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Enhanced-efficiency fertilizers in nitrous oxide emissions from urea applied to sugarcane. Abstract: The environmental benefits of producing biofuels from sugarcane have been questioned due to greenhouse gas emissions during the biomass production stage, especially nitrous oxide (N2O) assoc... ... Repositório: BDPA Ano de publicação: 2015
Nutrient use efficiency in agricultural systems: a brazilian perspective. Most Brazilian soils are deep, highly weathered, acidic, and of low natural fertility. Many strategies have been developed for building soil fertility using lime and mineral fertilizers, particularly... ... Repositório: BDPA Ano de publicação: 2024
Residual effect of nitrogen fertilizers formulated with biochar. Abstract: Biochar-based nitrogen fertilizers provide productivity and efficiency of nitrogen use gains, but knowledge is scarce about the residual effect for subsequent crops. We evaluated the residua... ... Repositório: BDPA Ano de publicação: 2019
Clay minerals in the topics: improving nitrogen fertilizer efficiency. Tropical soils require liming and a balanced nutrient supply to ensure high crop yield and quality. An adequate agronomic nutrient management involves balanced nutrition and fertilizers are the key fa... ... Repositório: BDPA Ano de publicação: 2015
Effects of soil bioactivation and fertilizer on common bean grain yield in Brazil. The objective of the study was to determine the common bean performance, grain yield and yield components of common bean as affected by bioactivation and different dosis of inorganic phosphorus. Repositório: BDPA Ano de publicação: 2021
Scale of operation, allocative inefficiencies and separability of inputs and outputs in agricultural research: Embrapa case study. In this article we consider some properties of concern for research production at Embrapa. We address questions related to statistical tests for the scale of operation, the presence of allocative inef... ... Repositório: BDPA Ano de publicação: 2011
Soil phosphorus and corn development under application of phosphate sources. Knowledge of the solubility of phosphate fertilizers is fundamental for phosphorus (P) recommendation management and for choosing the laboratory evaluation method of nutrient availability in the soil... ... Repositório: BDPA Ano de publicação: 2021
Relationship between feed efficiency indexes and performance, body measurements, digestibility, energy partitioning, and nitrogen partitioning in pre-weaning dairy heifers. The objectives of this study were: 1) to classify animals into groups of high and low feed efficiency using two feed efficiency indexes (Residual feed intake (RFI) and residual feed intake and body we... ... Repositório: BDPA Ano de publicação: 2019
Growth performance in Crossbred (Holstein x Gyr) calves differing in phenotypic residual feed intake on pre-weaned period. Repositório: BDPA Ano de publicação: 2015
Potential improvement of agricultural output for major producers based on DEA efficiency measurements. In this article we perform production efficiency analysis for the 40 countries with largest value added by agricultural sector in 2005. Under the assumption of a nonparametric frontier and production... ... Repositório: BDPA Ano de publicação: 2011

Mostrando 1 - 10 de 380 resultados.

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