1. Nutritional diagnosis of ‘Montenegrina’ mandarin orchards at the southern Brazil

ABSTRACT The correct nutrition of orchards from fertilizer management directly influences fruit yield. Therefore, the objective was to evaluate the nutritional status of orchards of the ‘Montenegrina’ mandarin (Citrus deliciosa Tenore) grafted on Poncirus trifoliata Raf. in southern Brazil. The study included analyzes of soil and leaf tissue from 58 comm

Revista Ceres. Publicado em: 2023

2. Grazing management under integrated crop-livestock system on physical soil attributes and grain yield soybean

ABSTRACT Integrated crop-livestock system (ICLS) can help improve the soil physical attributes, increasing the nutrients cycling and yield potential. We evaluated the effect of forage height management under ICLS on physical soil attributes and water infiltration. Field experiment was carried out for two consecutive years in a randomized complete block desig

Revista Ceres. Publicado em: 2023

3. Phonolite associated with organic compound and potassium solubilizing bacteria in tomato cultivation

ABSTRACT The use of rock dust in Brazil has been studied and encouraged to reduce the Brazilian dependence on the foreign market for chemical fertilizers and as an alternative to organic agriculture. The objective of this research was to evaluate the effects of using phonolite rock powder and organic compound, associated with inoculation with the potassium s

Revista Ceres. Publicado em: 2023

4. Sensitivity analysis of the AquaCrop model for wheat crop in Campos Gerais region, Paraná

ABSTRACT The use of crop modeling can be useful to understand the interactions between the soil-plant-atmosphere system. The objective of this study was to evaluate sensitivity analysis of the AquaCrop model parameters for wheat crop in the Campos Gerais Region. The varietie tested was TBIO Sinuelo in Castro, Ponta Grossa and Itaberá cities. The analyzed pa

Revista Ceres. Publicado em: 2023

5. Least limiting water range in Oxisol under two conservation tillage systems in sugarcane farming

ABSTRACT The Least Limiting Water Range (LLWR) is an indicator of soil physical quality, contributing in information to propose soil management systems in agricultural farming process. This work aimed to assess the usage of LLWR and critical soil bulk density for physical-water quality evaluations, as well as its effect on sugarcane farming under no-tillage

Revista Ceres. Publicado em: 2022

6. CORRELATION OF SOIL PHYSICAL ATTRIBUTES WITH FURROWING SHANK STRENGTH AND DEPTH IN A NO-TILL SEEDER

ABSTRACT Furrowing shank horizontal strength and working depth can be correlated with soil compaction in a no-till sowing. This study aimed to evaluate the correlation of furrowing shank strength and working depth with soil physical properties at two working speeds (1.58 and 1.87 m s-1) and four compaction levels induced by an agricultural tractor (0P, 1P, 3

Engenharia Agrícola. Publicado em: 2022

7. Gas exchange and water stress index in soybean cultivated under water deficit and soil compaction

ABSTRACT Water stress is intrinsically related to soil water availability which is determinant in gas exchanges, as well as soil compaction in soybean growth and development. This study aimed to evaluate the leaf gas exchange, water stress index, and dry mass accumulation of soybean cultivated in different daily irrigation depths and bulk density. The treatm

Revista Ceres. Publicado em: 2022

8. Direct onion sowing under soil tillage methods

ABSTRACT Onion production is conditioned to the adopted techniques during the cultivation. Sowing depth, soil preparation and cultivars are determinant factors for productivity to be increased. Two experiments were developed, the first with the objective of evaluating the effect of sowing depths and soil preparation methods on the germination and development

Revista Ceres. Publicado em: 2022

9. Study for the incorporation of wood ash in soil-cement brick

Abstract This study aimed to produce soil-cement brick with wood ash incorporation coming from the textile industry. The wood ash was a partial substitute for soil and cement in the manufacture of bricks. 7 formulations were made with different proportions of substitution: 10%, 20%, and 30%. It was noticed that the substitution of cement by wood ash in 10% r

Cerâmica. Publicado em: 2022

10. Management of rice straw in rice-soybean succession in tropical lowland

ABSTRACT This study aimed to analyze rice straw alternative managements to maximize the rice-soybean succession yield and to quantify their impacts on soil properties. The experiment was set up in a completely randomized design with six replicates. Nine rice straw managements were evaluated: straw burning (M1), straw harvesting (M2), straw incorporation with

Revista Ceres. Publicado em: 2022

11. Thermal characterization of soil-cement bricks using mining tailings

Abstract Soil-cement bricks are earth construction materials that have been gaining prominence due to their environmental advantages. The Brazilian Technical Standard NBR 8491 establishes physical and mechanical procedures to characterize these bricks. However, the thermal characterization is an important assessment, since it is related to the building’s t

REM - International Engineering Journal. Publicado em: 2022

12. Seed germination and substrates for seedlings cultivation of Melocactus zehntneri

RESUMO As populações de Melocactus zehntneri (chapéu-de-frade) têm apresentado um declínio alarmante devido à constante retirada de indivíduos de suas áreas naturais. A baixa porcentagem de germinação das sementes, somada à lentidão de crescimento, exige um sistema de propagação comercial da M. zehntneri. Este trabalho teve como objetivos testa

Horticultura Brasileira. Publicado em: 2022