Recovery of 15N fertilizer in intercropped maize, grass and legume and residual effect in black oat under tropical conditions

Costa, Nídia Raquel; Crusciol, Carlos Alexandre Costa; Trivelin, P. C. O.; Pariz, Cristiano Magalhães; Costa, Ciniro; Castilhos, André Michel de; Souza, Daniel Martins de; Bossolani, João William; Andreotti, Marcelo; Meirelles, Paulo Roberto de Lima; Moretti, Luiz Gustavo; Mariano, Eduardo

doi:10.1016/j.agee.2020.107226

Cited by 13 publications

(6 citation statements)

References 53 publications

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“…Compared with monocropping, intercropping legume green manure increased the yield of proso millet by 13.9-50.1% [29] and maize by 35% [22]. As reported, approximately two-thirds of 11 rice cultivars [30] and black oats [31] showed significantly increased yields with intercropping, compared with monocropping.…”

Section: Effects Of Intercropping Combined With Nitrogen Application On Crop Growthsupporting

confidence: 56%

“…Frugal application of nitrogen fertilizer has a critical role in saving production costs and improving the yield and quality of oilseed rape [33]. At present, the existing research on green manure pertains mainly to grain crops or others with higher economic value [22,24,31,34]. Studies have rarely associated the application of green manure with the reduction of nitrogen fertilizer and nitrogen utilization efficiency of oilseed rape.…”

Section: Effects Of Intercropping Combined With Nitrogen Application On Crop Growthmentioning

confidence: 99%

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Green Manure Amendment Can Reduce Nitrogen Fertilizer Application Rates for Oilseed Rape in Maize–Oilseed Rape Rotation

Huang

et al. 2021

Plants

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Excessive use of chemical fertilizers has led to a reduction in the quality of arable land and environmental pollution. Using green manure to replace chemical fertilizers is one of the most effective solutions. To study the effect of green manure on the requirement for nitrogen fertilizer in oilseed rape, a field experiment with maize–oilseed rape rotation was conducted. Green manure was intercropped between rows of maize and returned after the maize harvest, with no green manure intercropped as control. Different nitrogen fertilizer treatments (0, 65%, 75% and 100% N rates, respectively) were applied during the oilseed rape season. The results showed that with a 35% reduction in nitrogen application rate, the rapeseed grain yield was significantly higher with the maize intercropping with green manure returned to the field than with the maize monocropping treatment at the same nitrogen level. Under conditions of intercropping and return of green manure, compared with the full standard rate of nitrogen fertilizer treatment, a reduction in nitrogen application of 25–30% in the rape season had no significant effect on rape yield. The agronomic efficiency of nitrogen fertilizer on oilseed rape increased significantly, by 47.61–121%, with green manure incorporation. In addition, green manure incorporation significantly increased the soil organic matter content and the soil-available nitrogen content when chemical nitrogen fertilization was abandoned. Benefit analysis showed that a 25–35% reduction in chemical nitrogen fertilizer applied to oilseed rape crops could be achieved by intercropping green manure in the maize season before the sowing of rapeseed in the experimental area. In the long-term, this measure would increase nitrogen utility, reduce production costs, and have concomitant environmental benefits of improving the quality of cultivated land.

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Section: Effects Of Intercropping Combined With Nitrogen Application On Crop Growthsupporting

confidence: 56%

Section: Effects Of Intercropping Combined With Nitrogen Application On Crop Growthmentioning

confidence: 99%

Green Manure Amendment Can Reduce Nitrogen Fertilizer Application Rates for Oilseed Rape in Maize–Oilseed Rape Rotation

Huang

et al. 2021

Plants

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“…In other direction, because of its deeper rooting systems, tropical perennial grasses can uptake nutrients that are lost from the root zones of other crops and make them available for plant uptake in intercropping or crop rotation systems. Recycling this nutrient that were not available for the cash crops can increase nutrient use efficiency in longer term (Baptistella et al., 2020; Costa, Crusciol, et al., 2021).…”

Section: Discussionmentioning

confidence: 99%

Cover crop diversity for sustainable agriculture: Insights from the Cerrado biome

Souza,

Santos,

Ferreira

et al. 2024

Soil Use and Management

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Brazil is one of the largest soybean producer of the world and the Cerrado biome has played a pivotal role in this expansion. Due to the economic and agronomic challenges associated with the maize production as a second summer crop in this region, cover crops are gaining popularity as a strategy to diversify the agricultural system while enhancing soil health. This study assessed the benefits of single species of cover crops and a mix of cover crop species in between harvest seasons to the soybean grain yield and nematode supression. The study was carried out for three years in two locations within the Cerrado biome. We evaluated six cover crop treatments after soybean cultivation: 1) Mix of cover crops (Pennisetum glaucum, Crotalaria spectabilis, and Urochloa ruziziensis), 2) P. glaucum (Pearl millet), 3) Crotalaria spectabilis, 4) Urochloa ruziziensis (Congo grass) 5) Urochloa brizantha cv. Marandu (Marandu palisadegrass), and 6) Urochloa brizantha BRS Paiaguás (Paiaguás palisadegrass). P. glaucum and U. brizantha cv. Marandu produced highest amounts of biomass on a 3‐year average. In one site, P. glaucum produced more biomass than other cover crops by 210%. Tropical grasses (U. ruziziensis, Marandu, and Paiaguás), along with the cover crop mixture, exhibited intermediate biomass levels in the site with higher P. glaucum biomass production and did not differ from P. glaucum in the other site. Cover crops varied nutrient uptake depending on the species. Decomposition rates varied among cover crops as expected, with C. spectabilis decomposing rapidly and releasing substantial amounts nutrients, particularly nitrogen. In contrast, the cover crop mixture had a slower decomposition. The choice of cover crop significantly influenced soybean population and yield, with some variability across years and locations. The cover crop mixture consistently supported higher soybean populations and yields, highlighting its potential for enhancing soybean production, nutrient cycling, and nematode suppression. It effectively reduced nematode abundance in soybean roots, highlighting its role in nematode management. Our findings emphasize the robustness and versatility of cover crop mixtures in mitigating weather variability across years and sites. They consistently performed well in terms of biomass production, nutrient uptake, soybean yields, and nematode control. This study highlights the vital role of cover crops in the Cerrado ecosystem, enhancing soil health, crop productivity, and environmental sustainability. The choice of cover crop species and mixtures offers a valuable tool for farmers seeking resilient and sustainable agricultural practices amid changing environmental conditions.

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“…The relevant calculation formulas are shown below:N uptake = m plant × TN plant % /100Ndff plant (%) = ( 15 N plant − 0.3663)/( 15 N fertilizer − 0.3663)N plant = N uptake × Ndff plant (%)N soil = N uptake × Ndff soil (%)NRE (%) = 15 N soil residual /NR × 100NUE (%) = N plant /NR × 100NLE (%) = 1 − NUE − NREwhere N uptake represents the amount of N absorbed by plants; m plant and m soil are the dry weights of the plant and soil, respectively; TN soil and TN plant are the TN content of the soil and plants; Ndff plant represents the proportion of N from the fertilizer in soil; 15 N plant and 15 N fertilizer are the abundance of 15 N in the plants and applied fertilizers, respectively; 0.3663 is the natural abundance of isotope 15 N. N plant and N soil represent the amount of fertilizer N and soil N assimilated by plants, respectively; 15 N soil residual refers to the residual 15 N content in soil, NR is the total N application, NRE is the residual efficiency of 15 N fertilizer, NUE represents the utilization efficiency of N fertilizer and NLE is the loss efficiency of N fertilizer. 48…”

Section: Methodsmentioning

confidence: 99%

Multi-walled carbon nanotubes improve nitrogen use efficiency and nutritional quality inBrassica campestris

CAI

Zhang

Guo

et al. 2022

Environ. Sci.: Nano

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Recovery of 15N fertilizer in intercropped maize, grass and legume and residual effect in black oat under tropical conditions

Cited by 13 publications

References 53 publications

Green Manure Amendment Can Reduce Nitrogen Fertilizer Application Rates for Oilseed Rape in Maize–Oilseed Rape Rotation

Green Manure Amendment Can Reduce Nitrogen Fertilizer Application Rates for Oilseed Rape in Maize–Oilseed Rape Rotation

Cover crop diversity for sustainable agriculture: Insights from the Cerrado biome

Multi-walled carbon nanotubes improve nitrogen use efficiency and nutritional quality inBrassica campestris

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