scholarly journals Broccoli yield in response to top-dressing fertilization with green manure and biofertilizer

Revista CERES ◽  
2011 ◽  
Vol 58 (5) ◽  
pp. 645-650 ◽  
Author(s):  
Gilberto Bernardo de Freitas ◽  
Márcio Sousa Rocha ◽  
Ricardo Henrique Silva Santos ◽  
Letícia Monteiro da Silva Freitas ◽  
Leandro de Almeida Resende
Keyword(s):  
Green Manure ◽  
Mineral Fertilizer ◽  
Dry Mass ◽  
Experimental Unit ◽  
Productive Performance ◽  
Mineral Fertilization ◽  
Randomized Design ◽  
Protected Cultivation ◽  
Completely Randomized Design ◽  
Organic Compost

The objective of this work was to evaluate the productive performance of broccoli under different top-dressing organic fertilizations. The experiment was conducted under protected cultivation, in a completely randomized design with four replications, with two plants per experimental unit. Broccoli seedlings were produced in a commercial substrate in styrofoam trays. The seedlings were transplanted to plastic pots containing 10.0 L of substrate made up of subsoil and organic compost at the ratio of 3:1 (v/v), respectively, which is equivalent to about 20.0 t ha-1 of organic compost at planting. After seedling establishment, the top-dressing fertilization treatments were applied: gliricidia biomass associated or not with liquid biofertilizer of cattle manure to the soil and bokashi. Two control treatments were established: one with mineral fertilization recommended for the crop and the other without top-dressing fertilization. The broccoli production was evaluated (commercial standard). Plants that received mineral fertilizer were more productive, however, they were not significantly different (p>0.05), by Dunnet test, from the plants fertilized with 2.5 t ha-1 gliricidiabiomass (dry mass) associated with liquid biofertilizer (2.0 L m-2) applied to soil. Top-dressing fertilizations with only gliricidia, at 2.5 and 5.0 t ha-1 of biomass (dry mass), resulted in no significant increase in production of broccoli inflorescence. The use of bokashi in addition to gliricidia biomass and liquid biofertilizer reduced the efficiency of the fertilization compared with plants that received only gliricidia and liquid biofertilizer.

scholarly journals Performance of purslane biomass production (Portulaca oleracea) under different organic substrate concentrations

2020 ◽  
Vol 1 (2) ◽  
Author(s):  
J. Elias de Olvidera ◽  
J. Barboza Pereira ◽  
Ch. G. Da Silva ◽  
A. Das Graças Teixeira ◽  
L. Pin Dalvi ◽  
...  
Keyword(s):  
Dry Weight ◽  
Dry Mass ◽  
Organic Substrate ◽  
Organic Manure ◽  
Cattle Manure ◽  
Experimental Unit ◽  
Organic Fertilization ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Substrate Concentrations

Objectives: To evaluate different concentrations based on cattle manure as an alternative in purslane production. Methodology: The experiment was conducted in a greenhouse at the Center for Agricultural Sciences and Engineering of the Federal University of Espirito Santo in Alegre, ES/ Brazil. The experimental arrangement used was a completely randomized design (CRD) with 5 treatments and 6 replications. The treatments consisted of distinct dosages of the substrate based on cattle manure (0 mL; 125 mL; 250 mL; 500 mL and 1000 mL), which were applied in 5 L of soil, considered as an experimental unit. Root dry mass and aerial dry mass were evaluated. Results: Application of 500 mL of cattle manure provided a higher accumulation of shoot dry mass (25 g/plant). For root dry mass, there were no statistically significant differences. Conclusions: Under the conditions of the present work, it is concluded that the use of organic manure with cattle manure is viable.Keywords: Organic fertilization, fertilization levels, cattle manure; dry weight.

scholarly journals Empire Turf ® chemical fertilization grown on three substrates

2021 ◽  
Vol 5 (4) ◽  
pp. 145-149
Author(s):  
Jéssica Cristina Meira Bezerra ◽  
Matheus Vinicios Leal do Nascimento ◽  
Patrick Luan Ferreira dos Santos ◽  
Brian Turati Rezende ◽  
Regina Maria Monteiro de Castilho
Keyword(s):  
Drinking Water ◽  
Single Dose ◽  
Chemical Analysis ◽  
Dry Mass ◽  
Experimental Unit ◽  
Sand Soil ◽  
Randomized Design ◽  
Chemical Fertilization ◽  
Chlorophyll Index ◽  
Completely Randomized Design

Empire Turf® was the first national cultivar developed, compared to traditional Emerald grass, the Empire is characterized by fast establishment, high erosion control, tolerance to irrigation with non-drinking water, firmer carpets, good drought and salinity tolerance, shading and low demands on soil fertility. However, despite all these desirable characteristics, the development and establishment of the grass will depend on its handling and especially on the substrate in which it is installed. Thus, this study evaluated the development of Empire Turf® conducted on three substrates, with chemical fertilization. The experiment was carried out in containers (volume of 8.5 L) filled with the treatments: T1 - soil; T2 - soil + sand + soil conditioner (1v:1v:1v) and T3 - soil + sand (1v:1v), forming a completely randomized design with three treatments and three repetitions, considering each container as an experimental unit. On March 30, 2019, the first evaluation was carried out, then the treatments received chemical fertilization (NPK+S 13-5-13+14), using 20g of the commercial product diluted in 2L of water, being a single dose per container. After 15 days, in the 2nd evaluation, it was evaluated: foliar chemical analysis, the foliar chlorophyll index (FCI), fresh mass (FM) and dry mass (DM). The results indicated that Empire Turf® presents a rapid response of 15 days, after maintenance fertilization with 10g L-1 of NPK+S (13-5-13+14), having better development when cultivated in soil + sand compound substrate (1v:1v).

scholarly journals Phosphorus utilization by corn as affected by green manure, nitrogen and phosphorus fertilizers

2012 ◽  
Vol 47 (8) ◽  
pp. 1150-1157 ◽  
Author(s):  
Edson Cabral da Silva ◽  
Takashi Muraoka ◽  
Vinícius Ide Franzini ◽  
Felipe Carlos Alvarez Villanueva ◽  
Salatiér Buzetti ◽  
...  
Keyword(s):  
Green Manure ◽  
Pennisetum Glaucum ◽  
Mineral Fertilizer ◽  
Nitrogen And Phosphorus ◽  
Randomized Design ◽  
Sunn Hemp ◽  
P Recovery ◽  
Completely Randomized Design ◽  
Corn Plants ◽  
N Rates

The objective of this work was to evaluate the utilization by corn plants of P from triple superphosphate fertilizer labeled with 32P (32P‑TSP), and of P from soil as affected by N rates and by the green manures (GM) sunn hemp (Crotalaria juncea) and millet (Pennisetum glaucum). The experiment was carried out using pots filled with 5 kg Oxisol (Rhodic Hapludox). A completely randomized design was used, in a 4x4x2 factorial arrangement, with four replicates. The treatments were: four P rates as TSP (0, 0.175, 0.350, and 0.700 g P per pot); four N rates as urea (0, 0.75, 1.50, and 2.25 g N per pot); and sunn hemp or millet as green manure. The additions of N and P by the GM were taken into account. After grain physiologic maturation, corn dry matter, P contents, accumulated P, and P recovery in the different treatments were measured. 32P‑TSP recovery by corn increased with N increasing rates, and decreased with increasing rates of 32P‑TSP. The mineral fertilizer provides most of the accumulated P by corn plants. The recovery of 32P‑TSP by corn was 13.12% in average. The green manure species influence the assimilation of 32P‑TSP by the plants.

scholarly journals Organic and mineral fertilization on productivity and postharvest of okra

2020 ◽  
Vol 14 ◽  
Author(s):  
Jonnathan Richeds Da Silva Sales ◽  
Geocleber Gomes De Sousa ◽  
Raimundo Gleidison Lima Rocha ◽  
Francisco Hermeson Rodrigues Costa ◽  
Elizeu Matos Da Cruz Filho ◽  
...  
Keyword(s):  
Mineral Fertilizer ◽  
Skin Thickness ◽  
Mineral Fertilization ◽  
Randomized Design ◽  
Fruit Skin ◽  
Completely Randomized Design ◽  
The Cost ◽  
Small Producers ◽  
Fruit Mass

Mineral fertilization promotes good results for the components of production and quality of okra fruit; however, it raises the cost of production, making it, sometimes, unviable to the small producers. Thus, this study aimed to evaluate organic and mineral fertilization in different forms, in the components of production, productivity, and quality of okra fruits. The experiment was carried out, under full sunlight, in a completely randomized design (CRD), with six replications. The treatments corresponded to the different forms of fertilization, being: MF = mineral fertilization with NPK (100% of the recommended dose); BF = fertilization with bovine biofertilizer (100% of the NPK contents); VA = fertilization with vegetable ash (100% of NPK contents); MFBF = mineral fertilizer (50%) + bovine biofertilizer (50%); MFVA = mineral fertilizer (50%) + vegetable ash (50%); C = control (without fertilization). The variables analyzed were as follows: number of fruits per plant (NFP), average fruit mass (AFM), fruit length (FL), fruit diameter (FD), fruit skin thickness (FST), and yield (Y). Therefore, the use of bovine biofertilizer in isolation or supplemented with mineral fertilization enhances the production of okra and improves the quality of the fruits, reveling as promising alternatives for growing okra.

ADUBAÇAO ANTECIPADA COM FERTILIZANTES ORGÂNICO E MINERAL ASSOCIADO À CROTALARIAS NA CULTURA DO MILHO

2016 ◽  
Vol 15 (3) ◽  
pp. 499
Author(s):  
PAULO CÉSAR TIMOSSI ◽  
HILTON ROSA DA SILVA JUNIOR ◽  
SUZETE FERNANDES LIMA ◽  
RONALDO CASTRO ◽  
DIEIMISSON PAULO ALMEIDA
Keyword(s):  
Green Manure ◽  
Mineral Fertilizers ◽  
Organic Fertilization ◽  
Mineral Fertilization ◽  
Crotalaria Juncea ◽  
Corn Crop ◽  
Randomized Design ◽  
Organic And Mineral Fertilizers ◽  
Completely Randomized Design ◽  
Crotalaria Spectabilis

RESUMO- A adubação de sistema aliada à adubação verde pode aumentar a disponibilidade de nitrogênio no solo. Objetivou-se na pesquisa investigar se a disponibilidade antecipada de fertilizantes orgânico e mineral sobre o cultivo de Crotalaria spectabilis e Crotalaria juncea influência nas características de produção da cultura do milho. O delineamento experimental adotado foi o inteiramente casualizado, disposto em esquema fatorial 2 x 4, no qual o fator A foi formado por duas espécies de adubos verdes (Crotalaria spectabilis e Crotalaria juncea) e o fator B foi formado por três formas de fertilização (PK, NPK e orgânica) e pela ausência de fertilização, com oito repetições. Foram realizadas avaliações das características agronômicas e produtivas da cultura do milho. O número de fileiras e números de grãos por fileira não diferiu entre as formas de fertilização. A maior altura de plantas de milho, altura de inserção de espiga e produtividade de grãos foi obtida na área cultivada anteriormente com C. spectabilis. A fertilização com NPK e orgânica, com cama-de-aves, resultou em maior produtividade, porém com 800 kg ha-1 de NPK, valor superior ao recomendado. Conclui-se que a antecipação de fertilização do solo, associado ao cultivo de adubos verdes é viável para o cultivo da cultura do milho, a C. spectabilis proporciona maior produtividade de grãos de milho em sucessão e a adubação orgânica, com cama-de-aves, é tão eficiente quanto à adubação mineral com NPK quando antecipada.Palavras-chave: Crotalaria spectabilis, Crotalaria juncea, cama-de-aves, adubação verde, adubação de sistema.PRE-FERTILIZATION WITH ORGANIC AND MINERAL FERTILIZERS ASSOCIATED WITH CROTALARIES IN MAIZEABSTRACT- The fertilization of system combined with green manure can enhance the availability of soil nitrogen. This study aimed to research whether the anticipated availability of organic and mineral fertilizers in the cultivation of Crotalaria spectabilis and Crotalaria juncea affects the characteristics of production of corn crop. The completely randomized design (CRD) was used, with eight replications, in factorial arrangement 2 x 4, in which the factor A was formed by two species of green manure (Crotalaria spectabilis and Crotalaria juncea) and the factor B comprised three forms of fertilization (PK, NPK and organic) and the absence of fertilization. Assessments of agronomic and yield characteristics of corn crop were conducted. As conclusion,the anticipation of soil fertility, associated with green manure cultivation is viable for cultivation of corn crop, the C. spectabilis provides increased productivity of the corn crop, and the organic fertilization with bed of birds is as efficient as the mineral fertilization with NPK.Keywords: Crotalaria spectabilis, Crotalaria juncea, bed-of-birds, green manure, system fertilization.

scholarly journals Seed vigor and amount of soybean straw on seedling emergence and productive performance of wheat

2017 ◽  
Vol 38 (4) ◽  
pp. 2179
Author(s):  
Julia Abati ◽  
Cristian Rafael Brzezinski ◽  
Claudemir Zucareli ◽  
Flávia Werner ◽  
Fernando Augusto Henning
Keyword(s):  
Grain Yield ◽  
Seedling Emergence ◽  
Dry Mass ◽  
Suppressive Effect ◽  
Seed Vigor ◽  
Productive Performance ◽  
Randomized Design ◽  
Shoot Number ◽  
Completely Randomized Design ◽  
Soybean Straw

The use of high-quality seeds is essential to minimize the possible suppressive effect of straw on seedling emergence, contributing to stand establishment and high grain yield. The aim of this study was to assess the influence of seed vigor associated with soil cover with different amounts of soybean straw on seedling emergence and productive performance of wheat. The experiment was conducted in a greenhouse using two wheat cultivars (CD 150 and BRS Gralha Azul) under a completely randomized design in a 2 × 5 factorial scheme with four replications. Factors consisted of two seed vigor levels (high and low) and five amounts of soybean straw (0, 3, 6, 9, and 12 t ha?1). The following assessments were performed: seedling emergence, dry mass of seedling shoot, number of tillers, plant height, yield components (number of spikes per plant, number of grains per spike, and mass of one thousand seeds), grain yield, and harvest index. The use of high vigor seeds favors the emergence and dry mass production of seedling shoot for both cultivars. The increased amount of soybean straw reduces seedling emergence in both cultivars. In the cultivars CD 150 and BRS Gralha Azul, the amounts of soybean straw of 2.45 and 5.40 t ha?1, respectively, result in a higher wheat grain yield.

scholarly journals Performance and biometry of the gastrointestinal tract in growing Japanese quails fed bee pollen

2021 ◽  
Vol 42 (3) ◽  
pp. 1379-1386
Author(s):  
Lorena Mari Sanches ◽  
◽  
Cinthia Eyng ◽  
Rodrigo Garófallo Garcia ◽  
Jomara Broch ◽  
...  
Keyword(s):  
Small Intestine ◽  
Relative Weight ◽  
Experimental Period ◽  
Experimental Unit ◽  
Productive Performance ◽  
Bee Pollen ◽  
Japanese Quails ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Different Levels

The aim of this study was to evaluate the effects of different levels of bee pollen in the diet of growing Japanese quails on productive performance, relative weight of the gastrointestinal organs and length of small and large intestines. A total of 650 one-day-old female Japanese quails were distributed in a completely randomized design with five treatments according to the dietary levels of bee pollen (0.0, 0.4, 0.8, 1.2, and 1.6%), five replicates, and 26 birds per experimental unit. At the end of the experimental period (35 days of age), the performance and relative weight of the gastrointestinal organs and length of small and large intestines were evaluated. The dietary inclusion of bee pollen did not influence (P > 0.05) performance, relative weight of proventriculus, gizzard, pancreas, liver, and large intestine, as well as the length of small and large intestines. However, a linear reduction (P < 0.05) was observed in the relative weight of small intestine as dietary bee pollen levels increased. The inclusion of bee pollen from 0.4 to 1.6% in the diet of growing Japanese quails did neither improve productive performance nor alter the biometry of digestive organs.

scholarly journals Effect of drying and/or warming piglets at birth under warm farrowing room temperatures on piglet rectal temperature over the first 24 h after birth

2021 ◽  
Author(s):  
Katherine D Vande Pol ◽  
Andres F Tolosa ◽  
Caleb M Shull ◽  
Catherine B Brown ◽  
Stephan A S Alencar ◽  
...  
Keyword(s):  
Birth Weight ◽  
Birth Control ◽  
Rectal Temperature ◽  
Fixed Effects ◽  
Random Effect ◽  
Repeated Measure ◽  
Experimental Unit ◽  
Concentration Data ◽  
Randomized Design ◽  
Completely Randomized Design

Abstract Piglets experience a decline in body temperature immediately after birth, and both drying and warming piglets at birth reduces this. However, these interventions may have less effective at higher farrowing room temperatures. This study was carried out at a commercial facility to compare the effect of drying and/or warming piglets at birth on postnatal rectal temperature (RT) under relatively warm farrowing room temperatures (26.6 ± 2.09°C). Forty-five sows/litters were used in a completely randomized design to compare three Intervention Treatments (applied at birth): Control (no treatment); Warming (piglets placed in a plastic box under a heat lamp for 30 min); Drying+Warming (piglets dried with desiccant and warmed as above). Temperatures in the warming boxes over the study period averaged 37.7 ± 2.75°C. At birth, piglets were weighed; RT temperature was measured at 0, 10, 20, 30, 45, 60, 120, and 1440 min after birth. Blood samples were collected at 24 h after birth from a subsample of one piglet from each birth weight quartile within each litter to measure plasma immunocrit concentration. Data were analyzed using PROC MIXED of SAS with litter as the experimental unit; and piglet a subsample of litter. The model for analysis of piglet rectal temperature included fixed effects of treatment, measurement time (repeated measure), the interaction, and the random effect of sow. Compared to the Control, piglet RT were higher (P ≤ 0.05) for the Warming treatment between 10 and 60 min, and higher (P ≤ 0.05) for the Drying+Warming treatment between 10 and 120 min after birth. Rectal temperatures were higher (P ≤ 0.05) for the Drying+Warming than the Warming treatment between 20 and 120 min. Responses to drying and/or warming were greater for low birth weight piglets (&lt; 1.0 kg) than heavier littermates, but were generally less than observed in previous experiments with similar treatments carried out under cooler temperatures. Piglet immunocrit values were lower (P ≤ 0.05) for the Drying+Warming treatment compared to the other treatments, which were similar (P &gt; 0.05). Immunocrit values tended (P = 0.10) to be lower for light (&lt; 1.0 kg) compared to heavier birth weight piglets. In conclusion, drying and warming piglets at birth was more effective for reducing piglet RT decline after birth than warming alone, though the effect was less than observed in previous studies carried out under cooler farrowing room temperatures.

scholarly journals Competitiveness of alexandergrass or Bengal dayflower with soybean

2010 ◽  
Vol 28 (3) ◽  
pp. 515-522 ◽  
Author(s):  
A.C.R. Dias ◽  
S.J.P. Carvalho ◽  
L.W. Marcolini ◽  
M.S.C. Melo ◽  
P.J. Christoffoleti
Keyword(s):  
Competitive Ability ◽  
Dry Mass ◽  
Total Density ◽  
Weed Species ◽  
Replacement Series ◽  
Commelina Benghalensis ◽  
Randomized Design ◽  
Full Flowering ◽  
Completely Randomized Design ◽  
Soybean Plants

Weeds compete with field crops mainly for water, light and nutrients, and the degree of competition is affected by the weed density and the intrinsic competitive ability of each plant species in coexistence. The objective of this research was to compare the competitiveness of alexandergrass (Brachiaria plantaginea) or Bengal dayflower (Commelina benghalensis) in coexistence with soybean, cv. M-Soy 8045. A factorial experiment (2 x 5) with two weed species and five competition proportions was carried out in a completely randomized design with four replicates. Proportions were based on a replacement series competition design, always maintaining the total density of four plants per 10 L plastic pots, which corresponded to 60 plants m ². The weed-crop proportions were: 0:4; 1:3; 2:2; 3:1; 4:0; that corresponded to the proportion of 100, 75, 50, 25 and 0% of soybean plants and the opposite for weeds, B. plantaginea or C. benghalensis plants. Leaf area, shoot dry mass of the weeds and soybean and number of soybean trifoliate leaves were evaluated when the soybean reached the phenologic stage of full flowering. B. plantaginea was a better competitor than soybean plants. Otherwise, C. benghalensis revealed a similar competitive ability that of the soybean. In both cases, there were evidences that intraspecific competition was more important.

scholarly journals INFLUENCE OF SUGARCANE STRAW AND SOWING DEPTH ON THE EMERGENCE OF WEED SPECIES

2015 ◽  
Vol 33 (3) ◽  
pp. 405-412 ◽  
Author(s):  
P. V. SILVA ◽  
P. A. MONQUERO ◽  
F. B. SILVA ◽  
N. C. BEVILAQUA ◽  
M. R. MALARDO
Keyword(s):  
Ricinus Communis ◽  
Seedling Emergence ◽  
Dry Mass ◽  
Weed Species ◽  
Sowing Depth ◽  
Sugarcane Straw ◽  
Randomized Design ◽  
Significant Difference ◽  
Completely Randomized Design ◽  
Luffa Aegyptiaca

ABSTRACT This study aimed to understand the influence of sowing depth and the amount of sugarcane straw on the emergence of weed species Luffa aegyptiaca Miller (Cucurbitaceae); Mucuna aterrima Piper & Tracy (Fabaceae - Leguminosae) and Ricinus communis (Euphorbiaceae). A completely randomized design with a 5 x 4 x 3 factorial layout with four replications was used, at five sowing depths (0, 2, 4, 8 and 10 cm), four different amounts of sugarcane straw (0, 5, 10 and 15 t ha-1) and three different evaluation periods (7, 14 and 21 days after sowing). After sowing, different amounts of sugarcane straw (0, 5, 10 and 15 t ha-1) were deposited on soil. Seedling emergence was analyzed at 7, 14 and 21 days after sowing, counting the number of seedlings that had emerged. At the end of the trial, weed height (cm), leaf area (cm2) and shoot dry mass (g) were measured. In relation to emergence ability, studied species presented different responses according to sowing depth and to the amount of sugarcane straw deposited on the soil. For the L.aegyptiacaand M.aterrima, no significant difference was observed in the interaction between depth and sugarcane straw, showing the adaptation of these species to no-burn sugarcane system. For R.communis, seeds placed at 0 cm of sugar cane straw depth were observed to favor the emergence of seedlings.

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