“…It is noted fruits rang contributio The increase of the okra fruits diameter from increasing biofertilizer doses may be related to the availability of essential nutrients to the plants, which are provided by the biofertilizers (Viana et al, 2013), promoting greater growth of the fruit. Lima et al (2018) found that the increase on the doses of bovine biofertilizer advanced the increase on the strawberry fruit diameter, in the dose of 500 mL per week -1 plant -1 , was responsible for the maximum diameter of 21.41 mm. Opposite results were found by Silva et al (2016), where it was not found significant effect of the use of biofertilizer on the fig fruit diameter.…”
This study aimed to evaluate the yield and the quality of the fruits of two okra cultivars (Abelmoschus esculentus), due to the varying doses and types of biofertilizers. The experiment was conducted the period September to December of 2017, at the experimental Piroás Farm, in the city of Redenção-CE, Brazil. The experimental design used was entirely randomized, in factorial design 5 × 2 × 2, referring to the five doses of the biofertilizer (0, 0.5, 1, 1.5 and 2.0 L plant-1 week-1), versus two types of liquid biofertilizers (bovine and caprine under aerobic fermentation) and two okra cultivars: Santa Cruz 47 and Clemson Spineless. The number of the fruits per plant, the average mass of the fruits, yield, the length and diameter of the fruit and peel thickness of the okra fruit, were increased according to the increase on the biofertilizers doses. The cultivar “Santa Cruz 47” presented higher values in the length of the fruit, whereas the cultivar “Clemson Americano 80” was superior in the variables “average fruit mass” and “diameter of the fruits”.
“…It is noted fruits rang contributio The increase of the okra fruits diameter from increasing biofertilizer doses may be related to the availability of essential nutrients to the plants, which are provided by the biofertilizers (Viana et al, 2013), promoting greater growth of the fruit. Lima et al (2018) found that the increase on the doses of bovine biofertilizer advanced the increase on the strawberry fruit diameter, in the dose of 500 mL per week -1 plant -1 , was responsible for the maximum diameter of 21.41 mm. Opposite results were found by Silva et al (2016), where it was not found significant effect of the use of biofertilizer on the fig fruit diameter.…”
This study aimed to evaluate the yield and the quality of the fruits of two okra cultivars (Abelmoschus esculentus), due to the varying doses and types of biofertilizers. The experiment was conducted the period September to December of 2017, at the experimental Piroás Farm, in the city of Redenção-CE, Brazil. The experimental design used was entirely randomized, in factorial design 5 × 2 × 2, referring to the five doses of the biofertilizer (0, 0.5, 1, 1.5 and 2.0 L plant-1 week-1), versus two types of liquid biofertilizers (bovine and caprine under aerobic fermentation) and two okra cultivars: Santa Cruz 47 and Clemson Spineless. The number of the fruits per plant, the average mass of the fruits, yield, the length and diameter of the fruit and peel thickness of the okra fruit, were increased according to the increase on the biofertilizers doses. The cultivar “Santa Cruz 47” presented higher values in the length of the fruit, whereas the cultivar “Clemson Americano 80” was superior in the variables “average fruit mass” and “diameter of the fruits”.
“…Santos et al (2019) verificou aumento de diâmetro e comprimento nos frutos de morangueiro na dose de 1250 mL por semana. Lima et al (2018) cita o incremento na biomassa da parte aérea e total de morangueiro, ressaltando que o biofertilizante apresenta como excelente fonte nutricional. Aguiar et al (2017), utilizou o biofertilizante bovino na irrigação de plantas de maracujazeiro e constatou o aumento no número de frutos e produção por planta.…”
Os biofertilizantes de origem animal, apresentam alto teor de nutrientes que possibilitam seu uso na adubação vegetal. No entanto, para ser utilizado é necessária sua caracterização química, pois podem apresentar efeitos indesejados de toxicidade para o solo e plantas. Objetivou-se com o presente trabalho, avaliar o efeito de dois biofertilizantes (bovino e ovino) sobre a germinação e crescimento inicial de milho e feijão por meio de teste ecotoxicológico. Os biofertilizantes bovino e ovino foram diluídos utilizando água deionizada nas concentrações de: 0, 150, 300, 450 e 600 mL.L-1. As caixas tipo gerbox foram forradas com papel de filtro umedecido com 7 mL de solução de biofertilizante e 18 sementes foram distribuídas em cada caixa, onde permaneceram em câmara de crescimento a 25 oC, com fotoperíodo de 12 h, por cinco dias. O delineamento utilizado foi inteiramente casualizado (DIC) em fatorial 2 x 5 (biofertilizantes x concentrações) com três repetições. As variáveis avaliadas foram: porcentagem de germinação, comprimento de raiz e de parte aérea. Os dados foram submetidos a análise de variância e teste de Tukey a 5% de probabilidade. O aumento no comprimento de raiz de milho foi verificado em ambos os biofertilizantes na concentração de 150 mL.L-1. A concentração de 600 mL.L-1 do biofertilizante bovino promoveu maior porcentagem da germinação de feijão comparado ao ovino. Porém, os maiores valores de comprimento de parte aérea e de raiz foram observados no ovino para a mesma concentração. Os biofertilizantes não apresentaram efeitos tóxicos na germinação e crescimento de ambas as espécies.
“…They are renewable low-cost nutrient sources that can substitute for chemical fertilizers in an eco-friendly manner [11,12]. Biofertilizers are plantnourishing organic fertilizers that are simple to make and can be applied feasibly in the oil palm plantation area [13]. Compared to the control tea plants.…”
The present study aimed to characterize the potential plant growth-promoting rhizobacteria (PGPR) based on biochemical tests based on eight bacterial isolates, and to identify potential PGPR based on the 16S rRNA sequencing molecular method. Eight potential PGPR strains (UPMC1166, UPMC1168, UPMC1254, UPMC1376, UPMC1389, UPMC1393, UPMC703 and UPMC704) isolated from the soils in the oil palm (Elaeis guineensis) estates across Malaysia were selected because of their most PGPR activities. They were screened for nitrogen fixation, phosphate and potassium solubilization, and production of indole-3-acetic acid (IAA). All isolates showed the ability to grow between pH 2 to 9 and survive from 2 to 15% (w/v) of the salt medium. Among the isolated PGPRs, four PGPRs (UPMC1166, UPMC1168, UPMC1254 and UPMC1389) showed the ability to fix nitrogen and had the potential to produce IAA. Furthermore, two PGPRs (UPMC1393 and UPMC1376) demonstrated the ability to solubilize phosphate, while three PGPRs (UPMC703, UPMC704, and UPMC1393) showed the ability to solubilize potassium. Therefore, all the above eight PGPR isolates can benefit the oil palm cultivation industry. The molecular identification based on 16S rRNA gene sequence revealed that UPMC1166 was identified as Bacillus methylotrophicus; UPMC1168 as B. siamensis; UPMC1254 as B. subtilis; UPMC1389 as B. albus; UPMC1376 as Lactobacillus plantarum; UPMC1393 as B. marisflavi; UPMC703 as Burkhoderiaanthina and UPMC704 as B. metallica. These novel strains can be further investigated for their viability and effectiveness for bio-organic fertilizer production and application in the immature stage of oil palm growth.
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