Improving resource productivity at a crop sequence level
By Octavio P. Caviglia, R. Rizzalli, J. P. Monzon, F. García, R. Melchiori, J. J. Martínez, A. Cerrudo, A. Irigoyen, P. Barbieri, Fernando H. Andrade. Field crops research (Print), 2019
49 citations recorded by the source corpus.
Abstract The challenge to increase agricultural production with a minimum environmental impact requires to reach the maximum efficiency in the capture and use of resources such as photosynthetically active radiation (PAR), water, and nitrogen (N). Such requisites are encompassed in the ecological intensification (EI) concept. The aims of this work were to evaluate at a crop sequence level: i) crops yields, ii) water and radiation productivity and its components, i.e. resource capture and resource use efficiency, and iii) partial factor productivity of applied N (PFPN), partial nutrient balance for N (PNB), N uptake and N utilization efficiency of a two-year, three-crop sequence (wheat [Triticum aestivum L.]/soybean [Glycine max (L.) Merr.] double crop – maize [Zea mays L.]) carried-out under EI principles in comparison with the same crop sequence under current farmer practices (FP) in two contrasting locations of the Argentinean Pampas, i.e. Parana (-31°50′; -60°31′) at the northern Pampas and Balcarce (-37°45′, -58°18′) at the southern Pampas. Experiments were carried-out during four consecutive years, covering two complete cycles of the crop sequence. For the accumulated grain production of the crop sequence, EI management outyielded FP from 13 to 42%, depending on environmental conditions. Maize yield accounted for most of the variation (41–64%) of the accumulated grain yield of crop sequence, whether in EI as in FP. Average grain yield differences between EI and FP treatments were 274 g m−2 for maize, 69 g m−2 for wheat and -2 g m−2 for soybean. Water and radiation productivities of the sequence were higher in EI than in FP (26% for water and 17% for radiation; P
Subfields: Agronomy and Crop Science, Plant Science, Soil Science
View Paper: https://www.semanticscholar.org/paper/9b76e1ddbe546a5ec3a6db0598091bb9e40b6faa
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Soil Science
Citations in the corpus
- Nitrogen Fertilization. A Review of the Risks Associated with the Inefficiency of Its Use and Policy Responses (2021, background): “The NUE obtained from research plots is often lower than that from farm fields [132].”