Revista Caatinga最新文献_第5页

Hydrogen peroxide in the acclimation of colored-fiber cotton genotypes to salt stress 过氧化氢对有色纤维棉基因型盐胁迫适应性的影响

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n218rc

L. L. S. A. Veloso, C. A. V. de Azevedo, R. G. Nobre, G. S. de Lima, Idelvan J. da Silva, Cassiano N. de Lacerda

{"title":"Hydrogen peroxide in the acclimation of colored-fiber cotton genotypes to salt stress","authors":"L. L. S. A. Veloso, C. A. V. de Azevedo, R. G. Nobre, G. S. de Lima, Idelvan J. da Silva, Cassiano N. de Lacerda","doi":"10.1590/1983-21252023v36n218rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n218rc","url":null,"abstract":"ABSTRACT The excess of salts in irrigation water restricts agricultural exploitation in arid and semi-arid regions. Thus, searching for strategies of cultivation under salt stress conditions is important for the expansion of irrigated agriculture in these regions. Thus, the objective of this study was to evaluate the gas exchange and growth rates of naturally colored-fiber cotton genotypes irrigated with saline water and under exogenous foliar application of hydrogen peroxide concentrations. The experiment was carried out under greenhouse conditions, in Campina Grande - PB, using the randomized block experimental design and 4 × 3 × 2 factorial arrangement, with four concentrations of hydrogen peroxide - H2O2 (0, 25, 50, and 75 µM), three colored-fiber cotton genotypes - CG (BRS Rubi; BRS Topázio; BRS Verde) and two levels of electrical conductivity of water - ECw (0.8 and 5.3 dS m-1), with three replicates. Irrigation using water with electrical conductivity of 5.3 dS m-1 associated with foliar application of 50 µM of hydrogen peroxide favors gas exchange and growth rates of BRS Rubi cotton, at 60 days after sowing. Salinity of 5.3 dS m-1 associated with foliar applications of 50 µM of hydrogen peroxide increased the percentage of cell damage and the internal CO2 concentration, but reduced the stomatal conductance, transpiration, CO2 assimilation rate, and growth rates of BRS Topázio cotton.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45559586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Use of multifunctional microorganisms in corn crop 多功能微生物在玉米作物中的应用

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n212rc

D. R. C. Cruz, M. A. Silva, A. Nascente, M. D. de Filippi, E. P. B. Ferreira

{"title":"Use of multifunctional microorganisms in corn crop","authors":"D. R. C. Cruz, M. A. Silva, A. Nascente, M. D. de Filippi, E. P. B. Ferreira","doi":"10.1590/1983-21252023v36n212rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n212rc","url":null,"abstract":"ABSTRACT In the composition of the soil microbiome, there are numerous microorganisms capable of promoting plant growth, better known as plant growth-promoting microorganisms. The study aimed to determine the effects of multifunctional microorganisms, alone or in combination, on shoot, root, and total biomass production, gas exchange, macronutrient content, yield components, and grain yield of corn plants. The experiment was carried out in a greenhouse in a completely randomized design, with four replications. Twenty-six treatments consisted of isolated or combined microbiolization of corn seeds with the rhizobacteria Bacillus sp. (BRM 32109, BRM 32110, and BRM 63573), Burkholderia cepacea (BRM 32111), Pseudomonas sp. (BRM 32112), Serratia marcenses BRM 32113, Serratia sp. (BRM 32114), Azospirillum brasilense (Ab-V5), and Azospirillum sp. (BRM 63574), an isolated of fungus Trichoderma koningiopsis (BRM 53736), and a control treatment (without the application of microorganisms). At seven and 21 days, two more applications of the same treatments were carried out in the soil and the plants, respectively. The microorganisms applied alone or in combination promoted significant increases of 49% in corn plant biomass, 30% in gas exchange, 36% in macronutrient content, and 33% in grain yield. Isolates BRM 32114, Ab-V5, BRM 32110, and BRM 32112 and the combinations BRM 32114 + BRM 53736, BRM 63573 + Ab-V5, and BRM 32114 + BRM 32110 promoted better benefits to corn, allowing us to infer that the use of beneficial microorganisms significantly affects the development of corn plants.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44483541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effect of NPK fertilizer rates and growth regulator concentrations on sweet potato crop yield 氮磷钾肥用量和生长调节剂浓度对甘薯产量的影响

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n210rc

J. Martins Filho, R. N. T. Costa, Alan B. O. de Sousa, R. Gondim

{"title":"Effect of NPK fertilizer rates and growth regulator concentrations on sweet potato crop yield","authors":"J. Martins Filho, R. N. T. Costa, Alan B. O. de Sousa, R. Gondim","doi":"10.1590/1983-21252023v36n210rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n210rc","url":null,"abstract":"ABSTRACT The low mean yield of sweet potato crops in Brazil is related to several inadequate crop management practices. Considering the increasing production of this vegetable, the objective of this work was to evaluate the yield response of sweet potato crops subjected to different NPK fertilizer rates (NPK) combined with different growth regulator concentrations. The experiment was carried out in a randomized block design, with a 5×5 factorial arrangement consisted of 5 NPK fertilizer rates (0, 696, 1044, 1392, and 1740 kg ha-1) combined with 5 growth regulator concentrations (0, 20, 25, 30, and 35 mL L-1). Numbers of total and commercial roots per plant were affected by the factors tested, presenting a linear increase as the rates and concentrations were increased. The highest estimated sweet potato yield was 43 Mg ha -1, which was obtained using a NPK rate of 1522.64 kg ha-1 and a growth regulator concentration of 34.69 mL L-1. The higher NPK rates improved water use efficiency up to a maximum value of 8.1 kg m-3 with application of the NPK rate of 1740 kg ha-1. After determining a fixed yield level, the production factors tested act as imperfect substitutes in some intervals of variation of the inputs.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48631023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Does high onion plant density increase nitrogen demand? 洋葱植株密度高会增加对氮的需求吗?

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n215rc

S. M. Vidigal, Marialva A. Moreira, J. M. V. Paes, M. Pedrosa

{"title":"Does high onion plant density increase nitrogen demand?","authors":"S. M. Vidigal, Marialva A. Moreira, J. M. V. Paes, M. Pedrosa","doi":"10.1590/1983-21252023v36n215rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n215rc","url":null,"abstract":"ABSTRACT An adequate N supply is essential for plant growth, and changing plant density increases nitrogen demand. The objective of this work was to evaluate the effect of top-dressing nitrogen fertilization on quality and yield of onions grown under three plant densities. The experiment was conducted from June to October, in Oratórios, state of Minas Gerais, Brazil, using the hybrid Superex. A randomized block experimental design was used, with a split-plot arrangement and four replications. N rates (0, 60, 120, and 240 kg ha-1) were evaluated in the plots and plant densities (40 plants m-2 - one seedling per cell; 80 plants m-2 - two seedlings per cell; and 120 plants m-2 - three seedlings per cell) were evaluated in the subplots. The yield found for the treatment with 80 plants m-2 and 171 kg ha-1 of N was 51.28 Mg ha-1 of marketable bulbs, with approximately 75% class 3 and 17% class 4 bulbs. Bulb weight decreased with increasing plant density. Top-dressing nitrogen fertilization increases the quality and yield of onions, regardless of the plant density. The highest yield was found when using 80 plants m-2 and 240 kg ha-1 of N. A density of 80 plants m-2 (two seedlings per cell) and 171 kg ha-1 of N is recommended when intending to obtain class 3 and 4 bulbs.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46747944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Repellent activity of essential oils against mediterranean fly and their effects on postharvest quality in paluma guava 番石榴精油对地中海蝇的驱避作用及其对采后品质的影响

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n205rc

K. S. Gonzaga, C. H. DE BRITO, A. D. S. Salustino, M. I. de Souza, J. P. D. O. Santos, F. D. M. Sousa

{"title":"Repellent activity of essential oils against mediterranean fly and their effects on postharvest quality in paluma guava","authors":"K. S. Gonzaga, C. H. DE BRITO, A. D. S. Salustino, M. I. de Souza, J. P. D. O. Santos, F. D. M. Sousa","doi":"10.1590/1983-21252023v36n205rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n205rc","url":null,"abstract":"ABSTRACT Brazil is one of the world's largest guava (Psidium guajava) producing countries, but the economic performance of this crop can be negatively affected by the damage caused by Ceratitis capitata (Diptera: Tephritidae). The main methods for controlling C. capitata are based on broad-spectrum insecticide applications. However, the negative effects of using this control method stimulate the development of sustainable alternatives, such as the use of essential oils (EO). In this sense, the objective of the present study was to evaluate the repellent activity of EO of citronella (Cymbopogon nardus), clove (Syzygium aromaticum), and copaiba (Copaifera officinalis) for repellency of C. capitata in Paluma guava fruits and determine their effects on postharvest fruit quality, under laboratory-controlled conditions. The fruits were treated with citronella, clove, and copaiba EO and placed in covered plastic containers attached to the ends of arenas of 20 cm diameter and 15 cm height. The fruit physical and chemical analysis was carried out based on the same oils applied in the repellent test. The C. nardus essential oil presented a greater repellency of C. capitata females. The EO applications proved to be a good strategy for maintaining the fruit post-harvest quality.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42351865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Technical and economic indicators of papaya crops for the production factors water and organic compost 木瓜作物的技术经济指标为生产要素水分和有机堆肥

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n216rc

Caio S. Pinto, R. N. T. Costa, Alan B. O. de Sousa, Antônio V. R. de Almeida, José W. O. Magalhães

{"title":"Technical and economic indicators of papaya crops for the production factors water and organic compost","authors":"Caio S. Pinto, R. N. T. Costa, Alan B. O. de Sousa, Antônio V. R. de Almeida, José W. O. Magalhães","doi":"10.1590/1983-21252023v36n216rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n216rc","url":null,"abstract":"ABSTRACT The objective of this study was to analyze technical and economic indicators of responses of papaya (Carica papaya L.) to the production factors water and organic compost, in a rural property with characteristic of family farming in the Semiarid region of Brazil. The study was conducted from August 2019 to July 2020, in the first crop cycle, in the municipality of Pentecoste, Ceara, Brazil. A Formosa papaya crop (cultivar Tainung 1) was established with spacing of 2.5 × 2.5 m, and irrigated by a micro-sprinkler localized system. A randomized block design was used, with a split-plot arrangement and four replications. The primary treatments consisted of four irrigation water depths (60%, 80%, 100%, and 120% of the crop evapotranspiration), and the secondary treatments consisted of four organic compost rates (0%, 50%, 100%, and 150% of the required rate for the crop). The irrigation water productivity of 5.38 R$ (BRL) m-3, related to the requirements of the production factors, on average, is five-fold the reference value for papaya crops under conventional production system. Rural credit allows the farmer to reach a social reproduction level with a papaya crop area that can be, on average, half of that needed under conditions without financing.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42160666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biological control of fungus gnats (Bradysia matogrossensis) in tobacco seedlings 烟草幼苗中真菌小昆虫（Bradysia matogrosensis）的生物防治

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n223rc

M. Mazzutti, R. Bisognin, Divanilde Guerra, R. Bohrer, D. M. Da Silva, E. L. De Souza

{"title":"Biological control of fungus gnats (Bradysia matogrossensis) in tobacco seedlings","authors":"M. Mazzutti, R. Bisognin, Divanilde Guerra, R. Bohrer, D. M. Da Silva, E. L. De Souza","doi":"10.1590/1983-21252023v36n223rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n223rc","url":null,"abstract":"ABSTRACT Tobacco production in Brazil is an essential source of income for many families, especially in the southern region. However, it is subject to attack by pests and diseases, such as the fungus gnats insect. To control this pest, the mite Stratiolaelaps scimitus is found in Brazilian soil, which has a predatory potential to fungus gnats. This study aimed to evaluate the use of S. scimitus as an insect control agent, compared to chemical control, in the production of tobacco seedlings in the floating system. The experiment was carried out on a farm in Crissiumal-RS, in a randomized block design, with four replications: T1= control, T2= chemical control based on Imidacloprid and Azadirachtin, and T3= S. scimitus. To analyze the control efficiency, adult insects were captured at different times, and the biological control did not differ from the chemical control. The biological treatment made it possible to reduce the use of chemical products. Concomitantly, questionnaires verified that producers are well accepting the new control model. Therefore, using S. scimitus could reduce the proliferation of fungus gnats in the production of tobacco seedlings in the floating system, but more studies need to be carried out for a better evaluation.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44171572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemical attributes of an ultisol cultivated with sugarcane after application of high doses of vinasse 施用高剂量醋液后甘蔗多溶胶的化学特性

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n217rc

M. S. Costa, M. M. Rolim, Gerônimo F. da Silva, J. A. Santos Júnior, E. M. Pedrosa

{"title":"Chemical attributes of an ultisol cultivated with sugarcane after application of high doses of vinasse","authors":"M. S. Costa, M. M. Rolim, Gerônimo F. da Silva, J. A. Santos Júnior, E. M. Pedrosa","doi":"10.1590/1983-21252023v36n217rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n217rc","url":null,"abstract":"ABSTRACT The use of high doses of vinasse in sugarcane crop can cause modifications in the chemical characteristics of the soil. The aim of this study was to evaluate the effect of the application of high doses of vinasse on the chemical characteristics of an Ultisol cultivated with sugarcane for 210 days. The treatments used were doses equivalent to 0 (D0), 150 (D150), 300 (D300), 600 (D600) and 1200 (D1200) m3 ha-1 of vinasse plus a control treatment with mineral fertilization. The experimental design was completely randomized with six treatments and six repetitions. Exchangeable potassium (K), calcium (Ca), magnesium (Mg) and sodium (Na) contents, organic matter, cation exchange capacity, sodium adsorption ratio, exchangeable sodium percentage, electrical conductivity and pH were analyzed at 90, 120, 150 and 210 days after planting (DAP), in addition to microbial basal respiration at 210 days at depths of 0-0.20 and 0.20-0.40 m. Soil pH increased with the use of vinasse within the proper range for sugarcane, varying from 6.2 to 6.4. The highest K and Na contents were found at D600 and D1200; the highest K and Na availability occurred at 120 DAP and 150 DAP, respectively, indicating competition between these nutrients for exchange sites. Organic matter content was proportionally high according to the vinasse dose applied. D600 and D1200 doses increased Na content in the soil, with greater magnitude at the 0-0.20 m depth.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46533370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Changes On Soil Microbiota Induced By The Use Of Commercial Products And The Incorporation Of Plant Materials 商品产品使用和植物材料掺入对土壤微生物群的影响

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n207rc

D. Borges, G. Nogueira, Gisellya de A. Cruz, S. G. A. Silva, W. D. da Silva, M. M. Q. Ambrósio

{"title":"Changes On Soil Microbiota Induced By The Use Of Commercial Products And The Incorporation Of Plant Materials","authors":"D. Borges, G. Nogueira, Gisellya de A. Cruz, S. G. A. Silva, W. D. da Silva, M. M. Q. Ambrósio","doi":"10.1590/1983-21252023v36n207rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n207rc","url":null,"abstract":"ABSTRACT Growers have adopted monoculture to maintain the high melon (Cucumis melo L.) production demand in the Northeastern region of Brazil. This cultivating practice culminates in up to three crop cycles per year being used in the same growing area. The main objective of this study was to evaluate if the incorporation of plant material used with polyethylene mulch and or in association with commercial soil amendment products can help to condition an environment that is beneficial to soil microbial communities. Two identical greenhouse experiments were conducted using a completely randomized design with seven treatments and seven replications. The treatments were: (C) – Control, (M) - polyethylene mulch, (C+M) - incorporation of Crotalaria juncea L. + polyethylene mulch, (P+M) - incorporation of Pennisetum glaucum L. + polyethylene mulch, (M+CS) - polyethylene mulch + (Compost-Aid® + Soil-Set®, trade names of products produced by Alltech Crop Science), (C+M+CS) - incorporation of C. juncea L. + polyethylene mulch + (Compost-Aid® + Soil-Set®), and (P+M+CS) - incorporation of P. glaucum L. + polyethylene mulch + (Compost-Aid® + Soil-Set®). To quantify the target soil microbiota (fungi, bacteria, sporulating bacteria, and actinomycetes), isolations were attempted on selective culture media specific for each group of microorganisms. The incorporation of P. glaucum together with the use of polyethylene mulch and commercial products (Compost-Aid® and Soil-Set®), (P+M+CS), increased the total fungal population by 183%, total bacteria by 55%, sporulating bacteria by 21%, and actinomycetes by 146% in relation to the control treatment.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45702738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Soil quality index of an ultisol under long-term plots in the coastal tablelands in northeastern Brazil 巴西东北部沿海高原长期地块土壤质量指数

IF 0.9 4区农林科学

Revista Caatinga Pub Date : 2023-06-01 DOI: 10.1590/1983-21252023v36n220rc

S. Assunção, A. Pedrotti, M. I. S. Gonzaga, J. C. A. Nóbrega, F. Holanda

{"title":"Soil quality index of an ultisol under long-term plots in the coastal tablelands in northeastern Brazil","authors":"S. Assunção, A. Pedrotti, M. I. S. Gonzaga, J. C. A. Nóbrega, F. Holanda","doi":"10.1590/1983-21252023v36n220rc","DOIUrl":"https://doi.org/10.1590/1983-21252023v36n220rc","url":null,"abstract":"ABSTRACT Soil quality, measured through its chemical, physical and microbiological attributes, changes as a result of anthropic sensations and becomes an important tool to assess environmental quality. The objective of this study was to determine and evaluate the Quality Index of an Ultisol in a long-term (17-yr) plots under different management systems in the Coastal Tablelands of Sergipe State, in Northeastern, Brazil. Main effects were conventional tillage (CT), no-tillage (NT), and minimum tillage (MT) distributed cultivated strips with corn as the main crop. Split-range treatments were randomly distributed and cultivated with cowpea beans (Vigna unguiculata), sunn hemp (Crotalaria juncea), pigeon pea (Cajanus cajan), and millet (Pennisetum glaucum). A forest soil was used as reference, compared to the soil samples of the cultivated area. The Soil Quality Index (SQI) for the 0-0.10 m layer was calculated by the additive method. There were changes in soil properties between the different management systems, and between the experimental soil and the reference area. The highest SQI was obtained from the forest area (67.1) followed by the NT treatment (65.5), MT (65.1) and CT treatment (61.0). The lowest SQI was observed in the CT treatment previously cultivated with pigeon pea (56.5). Among the evaluated soil functions, maintenance of homeostasis had the greatest influence on the SQI. The higher acidity of the forest soil helps to explain the origin of the limitations of the soil in the cultivated area that occupies the same type of soil, tolerated by the adoption of conservationist managements.","PeriodicalId":21558,"journal":{"name":"Revista Caatinga","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48633411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0