimental empregado foi em blocos casualizados cujos tratamentos foram distribuídos em arranjo fatorial 6 x 2, sendo seis doses de esterco bovino (0, 10, 20, 30, 40 Yield of okra fertilized with bovine manure and NPK A B S T R A C TThe objective of this study was to evaluate the performance of okra under doses of bovine manure in the presence and the absence of NPK. The experimental design was in randomized blocks with treatments arranged in a factorial 6 x 2, six doses of bovine manure (0, 10, 20, 30, 40 and 50 t ha -1 ), with and without NPK, with four replications. The maximum numbers of 37 and 26 fruits plant -1 were obtained at estimated doses of 20 and 26 t ha -1 of bovine manure, respectively with and without NPK. Estimated doses of 23 and 28 t ha -1 of manure were responsible for maximum commercial fruit yields of 21 and 17 t ha -1 , with and without NPK, respectively. The maximum concentration of N in okra leaf were 36.9 and 33 g kg -1 obtained under the dose of 50 t ha -1 of manure, respectively with and without NPK. The P content in leaf decreased with increasing doses of bovine manure with a value of 2.4 g kg -1 under the dose of 50 t ha -1 with NPK, while without NPK resulted on an average of 2.2 g kg -1. The K content in leaf in the presence of NPK fertilization was 26.7 g kg -1 under the dose of 50 t ha -1

Yield of the Okra Submitted to Nitrogen Rates and Wastewater in Northeast Brazilian Semiarid Region

“…Our results for the NFP were similar to the 37 fruits obtained by Oliveira et al (2014) . Regarding PROD, the values verified by Oliveira et al (2003) with the okra cultivar Santa Cruz was lower to that of the present work.…”

“…This element, when supplied in adequate amounts, promotes significant increases in the stages of growth and development of plants, as they participate in their metabolism through enzymes, amino acids, proteins, pigments and nucleic acids, fundamental constituents of protoplasm, and chlorophyll during the process of photosynthesis (Oliveira et al, 2003;Akande et al, 2010;Olaniyi et al, 2010;Oliveira et al, 2014;Medeiros et al, 2015;Souza et al, 2017).…”

“…Due to the plants rusticity characteristics, mainly the tolerance to high temperatures during cultivation (Oliveira et al, 2014), the Brazilian Northeast semiarid regions offer excellent climatic conditions for the cultivation of this vegetable.…”

“…There are several recommendations of this nutrient, varying from 60 to 180 kg ha -1 , depending on the soil fertility of the growing region (Oliveira et al, 2014). However, there is little knowledge regarding the ideal amounts to be supplied when using wastewater for irrigation of plants in a semiarid region.…”

Crescimento E Alocação De Fitomassa Do Quiabeiro Submetido À Doses De Nitrogênio E Irrigação Com Água Residuária

“…Neste contexto, o quiabeiro (Abelmoschus esculentus L.) surge como uma ótima alternativa, devido suas características de rusticidade, principalmente, à tolerância ao calor e a pouca exigência por tecnologias durante o cultivo, sendo bastante cultivado em regiões de clima tropical e subtropical (OLIVEIRA et al, 2014;MEDEIROS et al, 2018). Em termos nutricionais, essa cultura é bastante exigente em nitrogênio, sendo o segundo nutriente mais absorvido e o que proporciona maior resposta em sua produção (ZUBAIRU et al, 2017).…”