Straw decomposition of nitrogen-fertilized grasses intercropped with irrigated maize in an integrated crop-livestock system

Pariz, Cristiano Magalhães; Andreotti, Marcelo; Buzetti, Salatiér; Bergamaschine, Antônio Fernando; Ulian, Nelson de Araújo; Furlan, Luciano Coletti; Meirelles, Paulo Roberto de Lima; Cavasano, Francielli Aparecida

doi:10.1590/s0100-06832011000600019

Cited by 50 publications

(89 citation statements)

References 7 publications

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“…Under the conditions of lowland Cerrado with dry and hot winters, due to the rapid decomposition of the plant residues left on the soil surface, annual residue amounts up to 12,000 kg ha -1 become necessary (Chioderoli et al, 2010(Chioderoli et al, , 2012Pariz et al, 2011a). This amount can only be produced in systems that include the use of cover crops integrated in intercrops or crop rotation, as in this study, in which the amount of maize and forage plant residues exceeded 15,000 kg ha -1 .…”

Section: Resultsmentioning

confidence: 99%

“…After desiccation, forage fresh mass of each plot was exposed to decomposition in nylon bags (litter bags of 0.06 m 2 , 0.3 × 0.2 m), proportionally to the amount per hectare (Pariz et al, 2011a). The litter bags were distributed and left on the ground in direct contact with the soil for 30, 60, 90, and 120 days.…”

Section: Methodsmentioning

confidence: 99%

“…Consequently, these areas are left fallow for a period of more than seven months a year (Dinar et al, 2008;Borghi et al, 2013). Moreover, plant residues decompose quickly in these regions (Pariz et al, 2011a;Costa et al, 2014). Summing up, all these conditions affect the sustainability of NTS.…”

Section: Introductionmentioning

confidence: 99%

“…Brachiaria) and Panicum, aside from producing large amounts of dry matter, which is critical for residue formation in NTS, also have high C/N and lignin/total N ratios, reducing the decomposition rate and protecting the soil against erosion and solar radiation action for a longer time (Pariz et al, 2011a;Costa et al, 2014). Maize also produces large amounts of dry matter and can increase residue production in intercrops with these forages, with positive effects on soil physical properties and the productivity of subsequent soybean (Chioderoli et al, 2010;.…”

Section: Introductionmentioning

confidence: 99%

“…Crop residues on the soil surface represent important reserves, from which nutrients can become available rapidly and at high rates (Rosolem et al, 2003), or slowly and gradually, according to the interactions between climate factors, mainly rainfall and temperature, macro and microbiological activity of the soil, and residue quality and quantity (Alcântara et al, 2000;Oliveira et al, 2002;Pariz et al, 2011a). However, for an effective cycling of a forage species, the nutrients released from the residues and the demand of the subsequently grown cash crop should be synchronized (Braz et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Autumn Maize Intercropped with Tropical Forages: Crop Residues, Nutrient Cycling, Subsequent Soybean and Soil Quality

Pereira

Mello

Pariz

et al. 2016

Rev. Bras. Ciênc. Solo

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Autumn maize intercropped with tropical forages can raise the amount of crop residues and improve nutrient cycling, favoring subsequent soybean crop. The objective of this study was to evaluate the effect of forms of implementation of intercropping of irrigated autumn maize with tropical forages on yield, decomposition, nutrient accumulation and release, and on the ratio of lignin/total N of forage residues, yield components, and grain yield of subsequent soybean, and on soil physical and chemical properties, under no-tillage in lowland Cerrado. The experiment was arranged in randomized blocks in a factorial (4 × 3 + 1) design with one control and four replications. The treatments consisted of four forages: Palisade grass, Congo grass, and two Guinea grass cultivars (Tanzânia and Áries); and three methods of sowing intercrops of forageautumn maize: forage sown simultaneously with maize in the sowing furrow, mixed with fertilizer; forage sown by broadcasting on the day of maize sowing; and forage seeds mixed with fertilizer broadcast on maize in growth stage V4; plus a control (maize monoculture). The decomposition and nutrient release rate of the forage residues were evaluated by the litter bag method, 30, 60, 90, and 120 days after desiccation. Sowing the forages in the furrow and by broadcasting raise the total amount of maize residues compared to method V4. Regardless of the forage type and sowing methods, intercropping increases the amount of residues compared to maize monoculture. The forages and sowing methods had no influence on nutrient accumulation in the residues at the time of desiccation and at the lowest lignin/total N ratio in Congo grass residues, and a logarithmic decay was observed. Forage and sowing methods did not influence the macronutrient release rate from crop residues for 120 days after desiccation; the release of N, P, K and Mg is logarithmic and the release of Ca and S exponential. Forage and sowing methods do not influence yield components and grain yield of subsequent soybean. However, intercropping increased grain yield of subsequent soybean compared to soybean after maize monoculture, and preserved the soil chemical and physical properties.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Autumn Maize Intercropped with Tropical Forages: Crop Residues, Nutrient Cycling, Subsequent Soybean and Soil Quality

Pereira

Mello

Pariz

et al. 2016

Rev. Bras. Ciênc. Solo

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Do cover crops improve the productivity and industrial quality of upland rice?

et al. 2020

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Global rice (Oryza sativa L.) cultivation is expected to increase, especially in upland no‐tillage systems (NTS). The difficulty in producing and maintaining straw in NTS in the Brazilian Cerrado and comparative regions worldwide can be overcome by using cover crops in irrigated areas. The potential of straw accumulation, soil cover maintenance, and nutrient cycling is considered while choosing cover crop species, because these characteristics may interfere with subsequent crop cultivation. This study was conducted to determine whether cover crops could benefit the development, productivity, and industrial quality of upland rice grains irrigated by sprinklers and cultivated in succession. The experiment was conducted in the Cerrado, with a summer rainy season and a dry winter. The treatments consisted of six cover crops (millet [Pennisetum glaucum], sunn hemp [Crotalaria juncea], pigeonpea [Cajanus cajan], millet + sunn hemp, millet + pigeonpea, and fallow) sowed in winter or spring. Compared to fallow, the cover crops cultivated in winter or spring led to increased straw production, accumulation of approximately 150% more nitrogen in straw, and possibly improved rice nutritional value because of the higher N content. Rice plants cultivated after sunn hemp developed a greater dry mass than rice cultivated after the fallow treatment. Grain yield was not influenced by the cover crops. However, sunn hemp cultivation increased the milling yield, head rice yield, and the milled rice productivity (MRP), compared to cultivation following the fallow treatment. Cultivation of sunn hemp before the upland rice crop improved MRP compared to that following the fallow treatment.

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Production, nutrient cycling and soil compaction to grazing of grass companion cropping with corn and soybean

Pariz

Costa

Crusciol

et al. 2017

Nutr Cycl Agroecosyst

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Agricultural management systems are needed to simultaneously enhance production, promote plant diversity, improve nutrient cycling and reduce soil compaction. We investigated the effects of intercropped forage grass on production of corn (Zea mays L.) harvested for silage at 0.20 and 0.45 m height in the summer, as well as on production of subsequent forage, soybean [Glycine max (L.) Merr.] harvested for silage, nutrient cycling and soil responses on a Typic Haplorthox in Botucatu, São Paulo State, Brazil. Palisade grass cv. BRS Piatã [Urochloa brizantha cv. BRS Piatã] was the introduced companion crop with corn (Years 1 and 2), while signal grass [Urochloa decumbens cv. Basilisk] was the residual weedy species in comparison. Guineagrass cv. Aruãna [Megathyrsus maximus cv. Aruãna] was the introduced companion crop with soybean (Year 3), with only a residual effect of crop systems from the previous two years. After the corn silage harvest, pasture was grazed by lambs in winter/spring using a semi-feedlot system. When cut at 0.45 m compared with 0.20 m height, corn intercropped with palisade grass had greater leaf nutrient concentration, improved agronomic characteristics, forage mass of pasture for grazing by lambs, greater surface mulch produced, and greater quantity of N, P and K returned to soil. Greater soil organic matter, P, K and Mg concentration, and base saturation in the surface soil depth and lower soil penetration resistance at all depths occurred at 0.45 m than at 0.20 m corn silage cutting height intercropped with palisade grass. Analyzing the system as a whole, harvesting corn silage crop with palisade grass intercrop at 0.45 m height was the most viable option in this integrated crop-livestock system.

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Straw decomposition of nitrogen-fertilized grasses intercropped with irrigated maize in an integrated crop-livestock system

Abstract: SUMMARYThe greatest limitation to the sustainability of no-till systems in Cerrado environments is the low quantity and rapid decomposition of straw left on the soil surface between fall and spring, due to water deficit and high temperatures. "Litter Bag" (15, 30, 60, 90, 120

Cited by 50 publications

References 7 publications

Autumn Maize Intercropped with Tropical Forages: Crop Residues, Nutrient Cycling, Subsequent Soybean and Soil Quality

Autumn Maize Intercropped with Tropical Forages: Crop Residues, Nutrient Cycling, Subsequent Soybean and Soil Quality

Do cover crops improve the productivity and industrial quality of upland rice?

Production, nutrient cycling and soil compaction to grazing of grass companion cropping with corn and soybean

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