4 results on '"Cristiano M. Pariz"'
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2. Nitrogen-Fertilized Systems of Maize Intercropped With Tropical Grasses for Enhanced Yields and Estimated Land Use and Meat Production
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Carlos A. C. Crusciol, Gustavo P. Mateus, Letusa Momesso, Cristiano M. Pariz, André M. Castilhos, Juliano C. Calonego, Emerson Borghi, Ciniro Costa, Alan J. Franzluebbers, and Heitor Cantarella
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Brachiaria brizantha ,Megathyrsus maximus ,Zea mays L. ,tropical agriculture ,intercropping grasses ,no-tillage system ,Nutrition. Foods and food supply ,TX341-641 ,Food processing and manufacture ,TP368-456 - Abstract
Intercropping grain with forage crops bridges the gap between agriculture and sustainability. In tropical regions, forage grasses are increasingly being adopted as winter pasture intercropped and in rotation with maize to maximize food production. However, current recommendations for nitrogen (N) fertilizer application are based on monocropped maize (Zea mays), and the best N management approach for intercropping systems remains unclear. A field experiment was carried out in three growing seasons with three intercropping systems [monoculture maize, intercropped with palisadegrass (Urochloa brizantha), and intercropped with guineagrass (Megathyrus maximus)] combined with six different split applications of N to maize (0–0, 100–0, 70–30, 50–50, 30–70, and 0–100 kg N ha−1 at seeding-sidedressing) with four replicates. We measured dry matter (DM) and accumulated N in maize and forage grasses, as well as maize production components and yields. Additionally, land equivalent ratio, relative crowding coefficient, aggressivity of maize with forage grasses, forage crude protein (CP) concentration, estimated animal stocking rate, and estimated meat production and economic outcomes. Greatest maize yield was 8.7 Mg ha−1 for monocropped maize. However, favorable maize yield was also obtained in intercropping systems. Although no difference was observed between intercropping systems, applying all N at sidedressing of maize negatively affected maize and forage yields and, consequently, land use and economic evaluation. For both intercropping systems, estimated meat and land use were 114 and 10% higher when N fertilizer was applied than the control (0–0 kg N ha−1), on average. Maize-forage grass intercropping is a viable alternative production system for improving yields and land use. In addition, estimated meat production and revenue can be enhanced with palisadegrass or guineagrass. At least half of the N fertilizer must be applied early in the growing season of maize to maximize production of the entire system.
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- 2020
- Full Text
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3. Overcoming Competition From Intercropped Forages on Upland Rice With Optimized Nitrogen Input to Food Production in Tropical Region
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Carlos A. C. Crusciol, José R. Portugal, Letusa Momesso, Joao W. Bossolani, Cristiano M. Pariz, André M. Castilhos, Nídia R. Costa, Claudio H. M. Costa, Ciniro Costa, Alan J. Franzluebbers, and Heitor Cantarella
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Oryza sativa L. ,Urochloa brizantha ,Megathyrsus maximus ,intercropping crops ,sustainable agroecosystem ,Nutrition. Foods and food supply ,TX341-641 ,Food processing and manufacture ,TP368-456 - Abstract
Intercropping forage grasses with upland rice is an alternative cropping system to improve agroecosystem diversification and could potentially enhance sustainability in tropical regions. However, nitrogen (N) immobilization and nutrient competition between rice and forage grasses could reduce rice grain yield and decrease overall productivity. Therefore, fertilizer N requirements of upland rice intercropped with forage grasses needs to be better defined. Field experiments were carried out during three growing seasons on a Typic Haplorthox soil in São Paulo state of Brazil. The experimental design was a randomized block design with a 3 × 4 factorial scheme with four replications. Treatments were cropping system [monocropped rice (Oryza sativa L.), rice intercropped with palisadegrass (Urochloa brizantha), and rice intercropped with guineagrass (Megathyrsus maximus) and sidedress N application rate (0, 40, 80, and 120 kg N ha−1). Intercropped grasses were sown between upland rice rows 30 days after rice emergence. On average, intercropping of rice with palisadegrass or guineagrass decreased rice shoot dry matter and grain yield by 11% and milled rice productivity by 10% compared with monocropped rice. Grain yield, grain protein, and milled productivity of rice increased as N application rate increased. Forage dry matter production (first and second cut) and crude protein (second cut) were greatest in the rice + palisadegrass intercropping system. Production of both forage grasses increased with up to 80 kg N ha−1 in the first cut and increased linearly with N in the second cut. Intercropping of rice with palisadegrass or guineagrass with 80 kg N ha−1 application resulted in the greatest land equivalent ratio (1.96 and 1.55, respectively). Relative N yield was greatest at 120 kg N ha−1 (220 and 173%, respectively). Although rice monocropping had greatest grain yield, intercropping systems with forage grasses were more favorable from both economic and environmental perspectives by enhancing plant diversification, nutrient cycling with forage grasses, land use production per unit area, and profitability throughout the year.
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- 2020
- Full Text
- View/download PDF
4. Annual crop rotation of tropical pastures with no-till soil as affected by lime surface application
- Author
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Jayme Ferrari Neto, Antonio C.A. Carmeis Filho, Claudio Costa, Gustavo Spadotti Amaral Castro, Cristiano Magalhães Pariz, André M. Castilhos, Carlos Alexandre Costa Crusciol, Rúbia Renata Marques, Rogério Peres Soratto, Universidade Estadual Paulista (Unesp), Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), CARLOS A. C. CRUSCIOL, UNESP, RUBIA R. MARQUES, UNESP, ANTÔNIO C. A. CARMEIS FILHO, UNESP, ROGÉRIO P. SORATTO, UNESP, CARLOS H. M. COSTA, UNESP, JAYME FERRARI NETO, UNESP, GUSTAVO SPADOTTI AMARAL CASTRO, CNPM, CRISTIANO M. PARIZ, UNESP, and ANDRÉ M. DE CASTILHOS, UNESP.
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0106 biological sciences ,Sustainability of tropical agriculture ,Soil management ,Soil Science ,Plant Science ,engineering.material ,01 natural sciences ,No-till farming ,Net profit ,Soil pH ,Plant nutrition ,Lime ,biology ,Tropical agriculture ,Acidity ,Crop yield ,Intercropping ,04 agricultural and veterinary sciences ,Crop rotation ,biology.organism_classification ,Agronomy ,040103 agronomy & agriculture ,engineering ,0401 agriculture, forestry, and fisheries ,Environmental science ,Agronomy and Crop Science ,010606 plant biology & botany - Abstract
Made available in DSpace on 2018-12-11T17:06:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-10-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Soil acidity and low natural fertility are the main limiting factors for grain production in tropical regions such as the Brazilian Cerrado. The application of lime to the surface of no-till soil can improve plant nutrition, dry matter production, crop yields and revenue. The present study, conducted at the Lageado Experimental Farm in Botucatu, State of São Paulo, Brazil, is part of an ongoing research project initiated in 2002 to evaluate the long-term effects of the surface application of lime on the soil's chemical attributes, nutrition and kernel/grain yield of peanut (Arachis hypogaea), white oat (Avena sativa L.) and maize (Zea mays L.) intercropped with palisade grass (Urochloa brizantha cv. Marandu), as well as the forage dry matter yield of palisade grass in winter/spring, its crude protein concentration, estimated meat production, and revenue in a tropical region with a dry winter during four growing seasons. The experiment was designed in randomized blocks with four replications. The treatments consisted of four rates of lime application (0, 1000, 2000 and 4000 kg ha−1), performed in November 2004. The surface application of limestone to the studied tropical no-till soil was efficient in reducing soil acidity from the surface down to a depth of 0.60 m and resulted in greater availability of P and K at the soil surface. Ca and Mg availability in the soil also increased with the lime application rate, up to a depth of 0.60 m. Nutrient absorption was enhanced with liming, especially regarding the nutrient uptake of K, Ca and Mg by plants. Significant increases in the yield components and kernel/grain yields of peanut, white oat and maize were obtained through the surface application of limestone. The lime rates estimated to achieve the maximum grain yield, especially in white oat and maize, were very close to the rates necessary to increase the base saturation of a soil sample collected at a depth of 0–0.20 m to 70%, indicating that the surface liming of 2000 kg ha−1 is effective for the studied tropical no-till soil. This lime rate also increases the forage dry matter yield, crude protein concentration and estimated meat production during winter/spring in the maize-palisade grass intercropping, provides the highest total and mean net profit during the four growing seasons, and can improve the long-term sustainability of tropical agriculture in the Brazilian Cerrado. São Paulo State University (UNESP) College of Agricultural Sciences Department of Crop Science, P.O. Box: 237 Brazilian Agricultural Research Corporation (EMBRAPA) UNESP School of Veterinary Medicine and Animal Science Department of Animal Nutrition and Breeding, P.O. Box: 560 São Paulo State University (UNESP) College of Agricultural Sciences Department of Crop Science, P.O. Box: 237 UNESP School of Veterinary Medicine and Animal Science Department of Animal Nutrition and Breeding, P.O. Box: 560 FAPESP: #2003/09914-3
- Published
- 2016
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