Los sistemas de manejo alteran la calidad de los suelos, debido a la influencia de la cantidad y calidad de la materia orgánica del suelo, las cuales pueden afectar la agregación del suelo. El objetivo del presente trabajo fue evaluar el C orgánico del suelo, fracciones húmicas y la estabilidad de agregados del suelo en diferentes sistemas de manejo, siendo a las vez correlacionados. Los sistemas de manejo del suelo fueron: pasto (Brachiaria brizantha), sistema convencional (PC) y dos sistemas en siembra directa (SSD), uno con monocultivo de maíz (SDMM) y otro con rotación soya/maíz (SDSM), utilizando como referencia a un suelo de bosque. El área de estudio se localizo en Jaboticabal, São Paulo/Brasil, de un suelo oxisols. Muestras de suelo fueron colectadas a una profundidad de 0-0,10 cm, siendo analizadas el diámetro medio ponderado (DMP), índice de estabilidad (IEA) de los ...

The knowledge of the characteristics and physical properties of the soils in function of their management, is fundamental in the development of the cultivation of sugarcane (Saccharum officinarum L.), whose purpose was to evaluate the effect of management systems on physical attributes and matter. organic (MO) of two oxisols (Rhodic Hapludox (Rh) and Anionic Acrudox (Aa)) and sugarcane production in the municipality of Jaboticabal, São Paulo state, Brazil, on the other hand the complete block design was used randomly with four treatments and five repetitions, the treatments were: soybean / milheto / soybean (SMS), soybean / crotalaria / soybean (SCS), soybean / rest / soybean (SDS) and soybean (S). The aggregate stability index (IEA), weighted average diameter (DMP), soil density (DS), total porosity (PT), macro porosity (Ma), micro porosity (Mi), penetration resistance (RP) were measur...

The knowledge of the characteristics and physical properties of the soils in function of their management, is fundamental in the development of the cultivation of sugarcane (Saccharum officinarum L.), whose purpose was to evaluate the effect of management systems on physical attributes and matter. organic (MO) of two oxisols (Rhodic Hapludox (Rh) and Anionic Acrudox (Aa)) and sugarcane production in the municipality of Jaboticabal, São Paulo state, Brazil, on the other hand the complete block design was used randomly with four treatments and five repetitions, the treatments were: soybean / milheto / soybean (SMS), soybean / crotalaria / soybean (SCS), soybean / rest / soybean (SDS) and soybean (S). The aggregate stability index (IEA), weighted average diameter (DMP), soil density (DS), total porosity (PT), macro porosity (Ma), micro porosity (Mi), penetration resistance (RP) were measur...

The knowledge of the characteristics and physical properties of the soils in function of their management, is fundamental in the development of the cultivation of sugarcane (Saccharum officinarum L.), whose purpose was to evaluate the effect of management systems on physical attributes and matter. organic (MO) of two oxisols (Rhodic Hapludox (Rh) and Anionic Acrudox (Aa)) and sugarcane production in the municipality of Jaboticabal, São Paulo state, Brazil, on the other hand the complete block design was used randomly with four treatments and five repetitions, the treatments were: soybean / milheto / soybean (SMS), soybean / crotalaria / soybean (SCS), soybean / rest / soybean (SDS) and soybean (S). The aggregate stability index (IEA), weighted average diameter (DMP), soil density (DS), total porosity (PT), macro porosity (Ma), micro porosity (Mi), penetration resistance (RP) were measur...

The knowledge of the characteristics and physical properties of the soils in function of their management, is fundamental in the development of the cultivation of sugarcane (Saccharum officinarum L.), whose purpose was to evaluate the effect of management systems on physical attributes and matter. organic (MO) of two oxisols (Rhodic Hapludox (Rh) and Anionic Acrudox (Aa)) and sugarcane production in the municipality of Jaboticabal, São Paulo state, Brazil, on the other hand the complete block design was used randomly with four treatments and five repetitions, the treatments were: soybean / milheto / soybean (SMS), soybean / crotalaria / soybean (SCS), soybean / rest / soybean (SDS) and soybean (S). The aggregate stability index (IEA), weighted average diameter (DMP), soil density (DS), total porosity (PT), macro porosity (Ma), micro porosity (Mi), penetration resistance (RP) were measur...

The organic management of Theobroma cacao in agroforestry systems is a viable alternative, which is being applied in the Alborada Estate under the name of Mendis Organic Management (MOM) in honor of the researcher and owner of the experimental area. The MOM technology integrates a set of techniques according to the physiological cycle of the plant such as drastic annual pruning, application of compost, foliar biofertilizer, and the use of a variety of cocoa with high planting density. Therefore, the research evaluated the effect of MOM management on soil quality with cocoa plantations (varieties CCN-51 and CMP-15), under agroforestry system developed in the Alborada farm, Leoncio Prado province, Huanuco, Peru. A completely randomized design (CRD) was carried out, the treatments were cocoa areas: CCN-51 of 2x2 m and 10 years of installation (MOM1), CMP-15 of 2x2 m and 4 years (MOM2), CMP-...

Identifying the carbon isotopic ratio is valuable for analyzing and understanding soil classification and dynamics. This study evaluated and related the soil isotopic ratio and its main properties (physicochemical) in the Monzón Valley. Fifteen pits were sampled within the strata of a toposequence. δ13C was determined using an isotope ratio mass spectrometry system coupled with an EA-IRMS elemental analyzer. To obtain accurate results, samples were categorized based on their depth. Between 500 and 600 µg of soil were weighed for samples <40 cm deep, and between 1500 and 2000 µg for samples deeper than 40 cm. The results provided information on the stable carbon content of the soil, separating each sample by its soil profile, depth, pH, color, Al, cultivar, carbon stock, taxonomic classification, among others. Differences in properties were found among the profiles studied, with qu...