Effectiveness of Current Fertilizer Recommendations for Irrigated Rice in Integrated Crop-Livestock Systems

Carmona, Felipe de Campos; Anghinoni, Ibanor; Mezzari, Célito Pescador; Martins, Amanda Posselt; Carvalho, Paulo César de Faccio

doi:10.1590/18069657rbcs20140798

Cited by 6 publications

(6 citation statements)

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“…Increased nutrient cycling and improved soil quality may reflect conditions more conducive to plant development (de Faccio Carvalho et al, 2010). In a study carried out on four different sites under ICLS in southern Brazil, yields of irrigated rice were increased and the response to fertilization decreased with the increase in the period of adoption of integrated systems between rice and beef cattle (Carmona et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…The results of this article demonstrate the importance of the adoption of integrated systems in the lowland subtropical environments of southern Brazil, which present in some situations recurrent problems due to high specialization of irrigated rice cultivation. Rice monoculture areas with lack of crop rotation and fallow in the fall/ winter period converge to reduce soil fertility levels and require high inputs of mineral fertilizers to obtain satisfactory yields of irrigated rice (Carmona et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…The use of pastures in the ICLS may also be important to improve nutrient availability through the nutrient cycling and the biological activity of the soils cultivated with irrigated rice in the southern Brazil, since there is low use of pastures in the winter season and (no-tillage) adoption (Sociedade Sul Brasileira de Arroz Irrigado [SOSBAI], 2018), considering that these lowland soils are more degraded than the upland soils, due to the greater history of conventional tillage. In addition, the majority of soils cultivated with irrigated rice in southern Brazil have low natural fertility (Streck et al, 2008), generally with low levels of soil organic matter (OM) (Boeni, Anghinoni, Genro Junior, & Osório Filho, 2010) reflecting in higher fertilization requirements to obtain satisfactory levels of grain yield (Carmona, Anghinoni, Mezzari, Martins, & de Faccio Carvalho, 2016). This means that the limited information about the impacts of these systems in rice environments limits the adoption of sustainable practices, especially involving irrigated rice fields (Martins et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Integrated crop–livestock systems in lowlands increase the availability of nutrients to irrigated rice

et al. 2020

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Integrated crop-livestock systems (ICLS) associated with crop rotation and soil conservation management cause numerous changes in nutrient fluxes and soil biochemical dynamics. In this sense, there is a gap in the impact of integrated production systems on nutrient dynamics and soil microbial activity in lowlands. In this context, this work had the objective of evaluating the nutrient availability and the activity of extracellular enzymes in a Gleyic Luvic Planosol under ICLS. The experiment has five paddy-farming systems with a range of crop diversity (both in time and space) and

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Integrated crop–livestock systems in lowlands increase the availability of nutrients to irrigated rice

et al. 2020

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“…Carmona, Anghinoni, Mezzari, Martins, and Carvalho (2016) found increases in yield and decreased rice response to fertilization under an integrated crop–livestock system (ICLS). The ICLS is based on rotation between grain crop under no‐tillage and livestock under pasture cultivation (Carvalho et al., 2014).…”

Section: Introductionmentioning

confidence: 99%

Integrated crop–livestock systems in paddy fields: New strategies for flooded rice nutrition

Denardin

Martins

Carmona³

et al. 2020

Agronomy Journal

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Integrated crop-livestock systems (ICLSs) appear as a good alternative to increase nutrient use efficiency (NUE) in rice (Oryza sativa L.) through the improvement in nutrient cycling and soil chemical attributes in paddy fields. The objective of this study was to evaluate the impact of an ICLS on soil chemical attributes and on the fertilization requirement of N, P, and K by flooded rice in the Brazilian subtropical region. Nutritional status, yield, and NUE of flooded rice were evaluated by fertilization trials through rice response to different fertilization rates of N, P, and K. Soil chemical attributes were evaluated at the beginning of the experiment and 30 mo later.Different fertilization rates were applied in two systems: (a) a conventional system (CS), based on intensive tillage, rice monocropping and winter fallow, and (b) ICLS, characterized by no-tillage and winter cattle grazing in annual ryegrass (Lolium multiflorum Lam.) pasture. Rice shoot accumulation of N, P, and K was greater under CS than ICLS at all fertilization levels. On the other hand, higher rice yields were observed under ICLS at almost every fertilization level, suggesting higher NUE than CS. In addition, rice yield was increased by 40% by fertilization of P and K under CS, whereas no response was observed under ICLS. These benefits were possibly related to greater nutrient cycling and greater synchronism between rice's nutrient uptake and nutrient release of the soil. Our results indicate that the adoption of ICLS ensures greater NUE becoming a system less dependent on external inputs.Abbreviations: CEC, cation exchange capacity; CS, conventional system; ICLS, integrated crop-livestock system; NUE, nutrient use efficiency; SOM, soil organic matter.

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“…Farmers in south-Brazilian lowlands have encountered difficulties with the irrigated rice production system, like for instance yield limitations and high costs associated to poor soil fertility Carmona et al, 2016) and herbicide resistant weeds , which are spread out in many fields. Crop diversification is one of the keys to overcome such technical difficulties.…”

Section: General Aspectsmentioning

confidence: 99%

A comprehensive assessment of agriculture in lowlands of south Brazil: characterization and comparison of current and alternative concepts

Theisen¹

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Agriculture in the lowlands of south Brazil is of strategic importance at the national level, since it supplies around 80% of the rice consumed by the Brazilian population. In Rio Grande do Sul, the southernmost state in Brazil, three million hectares of lowlands are ready for grain-based agriculture. Of this area, about half is fallow, partly used for cattle grazing, and irrigated rice is the predominant crop, cultivated annually on 1.1 million ha. The remaining area is used for soybean and other crops. The predominant cropping system is a combination of irrigated rice and cattle. Over the last decades, rice yields have steadily increased, but this rise in yield level has to a large extent been obtained at the expense of a continuously higher use of external inputs. The recent introduction of soybean in rotation with rice has partially improved the system, but in most areas the situation is becoming incompatible with the modern demands for sustainability. This thesis presents a long-term study (2006-2015) of five cropping systems for lowlands. Next to monocrop rice and two rice-soybean rotations conducted in either conventional or minimum tillage, the experiment contained two novel systems based on large ridges, on which soybean and maize were combined with either cover crops or crop-livestock integration in winter. In these last systems, 8-m-wide ridges were built to avoid flooding, thus allowing for diversification of cash crops and the cultivation of cover crops or pastures in winter time, as well as the use of no-tillage. All systems were evaluated at process-level, including soil preparation, seeding, plant nutrition, pest management, irrigation, harvesting, transport and cattle management, as well as regarding their performance for the different dimensions of sustainability, particularly environment, land productivity, economics, energy-use and labour. Next to system assessment, two additional experiments were conducted for the evaluation of two specific technologies for soil management in these areas. Crop livestock integration on the ridge-based system offered the best balance between food production, environmental impact and economics. This system is well suited to be used in fields that are kept fallow, thereby enlarging the agricultural productivity of the lowlands. The additional experiments revealed that a knife-roller can successfully substitute plough-and-harrow for soil preparation after rice harvest, and that germination of weed seeds can be reduced if crop seeding is conducted at a lower speed or using a no-tillage seeder equipped with an improved cutting mechanism. Overall the results show that by using alternative cropping systems that allow for diversification and new methods of field management it is possible to simultaneously attain a larger agricultural production and improved sustainability in the lowlands.

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Effectiveness of Current Fertilizer Recommendations for Irrigated Rice in Integrated Crop-Livestock Systems

Cited by 6 publications

References 10 publications

Integrated crop–livestock systems in lowlands increase the availability of nutrients to irrigated rice

Integrated crop–livestock systems in lowlands increase the availability of nutrients to irrigated rice

Integrated crop–livestock systems in paddy fields: New strategies for flooded rice nutrition

A comprehensive assessment of agriculture in lowlands of south Brazil: characterization and comparison of current and alternative concepts

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