Bone meal as a source of phosphorus for forage sugarcane1

ABSTRACT Phosphate fertilizers of organic origin may represent a viable alternative for the replacement of mineral fertilizers in the nutrition of crops such as forage sugarcane. This study aimed to investigate the effects of phosphate fertilization with bone meal and single superphosphate on the concentration of phosphorus (P) in the plant tissue, total soluble solids and yield aspects of forage sugarcane. A complete randomized block design was used, in a 2 × 5 factorial scheme, with four replicates. The treatments consisted of combining two phosphorus sources (single superphosphate and bone meal) and five P2O5 doses (0 kg ha-1, 50 kg ha-1, 100 kg ha-1, 150 kg ha-1 and 200 kg ha-1). Sugarcane plants fertilized with the addition of bone meal showed an increase in height and number of nodes (13 % and 15 %, respectively), when compared to the mineral fertilization with single superphosphate. The sugarcane attributes, in response to the P2O5 doses, were described by quadratic functions. The dose of 95.80 kg ha-1 of P2O5 in the bone meal led to the highest concentration of P in the plant tissue (3.60 g kg-1). The comparison between the sources of P at the doses of 100 kg ha-1 and 150 kg ha-1 of P2O5 showed that the total soluble solids content was 8.62 % and 13.84 % higher, respectively, in plants fertilized with bone meal.

Download Full-text

PENGARUH JENIS RAGI PADA FERMENTASI KAKAO TERHADAP KARAKTERISTIK CUKA KAKAO

Jurnal Ilmu dan Teknologi Pangan (ITEPA) ◽

10.24843/itepa.2019.v08.i03.p11 ◽

2019 ◽

Vol 8 (3) ◽

pp. 323

Author(s):

Nur Wienda Permata Wulandari ◽

Dewa Gde Mayun Permana ◽

Agus Selamet Duniaji

Keyword(s):

Fermentation Process ◽

Block Design ◽

Total Sugar ◽

Soluble Solids ◽

Total Acid ◽

Total Soluble Solids ◽

Anova Test ◽

Randomized Block Design

This research was aimed to determine the effect type of “ragi” on the fermentation process of cocoa and to determine type of “ragi” that can produce vinegar with the best characteristics. This research used Randomized Block Design (RBD) with four types treatment of “ragi”, these are: without the addition of “ragi”, addition of bread yeast, addition of “tape ragi”, and addition of combination “ragi”. “Ragi” additions were carried out as much as 1% in each treatment. This research was repeated three times, resulting in 12 experimental units. The data was analyzed with Anova test and continued with Duncan test if the treatment had a significant effect (P<0.05) on the observed variable. This research showed that the treatment fermentation addition of tape ragi was the best treatment with characteristic 5.05 pH, 0.88% total acid, 3.33% total soluble solids, 0.59% total sugar and 0% alcohol. Keyword: cocoa, ragi, vinegar, fermentation

Download Full-text

Productivity and quality of Mombasa grass under fertilization with pig deep-litter and NPK

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v24n7p437-443 ◽

2020 ◽

Vol 24 (7) ◽

pp. 437-443

Author(s):

Marina da C. Guerrero ◽

Tiago R. de Sousa ◽

Saulo A. de Oliveira ◽

Rômulo R. Caldeira ◽

Adilson Pelá

Keyword(s):

Block Design ◽

Organic Fertilizer ◽

Dry Mass ◽

Point Of View ◽

Neutral Detergent Fiber ◽

Mineral Fertilizers ◽

Panicum Maximum ◽

Mineral Fertilization ◽

Economic Point ◽

Randomized Block Design

ABSTRACT The use of pig deep-litter (PDL) in pasture fertilization can be an important alternative from an environmental and economic point of view. This study was conducted to evaluate the fertilization with PDL exclusively or in association with mineral fertilizers on the quality and productivity of Panicum maximum cv. Mombasa. The experiment was carried out in Ipameri, GO, Brazil. The design was a randomized block design in a 2 x 5 factorial scheme with four repetitions, in plots of 24 m². The doses of PDL (0; 5; 10; 15 and 20 Mg ha-1) were tested, with or without fertilization with NPK (50 kg ha-1 of P2O5, 10 kg ha-1 of K2O and 10 kg ha-1 of N). The organic fertilizer was applied broadcast at the planting of the pasture, and the mineral fertilizers were split and applied at planting and as topdressing. Dry mass, crude protein, acid detergent fiber and neutral detergent fiber were evaluated. PDL doses associated with mineral fertilization led to linear increases from 52 to 282% in the analyzed variables and better bromatological composition. PDL application is beneficial to the production of pastures, and increasing applications up to the PDL dose of 20 Mg ha-1 associated with mineral fertilization promoted better quantitative and qualitative results. With exclusive fertilization with PDL, the gains in quality and productivity were more modest.

Download Full-text

Influence of varieties and spacing on yield and quality of sprouting broccoli (Brassica oleracea L.)

ANNALS OF PLANT AND SOIL RESEARCH ◽

10.47815/apsr.2021.10039 ◽

2021 ◽

pp. 108-111

Author(s):

PRADEEP KUMAR

Keyword(s):

Brassica Oleracea ◽

Block Design ◽

Quality Parameters ◽

Soluble Solids ◽

Rabi Season ◽

Total Soluble Solids ◽

Yield And Quality ◽

Randomized Block Design ◽

Brassica Oleracea L

A field experiment was undertaken at B.B.A. University, Lucknow (UP) during rabi season to study the effect of varieties and spacings on yield and quality characters of sprouting broccoli (Brassica oleracea L. var. italica Plenck). Four varieties viz. V1- Pusa Broccoli KTS-1, V2-Palam Kanchan , V3-Palam Vichitra , V4-Palam Samridhi and four spacings viz.- S1- 60x45 cm, S2 - 60×30 cm, S3 - 45×45 cm, S4 - 45×30 cm were evaluated in factorial randomized block design with three replications. Among the varieties, Pusa Broccoli KTS-1had takenearliest days for curd initiation (47.9) and day taken to curd harvest after curd initiation (22.5). Variety Pusa Broccoli KTS-1 significantly produced the highest curd diameter (118.9 mm),weight of curd with gourd leaf(0.9kg), weight of curd without gourd leaf (0.4 kg), yield (24.5 tha-1),ascorbic acid (79.1 mg/100g) and total soluble solids (8.5oBrix). On the other hand, minimum values of these parameters were recorded in Pusa Samridhi. Spacing of 60x45 cm took minimum days (48.9) for curd initiation, (22.5) and days taken to curd harvest after curd initiation. Maximum curd diameter (116.8 mm), weight of curd with gourd leaf (0.9 kg), weight of curd without gourd leaf (0.4 kg) were recorded in 60x45 cm spacing. Quality parameters were also markedly affected with variety Pusa Broccoli KTS-1 and spacing 60x45 cm and relatively higher value of vitamin C (79.9 mg/100g) and total soluble solids (8.80Brix) were recorded under V1S1 treatment.

Download Full-text

Nutrients demand of cactus forage

10.31220/osf.io/azvq3 ◽

2019 ◽

Author(s):

João Macedo Moreira ◽

Aldrin Martin Pérez-Marin ◽

Jucilene Silva Araújo ◽

George Rodrigues Lambais ◽

Aldo Sales

Keyword(s):

Block Design ◽

Nutrient Utilization ◽

Nutrient Recovery ◽

Fertilizer Treatment ◽

Treatment Control ◽

Mineral Fertilization ◽

Randomized Block Design ◽

Nutrient Use ◽

Different Types ◽

Semi Arid Region

The study aimed to evaluate the efficiency of nutrient use in three cactus forage (CF) cultivars (Opuntia stricta and Nopalea cochenillifera), 365 days after planting under different types of fertilizer in two research sites (Condado and Riachão) of the semi-arid region of Paraiba state, Brazil. The experimental design was a randomized block design with treatments in a factorial scheme (3×4), three cultivars of CF (Orelha de elefante Mexicana; Miúda; Bahiana), and four fertilizer treatment (Control; Manure; Manure with Nitrogen; Mineral fertilization) with four replications. The CF cultivars did not differ significantly in nutrient use. That means of physiological efficiency by CF cultivars were 1.62, and 2.36 kg of biomass per kg of nutrient applied in Condado and Riachão, respectively. The efficiency of nutrient recovery was 16% for the Condado, according the following order: K> P> Ca> N> C = Mg and 12% for Riachão: K> P> N> C = Ca = Mg. In the two research sites, the treatment with mineral fertilization significantly increased the efficiency use of N, P and K in comparison to the other treatments. The average for efficiency of nutrient utilization was 25% and 19% for Condado and Riachão, respectively, in the following order for Condado: K> P> N> Ca = Mg> C, and Riachão: K> P> N> C> Mg = Ca. In a CF production system aiming to obtain a yearly harvest cycle, it is necessary to replenish of K and P to maintain the nutritional balance between the soil and CF plant.

Download Full-text

Can Sustained Deficit Irrigation Save Water and Meet the Quality Characteristics of Mango?

Agriculture ◽

10.3390/agriculture11050448 ◽

2021 ◽

Vol 11 (5) ◽

pp. 448

Author(s):

Leontina Lipan ◽

Aarón A. Carbonell-Pedro ◽

Belén Cárceles Rodríguez ◽

Víctor Hugo Durán-Zuazo ◽

Dionisio Franco Tarifa ◽

...

Keyword(s):

Irrigation Water ◽

Deficit Irrigation ◽

Block Design ◽

Water Productivity ◽

Titratable Acidity ◽

Soluble Solids ◽

Total Phenolic ◽

Drought Tolerant ◽

Randomized Block Design ◽

Peel Color

Mango is one of the most cultivated tropical fruits worldwide and one of few drought-tolerant plants. Thus, in this study the effect of a sustained deficit irrigation (SDI) strategy on mango yield and quality was assessed with the aim of reducing irrigation water in mango crop. A randomized block design with four treatments was developed: (i) full irrigation (FI), assuring the crop’s water needs, and three levels of SDI receiving 75%, 50%, and 33% of irrigation water (SDI75, SDI50, and SDI33). Yield, morphology, color, titratable acidity (TA), total soluble solids (TSS), organic acids (OA), sugars, minerals, fiber, antioxidant activity (AA), and total phenolic content (TPC) were analyzed. The yield was reduced in SDI conditions (8%, 11%, and 20% for SDI75, SDI50, and SDI33, respectively), but the irrigation water productivity was higher in all SDI regimes. SDI significantly reduced the mango size, with SDI33 generating the smallest mangoes. Peel color significantly changed after 13 days of ripening, with SDI75 being the least ripe. The TA, AA, and citric acid were higher in SDI75, while the TPC and fiber increased in all SDI levels. Consequently, SDI reduced the mango size but increased the functionality of samples, without a severe detrimental effect on the yield.

Download Full-text

Melon fruit yield and quality as a function of doses and times of biostimulant application

Research Society and Development ◽

10.33448/rsd-v9i7.3911 ◽

2020 ◽

Vol 9 (7) ◽

pp. e130973911

Author(s):

Roberto Cleiton Fernandes de Queiroga ◽

Zaqueu Lopes da Silva ◽

Odair Honorato Oliveira de ◽

Elidayane da Nóbrega Santos ◽

Higínio Luan Oliveira Silva ◽

...

Keyword(s):

Block Design ◽

Fruit Production ◽

Soluble Solids ◽

Application Time ◽

Time Of Application ◽

Yield And Quality ◽

Randomized Block Design ◽

Semi Arid Region ◽

Fruit Mass

The objective of this study was to evaluate the productivity and quality of melon fruits as a function of the dose and time of application of biostimulant in the conditions of the semi-arid region of Paraíba. The experiment was carried out at the Federal University of Campina Grande, campus of Pombal - PB, Brazil, in a randomized block design in a 4 x 5 split plot scheme, with doses of biostimulant (0; 0.5; 1.0; 1, 5 and 2.0 L ha-1) and in the subset of the biostimulant application times (15; 20; 25 and 30 days before harvest - DAC), in four replications. Characteristics related to fruit production and quality were evaluated. There was no interaction between the factors of dose and application time of the biostimulant in any of the evaluated characteristics. Thus, the highest estimated values of number of fruits per plant, fruit mass and total melon production were obtained with the application of doses ranging from 0.9 to 1.5 L ha-1 and at the time of application it varied from 22,5 to 23.6 DAC. The content of soluble solids increased 5.5% when the biostimulant dose of 2.0 L ha-1 was used and 4.4% when the product was applied 15 days before harvest.

Download Full-text

Pig slurry as a nutrient source in wheat/corn succession

Revista CERES ◽

10.1590/0034-737x201663030019 ◽

2016 ◽

Vol 63 (3) ◽

pp. 412-418 ◽

Cited By ~ 1

Author(s):

Claudir José Basso ◽

Marlo Adriano Bison Pinto ◽

Antônio Luis Santi ◽

Rodrigo Ferreira da Silva ◽

Diecson Ruy Orsolin da Silva

Keyword(s):

Grain Yield ◽

Block Design ◽

Pig Slurry ◽

Nutrient Source ◽

Mineral Fertilization ◽

Adequate Supply ◽

Randomized Block Design ◽

Efficient Alternative ◽

Crop Succession ◽

Npk Fertilization

ABSTRACT Wheat and corn are important grains in the agricultural scenario of Brazil, and demand adequate supply of nutrients, particularly nitrogen, in crop succession. The use of pig slurry (PS) as a full and/or partial alternative to mineral fertilization in crop areas has been identified as an important alternative for the disposal of this waste. Therefore, the objective of this study was to evaluate the utilization of PS as fertilizer in wheat/corn succession under some plant parameters and grain yield. The experiment was conducted under field in randomized block design with four replications and five treatments, three with PS (40, 80, 160 m³ ha-1) and two controls (no fertilization and mineral NPK fertilization), which were applied manually in the soil shortly after sowing the crops. The application of PS proved to be a significant source of nutrients in wheat/corn succession. In comparison to NPK fertilization, this increase was only of 5.4% and 4.7% for wheat and corn, respectively. PS is an efficient alternative and it can be used as a source of these nutrients in wheat/corn succession, and the use of 80 m3ha-1 provides satisfactory results for all evaluated variables.

Download Full-text

Initial growth of Schizolobium parahybae in Brazilian Cerrado soil under liming and mineral fertilization

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v20n10p908-912 ◽

2016 ◽

Vol 20 (10) ◽

pp. 908-912 ◽

Cited By ~ 3

Author(s):

Ademilson Coneglian ◽

Pedro H. P. Ribeiro ◽

Bruno S. Melo ◽

Rennan F. Pereira ◽

Joáz Dorneles Junior

Keyword(s):

Block Design ◽

Market Potential ◽

Initial Growth ◽

Brazilian Cerrado ◽

Mineral Fertilization ◽

Randomized Block Design ◽

Root Shoot Ratio ◽

Soil Liming ◽

Number Of Leaves ◽

Soil Fertilizer

ABSTRACT High prices and the scarcity of hardwoods require the use of alternative wood sources, such as the Guapuruvu (Schizolobium parahybae), an arboreal species native to the Atlantic Forest, which has fast growth and high market potential. However, there is no information on its cultivation in the Brazilian Cerrado. Thus, this study aimed to analyze the contribution of mineral fertilization and liming in a Cerrado soil on the initial growth of Schizolobium parahybae. The experiment was set in a randomized block design, with 4 treatments (Cerrado soil; soil + liming; soil + fertilizer; and soil + fertilizer + liming) and 15 replicates. The following variables were analyzed: plant height, stem diameter, number of leaves, total, shoot, leaf, root and stem dry matter, and root/shoot ratio. The obtained data were subjected to the analysis of variance, Tukey test and regression analysis. During the initial growth, Schizolobium parahybae can be cultivated in a Brazilian Cerrado soil only under mineral fertilization, with no need for soil liming.

Download Full-text

Production and quality of okra produced with mineral and organic fertilization

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v23n2p97-102 ◽

2019 ◽

Vol 23 (2) ◽

pp. 97-102

Author(s):

Hemmannuella C. Santos ◽

Emmanuel M. Pereira ◽

Rafael L. S. de Medeiros ◽

Paulo M. de A. Costa ◽

Walter E. Pereira

Keyword(s):

Vitamin C ◽

Block Design ◽

Titratable Acidity ◽

Soluble Solids ◽

Organic Fertilization ◽

Randomized Block Design ◽

Number Of Leaves ◽

The Mean ◽

Organic Compost

ABSTRACT Okra, Abelmoschus esculentus (L.) Moench, is a vegetable with annual fruit native to hot regions of Africa, well adapted to the conditions of the Northeast and Southeast regions of Brazil, where it is widely used by small farmers. This study aimed to evaluate the effect of mineral and organic fertilization on the production and quality of okra fruits. The experiment was conducted in randomized block design, with three replicates and eleven treatments defined according to a Baconian matrix. Treatments consisted of doses of N (0, 100, 200 and 300 kg ha-1), P (0, 100, 200 and 300 kg ha-1) and K (0, 80, 160 and 240 kg ha-1), as well as absence and presence of organic compost (30 t ha-1). The following parameters were evaluated: plant height, stem diameter, number of leaves, production of fruits plant-1, number of fruits plant-1, fruit length and diameter and fruit quality (pH, soluble solids, titratable acidity, vitamin C and electrical conductivity). The crop is demanding in terms of K and N fertilizations, with increments of 15.8 and 36% in the mean number and diameter of fruits, respectively. Organic fertilization did not influence the vegetative growth of okra, but was beneficial to the production of fruits with higher vitamin C content, 52% higher than the contents found in fruits produced without such input.

Download Full-text

Effects of weed management and plant arrangements on yield index of sweet sorghum

Bioscience Journal ◽

10.14393/bj-v35n4a2019-36966 ◽

2019 ◽

Vol 35 (4) ◽

Author(s):

Ronaldo Matias Reis ◽

Matheus Souza Freitas ◽

Daniel Valadão Silva ◽

Gustavo Antônio Mendes Pereira ◽

Ana Beatriz Rocha de Jesus Passos ◽

...

Keyword(s):

Weed Control ◽

Weed Management ◽

Sweet Sorghum ◽

Control Method ◽

Block Design ◽

Stem Diameter ◽

Soluble Solids ◽

Fresh Matter ◽

Randomized Block Design ◽

And Control

Sweet sorghum is currently an important alternative for ethanol production in sugar cane off-season. In this study was to evaluate the effects of plant arrangements and the application of atrazine and S-metolachlor on growth and productivity of sweet sorghum. An experiment was conducted in randomized block design and, arranged in split plots with four repetitions. Plots consisted of spacing (0.25 m, 0.45 m 0.45-0.45-0.90 m) and sub-plots of weed control methods - atrazine (2000 g ha-1), atrazine + S-metolachlor (2000 + 720 g ha-1), atrazine + S-metolachlor (2000 + 960 g ha-1), atrazine + S-metolachlor (2000 + 1200 g ha-1), atrazine + S-metolachlor (2000 + 1440 g ha-1). Besides that, manual hoeing control was added. The intoxication of sorghum plants and weed control was evaluated at 7, 14 e 28 days after herbicides application (DAA). Plant height, stem diameter, total fresh matter, juice mass and total soluble solids (°Brix) were evaluated at 120 days after crop emergence (DAE). There was no interaction between the factors spacings and control method for variables total matter fresh (TMF), height (H), stem diameter (D), juice mass (JM), and Brix. Application of the mixture (atrazine + S-metolachlor) in the highest doses reduced total fresh matter and °Brix. The spacing of 0.25 m provided the highest productivity of fresh matter, juice mass and increased the °Brix. The application of mixture (atrazine + S-metolachlor) controlled 90% of the weeds at 28 days after application. The increasing in doses of S-metolachlor elevates the intoxication in sorghum plants. The mixture (atrazine + S-metolachlor) has a potential for use in weed control in sweet sorghum, but at doses below 960 g ha-1 of S-metolachlor. metolachlor.

Download Full-text