Revista Agrogeoambiental最新文献_第3页

Side dressing nitrogen fertilization in soybean in association with inoculation 大豆侧施氮肥与接种的关系

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Revista Agrogeoambiental Pub Date : 2023-04-10 DOI: 10.18406/2316-1817v15nunico20231745

Cassiano Spaziani Pereira, Ivan Vilela Andrade Fiorini, Felipe BENNEMANN PARIZZI, Helcio Duarte Pereira

{"title":"Side dressing nitrogen fertilization in soybean in association with inoculation","authors":"Cassiano Spaziani Pereira, Ivan Vilela Andrade Fiorini, Felipe BENNEMANN PARIZZI, Helcio Duarte Pereira","doi":"10.18406/2316-1817v15nunico20231745","DOIUrl":"https://doi.org/10.18406/2316-1817v15nunico20231745","url":null,"abstract":"The soybean is a crop that demands high levels of nitrogen (N) to express its productive potential. Supplemental fertilization with N can be a management strategy to increase the yield. This study aims to assess the effect of the N side dressing fertilization at the V4 stage of soybean, with and without inoculation, as well as its effects on the process of biological nitrogen fixation (BNF). The experimental design was randomized complete-block design with four replications in factorial scheme 2 × 5, where the seeds were either inoculated or not and received 5 doses of N: 0, 10, 20, 30, and 40 kg ha−1. Vegetative growth, nodulation, and yield components were evaluated. The stem diameter, plant height, and grain yield were not affected by inoculation, only by the N doses, with positive linear responses to the N supply. The leaf area responded positively to the seed inoculation and to the N supply. The node mass and viable node mass were not altered by seed inoculation or the supply of mineral N; and, until the dose of 40 kg ha−1, the node formation did not decrease. The number of pods per plant and the thousand-grain weight showed an interaction between inoculation and doses of N. The side dressing N fertilization at the V4 stage, until the dose of 40 kg ha−1, did not affect the vegetative growth and BNF, while it contributed to increase grain yield, even in the presence of inoculation. ","PeriodicalId":43096,"journal":{"name":"Revista Agrogeoambiental","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44304335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Growth, development and nitrogen nutrition of colored cotton cv. BRS Topázio under sustainably-constructed soil 彩棉的生长发育及氮素营养。可持续建设土壤下的BRS Topázio

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Revista Agrogeoambiental Pub Date : 2023-04-10 DOI: 10.18406/2316-1817v15nunico20231712

Magna Macedo Costa, Fabio Aquino de Albuquerque, José Aderaldo Trajano dos Santos

{"title":"Growth, development and nitrogen nutrition of colored cotton cv. BRS Topázio under sustainably-constructed soil","authors":"Magna Macedo Costa, Fabio Aquino de Albuquerque, José Aderaldo Trajano dos Santos","doi":"10.18406/2316-1817v15nunico20231712","DOIUrl":"https://doi.org/10.18406/2316-1817v15nunico20231712","url":null,"abstract":"Agroecological practices such as seed inoculation with diazotrophic bacteria and biofertilizers use have contributed to the development of sustainable agriculture. Therefore, this work aimed to study the effect of biofertilizers and the bacterium Azospirillum brasilense on the growth, development, and mineral nutrition of colored cotton cv. BRS Topázio. Thus, we conducted an experiment with the following treatments: 1) control; 2) inoculation of cotton seeds with nitrogen-fixing bacterium A. brasilense (Nfixed); 3) treatment of seeds with biofertilizer (Bio) + subsequent applications; 4) (Nfixed) + subsequent applications of Bio; and 5) mineral fertilization. The results showed that agroecological practices increase plant growth; the root:aerial ratio increases with conventional agricultural practices such as mineral fertilization, which also provides a lower reproductive mass:vegetative mass ratio of the aerial parts; plants fertilized with mineral sources concentrate more nitrogen (N), crude protein, magnesium (Mg), and sulfur (S) in their tissues; plants from seeds inoculated with A. brasilense accumulated more S when they received anaerobic biofertilizer compared with those that did not receive it; and agroecological practices improve soil fertility.","PeriodicalId":43096,"journal":{"name":"Revista Agrogeoambiental","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44319260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Initial development of maize plants grown with different combinations of nitrate and ammonium 硝酸盐和铵不同组合玉米植株的初步发育

IF 0.1

Revista Agrogeoambiental Pub Date : 2023-04-10 DOI: 10.18406/2316-1817v15nunico20231755

{"title":"Initial development of maize plants grown with different combinations of nitrate and ammonium","authors":"","doi":"10.18406/2316-1817v15nunico20231755","DOIUrl":"https://doi.org/10.18406/2316-1817v15nunico20231755","url":null,"abstract":"Corn is one of the main commodities of Brazilian agribusiness, due to its wide use, whether for human or animal consumption or in the chemical and biofuel industries. Thus, this work was carried out to evaluate the influence of different proportions of nitrate and ammonium in the initial development of corn plants. The experiment took place in a greenhouse, by direct sowing, where the seeds were placed at a depth of 1 cm in plastic pots with a capacity of 6 dm3 containing a mixture of previously sieved and washed with vermiculite, in a 2:1 ratio. Five proportions of nitrate and ammonium ions (NO3- :NH4+) were used: T1=100:0, T2=75:25, T3=50:50, T4=25:75 and T5=0:100, through nutrient solutions. After 35 days of cultivation, the following were evaluated: plant height, number of leaves, culm diameter, chlorophyll a, b, total and a/b ratio, root length, leaf fresh matter mass, dry matter mass of leaves, culm, roots, total dry mass, and root dry mass/shoot dry mass ratio, leaf area, specific leaf area, leaf area ratio, and leaf mass ratio. Nitrate as the only source of nitrogen provided a smaller increase in the chlorophyll a index of maize plants, which is the most important chlorophyll in the capture of light in the antenna complex. It is not recommended to cultivate corn plants with only nitrate or ammonium; however, it was observed that high doses of nitrate combined with low doses of ammonium in the culture medium provided satisfactory performance for most variables.","PeriodicalId":43096,"journal":{"name":"Revista Agrogeoambiental","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48477106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Growth, nutrition and health of coffee seedlings grown with increasing limestone doses in the substrate 增加基质中石灰石剂量对咖啡幼苗生长、营养和健康的影响

IF 0.1

Revista Agrogeoambiental Pub Date : 2023-04-10 DOI: 10.18406/2316-1817v15nunico20231729

Gabriela De Oliveira Santos Reis, Bruno Manoel Rezende de Melo, Sindynara Ferreira, Lilian Vilela Andrade Pinto

{"title":"Growth, nutrition and health of coffee seedlings grown with increasing limestone doses in the substrate","authors":"Gabriela De Oliveira Santos Reis, Bruno Manoel Rezende de Melo, Sindynara Ferreira, Lilian Vilela Andrade Pinto","doi":"10.18406/2316-1817v15nunico20231729","DOIUrl":"https://doi.org/10.18406/2316-1817v15nunico20231729","url":null,"abstract":"During coffee crop formation, seedlings quality is an essential factor to ensure the plants full development. Applying limestone to the substrate is a common practice to correct acidity, thus increasing nutrient availability. Therefore, we aimed to evaluate the effect of increasing limestone doses in the substrate regarding growth, nutrition, health, and quality of coffee seedlings. The experiment was conducted in the plant nursery at the IFSULDEMINAS – Inconfidentes Campus, with an experimental design in randomized blocks with five replications; the treatments received the following limestone doses per cubic meter of substrate: T1: 0 g; T2: 600 g; T3: 1,200 g; T4: 1,800 g; T5: 3,000 g. After 208 days of sowing, samples were collected for leaf analysis. The growth and quality of the seedlings and their incidence and severity of Cercospora were also evaluated. A statistical difference was found in leaf analysis for nitrogen, potassium, and manganese absorption, with no statistical difference for Cercospora coffeicola leaf spots in all treatments. Therefore, the increasing limestone doses do not influence growth, nutrition, and health of the coffee seedlings of the Mundo Novo 376/4 cultivar.","PeriodicalId":43096,"journal":{"name":"Revista Agrogeoambiental","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44521485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Deforestation patterns and stages of the Southern Amazon agricultural frontier 亚马逊南部农业边界的森林砍伐模式和阶段

IF 0.1

Revista Agrogeoambiental Pub Date : 2023-04-10 DOI: 10.18406/2316-1817v15nunico20231739

Joiada Moreira da Silva Linhares, Bruno Motta Monteiro, W. Bastos

{"title":"Deforestation patterns and stages of the Southern Amazon agricultural frontier","authors":"Joiada Moreira da Silva Linhares, Bruno Motta Monteiro, W. Bastos","doi":"10.18406/2316-1817v15nunico20231739","DOIUrl":"https://doi.org/10.18406/2316-1817v15nunico20231739","url":null,"abstract":"From 1980 to 2020, the Paciá River Drainage Basin (BHRP – Bacia Hidrográfica do Rio Paciá), located in the Southern Amazon agricultural frontier, underwent an accelerated process of change in human land use and occupation. This study aimed to identify and analyze deforestation patterns, relating them to landscape metrics and the stages of expansion of the agricultural frontier. The methodology was based on the following phases: 1) organizational structure of GIS (Geographic Information System) modeling; 2) mapping and classification of deforestation patterns; 3) mapping of the expansion stages of the agricultural frontier. Diffuse and geometric patterns represented 72.5% of the polygons analyzed, corresponding to 15.64% of deforestation. However, linear and consolidated patterns, which referred to 12.5% of the polygons, represented 65.5% of the deforested areas in the BHRP. The spatial arrangements of deforestation polygons are associated with two evolutionary stages of the Amazon agricultural frontier: permanent/consolidated, which is located along the Transamazon highway, and pioneer/diffuse, located along the banks of rural roads and the main course of the Paciá River.","PeriodicalId":43096,"journal":{"name":"Revista Agrogeoambiental","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44057972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of harvest yield and beverage quality of coffee under ethylene application 乙烯对咖啡产量及饮料品质的影响

IF 0.1

Revista Agrogeoambiental Pub Date : 2023-01-27 DOI: 10.18406/2316-1817v14n120221707

Caroline Martynelly Nogueira Gois, Sindynara Ferreira, José Laurício Gois, Marcelo Ribeiro Malta

{"title":"Evaluation of harvest yield and beverage quality of coffee under ethylene application","authors":"Caroline Martynelly Nogueira Gois, Sindynara Ferreira, José Laurício Gois, Marcelo Ribeiro Malta","doi":"10.18406/2316-1817v14n120221707","DOIUrl":"https://doi.org/10.18406/2316-1817v14n120221707","url":null,"abstract":"The coffee plant is characterized by the irregular ripening of its fruits. This uneven ripening often makes it impossible to optimize its harvest, since green fruits are more adhered to the plant than those in the ripe and overripe stages. In addition, it can influence the final product’s beverage quality. The use of ethylene is an alternative to optimize and increase the harvest yield of coffee, besides reducing expenditures on labor and post-harvest ground picking. This study was carried out to examine the harvest yield of coffee variety Mundo Novo IAC 379/19 under different ethylene rates as well as to analyze beverage quality in the different treatments. The experiment was laid out in a randomized-block design with four treatments (ethylene rates: 0, 300, 500, or 700 mL ha-1). The plots consisted of nine plants and three replications, but only the three central plants were evaluated. Results were analyzed by Tukey’s test at a significance level of 5%. The rates of 700 and 300 mL ha-1 provided the lowest amount of green fruits, whereas the percentage of ripe fruits was equivalent between treatments. The treatment with 700 mL ha-1 resulted in the highest percentage of fruits in the overripe stage, among the evaluated rates. Ethylene use did not increase harvest efficiency. Control treatment provided a significantly higher number of green fruits. Additionally, the use of ethylene-induced changes in the chemical composition of the bean and beverage quality.","PeriodicalId":43096,"journal":{"name":"Revista Agrogeoambiental","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43030326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nutritional diagnosis in a Conilon coffee plantation in the northern region of the Espírito Santo state 在Espírito Santo州北部地区Conilon咖啡种植园的营养诊断

IF 0.1

Revista Agrogeoambiental Pub Date : 2023-01-27 DOI: 10.18406/2316-1817v14n120221708

Ademir Fontana, Ivne Franco Pires, F. Partelli, Alex Campanharo, J. R. Rocha, Jéssica Dalazen Rodrigues

{"title":"Nutritional diagnosis in a Conilon coffee plantation in the northern region of the Espírito Santo state","authors":"Ademir Fontana, Ivne Franco Pires, F. Partelli, Alex Campanharo, J. R. Rocha, Jéssica Dalazen Rodrigues","doi":"10.18406/2316-1817v14n120221708","DOIUrl":"https://doi.org/10.18406/2316-1817v14n120221708","url":null,"abstract":"The soils of Coastal Tablelands are characterized by low natural fertility, which reinforces the importance of assessing soil fertility and leaf nutrition of crops. The objective of this study is to present a diagnosis of soil fertility and leaf nutrition of coffee plantations with Conilon from Coastal Tablelands in the northern area of the Espírito Santo state. A total of 49 soil samples were collected at a depth of 0-0.20 m and 49 leaf samples. In the soil, we can find Al3+, Ca2+, Mg2+, K+, (H+Al), SB, V, CTC, pH (water), P Mehlich-1, carbon (C), organic matter (MO), nitrogen (N), Cu2+, Fe2+, Mn2+, Zn2+, and in the leaves N, P, K, Ca, Mg, Cu, Fe, Mn and Zn contents. Soil fertility and leaf nutrition were diagnosed, followed by the identification of deficit elements after comparison with reference coffee crops. In the soil, most coffee plantations have low levels of MO, K, Ca, Mg, Fe, Al and (H+Al), P in excess, and the other attributes at medium levels. As for the leaves, most coffee plantations have low levels of N, P, K, Mg, Cu, Fe, and Zn, Mn at an adequate level and Ca at a high level. The soil and leaf elements evaluated are mostly at lower levels than the reference crops.","PeriodicalId":43096,"journal":{"name":"Revista Agrogeoambiental","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42344404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physical-hydric quality of a Regosol under integrated and conventional crop production systems 综合和常规作物生产系统下雷戈索尔的物理水分质量

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Revista Agrogeoambiental Pub Date : 2023-01-27 DOI: 10.18406/2316-1817v14n120221721

Nabor Galvão de Figueiredo Neto, P. A. D. Silva, F. P. D. Oliveira, A. F. Martins, Danillo Dutra Tavares, Milton C C Campos

{"title":"Physical-hydric quality of a Regosol under integrated and conventional crop production systems","authors":"Nabor Galvão de Figueiredo Neto, P. A. D. Silva, F. P. D. Oliveira, A. F. Martins, Danillo Dutra Tavares, Milton C C Campos","doi":"10.18406/2316-1817v14n120221721","DOIUrl":"https://doi.org/10.18406/2316-1817v14n120221721","url":null,"abstract":"Sandy soils have gained increased attention due to the expansion of new agricultural frontiers in Brazil and worldwide, however, they are sensitive to land use changes. The objective was to evaluate the physical-hydric quality of a Regosols under integrated and conventional production systems in the climatic conditions of the semiarid domain of Paraíba, Brazil. The study was carried out in the municipality of Lagoa Seca/PB, Brazil (7°10’15” S, 53°51’43” W, and 640 m of altitude), on a Regosols with a sandy loam textural classification. The experiment was set up in an entirely randomized design, with five treatments and five repetitions. The treatments were composed of: 1) Mombaça grass (Panicum maximum Jacq.) + Maize (Zea mays L.) (M+M); 2) Urochloa decumbens (Stapf) R. D. Webster + Maize (U+M); 3) secondary forest (SF); 4) conventional agriculture area, cultivated with bean (Phaseolus vulgaris L.) (AGR); and, 5) area in regeneration stage (ARS). The following variables were analyzed: flocculation degree, clay dispersed in water, soil porosity (total, macroporosity, microporosity), aeration porosity in the macro pore domain, soil bulk density, hydraulic conductivity, and available water. According to the results, the physical-hydric quality of the soil between the integrated systems was not significant, but compared to the conventional system, it showed satisfactory results. On the other hand, it is concluded that the modification of soil structure in an agricultural area has reduced water availability to plants to 75.20% below what is considered adequate. Long-term studies should be conducted in order to verify the effect of integration systems on improving the physical and structural quality of sandy soils.","PeriodicalId":43096,"journal":{"name":"Revista Agrogeoambiental","volume":"48 5","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41300678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Different sources of nitrogen in potato cultivation and the management of common scab 马铃薯栽培中氮的不同来源及常见赤霉病的防治

IF 0.1

Revista Agrogeoambiental Pub Date : 2023-01-27 DOI: 10.18406/2316-1817v14n120221682

Thiago Jose Da Silva Mira

{"title":"Different sources of nitrogen in potato cultivation and the management of common scab","authors":"Thiago Jose Da Silva Mira","doi":"10.18406/2316-1817v14n120221682","DOIUrl":"https://doi.org/10.18406/2316-1817v14n120221682","url":null,"abstract":" \u0000\u0000Potato (Solanum tuberosum L.) is native to South America and is the main vegetable grown in Brazil and worldwide. One of the diseases that can attack potato crops is the common scab, caused by the bacteria Streptomyces scabies, which affect roots and tubers. The objective of this research was to evaluate the effect of different sources of cultivation on potato crop in the management of common potato scab. The experimental design was in randomized blocks (DBC) containing five treatments urea (45% N), ammonium sulfate (20% N), protected urea (45% N), organomineral (0.75% N) and control (0% N). N) and four replications, in a total of 20 pots. The bacterium was removed from infected potato tubers and isolated in petri dishes containing YMA (Yeast, Manitol, Agar) culture medium. The bacterium was inoculated into the soil 15 times, seven days before planting. Seeds were distributed in pots with a capacity of 8 L, in a proportion of 2:1 (earth and sand), which were placed in a greenhouse. Fertilizing for planting and coverage was carried out according to the requirements of the crops: fertilization with urea and ammonium sulfate was carried out once at planting and twice at the top dressing; fertilizing with protected urea and organomineral was carried out once at planting and once at the top dressing; and nitrogen fertilization was not performed in the control treatment. The tubers were harvested 90 days after sowing. The variables analyzed were severity (graded) and incidence, counting the number of contaminated tubers, tuber weight yield of each plot, number of leaves, number of stems, and plant height. It was observed that the treatments with urea and ammonium sulfate had a lower percentage of common scab incidence, with an average incidence of 6.74% and 8.42%, respectively, followed by protected urea (8.90%). Urea and ammonium sulfate were efficient in reducing potato scab and increasing tuber production.\u0000","PeriodicalId":43096,"journal":{"name":"Revista Agrogeoambiental","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46111253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Permanent Preservation Areas Surrounding Springs Through Satellite Images 基于卫星图像的温泉周边永久保护区分析

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Revista Agrogeoambiental Pub Date : 2023-01-27 DOI: 10.18406/2316-1817v14n120221676

José Rafael Gonçalves Ribeiro, C. Lacerda, Paulo Borges, Débora P. Simões

引用次数: 0