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All publications of “André Cesar Vitti”

8 results

Phosphate Sources and Filter Cake Amendment Affecting Sugarcane Yield and Soil Phosphorus Fractions

Amin Soltangheisi ORCID logo , Valdevan Rosendo dos Santos ORCID logo , Henrique Coutinho Junqueira Franco ORCID logo , Oriel Kolln ORCID logo , André Cesar Vitti ORCID logo , Carlos Tadeu dos Santos Dias ORCID logo , [...]

22/May/2019

ABSTRACT: The use of mineral phosphate fertilizers associated with organic residues can improve fertilizer use efficiency and consequently decrease their usage costs. Soil application of filter cake (FC) can provide nutrients and enhance physical quality. This study aimed to evaluate the effects of different phosphate fertilizers [rock phosphate (RP) and triple superphosphate (TSP)] applied at different rates (90 and 180 kg ha-1 P2O5) associated with filter cake (10 Mg ha-1 dry matter) on the soil phosphorus (P) fractions after two […]

Compared performance of penetrometers and effect of soil water content on penetration resistance measurements

Edison Aparecido Mome Filho, Alvaro Pires da Silva, Getulio Coutinho Figueiredo, Fernando Henrique Setti Gimenes, André Cesar Vitti

01/Jun/2014

Modern agriculture techniques have a great impact on crops and soil quality, especially by the increased machinery traffic and weight. Several devices have been developed for determining soil properties in the field, aimed at managing compacted areas. Penetrometry is a widely used technique; however, there are several types of penetrometers, which have different action modes that can affect the soil resistance measurement. The objective of this study was to compare the functionality of two penetrometry methods (manual and automated mode) […]

Nutritional status of sugar cane (planted cane) in 15N experiments

Carlos Eduardo Faroni, Paulo Cesar Ocheuze Trivelin, Henrique Coutinho Junqueira Franco, André Cesar Vitti, Rafael Otto, Heitor Cantarella

01/Dec/2009

Studies with stable isotopes are becoming more common due to the increased safety of operation and quality and reliability of results. However, the use of microplots is required to decrease the costs of such studies. Since microplots are small compared to regular plot areas, the purpose of this study was to investigate whether nutritional data based on microplot samples can adequately represent the whole area, in a comparison of the nutritional status of microplot sugar cane plants at their maximum […]

Utilization of Boron (10B) derived from fertilizer by sugar cane

Henrique Coutinho Junqueira Franco, Paulo Cesar Ocheuze Trivelin, André César Vitti, Rafael Otto, Carlos Eduardo Faroni, João Gabriel Tovajar

01/Dec/2009

The response to B in agricultural systems of sugar cane is still an unexplored issue; B application has however recently been widely publicized and used with a certain degree of frequency. The use of 10B-labeled fertilizers may further contribute to clarify this practice. With the objective of evaluating sugar cane use of B (10B) derived from fertilizer (boric acid), an experiment was conducted under field conditions in the 2005/2006 growing season. The experiment consisted of the installation of microplots (2 […]

Root system distribution of sugar cane as related to nitrogen fertilization, evaluated by two methods: monolith and probes

Rafael Otto, Paulo Cesar Ocheuze Trivelin, Henrique Coutinho Junqueira Franco, Carlos Eduardo Faroni, André Cesar Vitti

01/Jun/2009

Few studies on sugar cane have evaluated the root system of the crop, in spite of its importance. This is mainly due to the difficulty of evaluation and high variability of results. The objective of this study was to develop an evaluation method of the cane root system by means of probes so as to evaluate the mass, distribution and metabolically active roots related to N fertilization at planting. For this purpose, an experiment was conducted in an Arenic Kandiustults […]

Straw mineralization and root growth of sugar cane as related to nitrogen fertilization at planting

André Cesar Vitti, Paulo Cesar Ocheuze Trivelin, Heitor Cantarella, Henrique Coutinho Junqueira Franco, Carlos Eduardo Faroni, Rafael Otto, [...]

01/Dec/2008

The experiment was conducted with the sugar cane variety SP81 3250, in a commercial area of the sugar mill São Martinho (Pradópolis-SP), on a clay-texture Rhodic eutrustox. The experimental had a randomized block design with four replications. Bags containing straw enriched with 15N (1.07 % 15N atoms) equivalent to 9 t ha-1 dry matter were placed on the soil surface between the sugar cane plant rows in all treatments (0, 40, 80 and 120 kg ha-1 of N). After 14 […]

Utilization by sugar cane of nitrogen applied at planting

Henrique Coutinho Junqueira Franco, Paulo Cesar Ocheuze Trivelin, Carlos Eduardo Faroni, André Cesar Vitti, Rafael Otto

01/Dec/2008

The 15N balance of N sources in the soil-plant system is of great value in studies of N transformation in different agroecosystems. In the sugarcane agroecosystem, the cane plant response to N fertilization for Brazilian conditions is not fully understood and the use of N fertilizer labeled with 15N can help clarify this issue. To evaluate the urea-N utilization by sugarcane at plant cane harvest, two experiments were developed with the variety SP81-3250, in commercial sugarcane fields. The experiments were […]

Sugar cane yield as related to the location of nitrogen fertilizer applied on top of unburnt sugar cane residues

André Cesar Vitti, Paulo Cesar Ocheuze Trivelin, Glauber José de Castro Gava, Henrique Coutinho Junqueira Franco, Isabela Rodrigues Bologna, Carlos Eduardo Faroni

01/Jun/2007

Knowledge about the proper management of not-burned sugar cane is still limited, particularly regarding nitrogen fertilization. A field experiment was carried out to evaluate sugar cane yield, the balance of 15N fertilizers in the soil-plant-residue system and ammonia loss by volatilization in sugarcane ratoon crop without straw burning prior to mechanical harvesting, comparing different locations of surface-applied nitrogen fertilizers. The sugar cane variety SP81-3250. Treatments were arranged in a complete randomized blocks, with four replicates. The treatments consisted of four […]