Effect of soybean (Glycine max) as a breakcrop on the cane and sugar yield of sugarcane

Shoko, M. D.; Pieterse, P. J. S.; Zhou, Marvellous

doi:10.1007/s12355-009-0043-3

Cited by 5 publications

(3 citation statements)

References 7 publications

(8 reference statements)

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“…The main benefits of such rotations include improving N supply [100][101][102][103], weed control [104], reduction in the population of nematodes [105], and erosion control, and increasing yields [100,102,106].…”

Section: Influence Of Crop Rotation On Nitrogen Fertilizationmentioning

confidence: 99%

Nitrogen Use Efficiency for Sugarcane-Biofuel Production: What Is Next?

Otto

Castro

Mariano³

et al. 2016

Bioenerg. Res.

116

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Land area devoted to sugarcane (Saccharum spp.) production in Brazil has increased from 2 million to 10 million ha over the past four decades. Studies have shown that, from an environmental perspective, the transformation of nitrogen (N) fertilizers into N 2 O gases can offset the advantages gained by replacing fossil fuels with biofuels. Our objectives here were to review recent developments in N management for sugarcane-biofuel production and assess estimates of N use efficiency (NUE) and N losses based on future scenarios, as well as for life-cycle assessments of bioenergy production. Approximately 60 % of N-based fertilizer applied to sugarcane fields in Brazil is recovered by plants and soils, whereas N losses to leaching and N 2 O emissions can average 5.6 and 1.84 % of the total applied N, respectively. Maintenance of trash, rotation with N-fixing legume species, and optimization of byproducts usage have potential for reducing the N requirements of sugarcane cultivation in Brazil. Moreover, the development of sugarcane genotypes with higher NUEs, along with management systems that consider soil capacity of mineralization, is required for improving the NUE of sugarcane. Strategies to maintain N as NH 4 + in sugarcane-cropped soils also have the potential to reduce N losses and enhance NUE. The development of secondgeneration biofuels is important for increasing biofuel production while simultaneously maintaining N rates and improving NUE, and sugarcane systems in Brazil show potential for sustainable biofuel production with low N rates and limited N 2 O losses. Reducing N rates in sugarcane fields is thus necessary for improving sugarcane-based biofuel production and reducing its environmental impacts.

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Section: Influence Of Crop Rotation On Nitrogen Fertilizationmentioning

confidence: 99%

Nitrogen Use Efficiency for Sugarcane-Biofuel Production: What Is Next?

Otto

Castro

Mariano³

et al. 2016

Bioenerg. Res.

116

View full text Add to dashboard Cite

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“…In this process, N 2 is converted to ammonia by nitrogenase (Ciccolella et al, 2010;Graham, 2008;Lafond et al, 2011;Shoko et al, 2009;Wang and Daun, 2004).…”

Section: Agrimentioning

confidence: 99%

Iron Bioavailability in Low Phytate Pea

et al. 2015

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Field pea (Pisum sativum L.) seeds have high nutritional value but also contain phytate which can inhibit the absorption and utilization of nutrients. Phytate is the main storage form of phosphorus in the seeds but chelates Fe, Zn and some other micronutrients and is not well digested by monogastrics. Peas with pigmented seed coats contain polyphenols which also have anti-nutritional properties. To increase the nutritional value of field pea seeds, two low phytate lines (1-150-81 and 1-2347-144) containing higher inorganic phosphorus concentration (IN-P) and lower phytate-phosphorus concentration (PA-P) than the normal phytate varieties were developed from CDC Bronco in previous research. The objectives of this research were 1) to determine the effect of genotype and environment on iron bioavailability in a set of five pea varieties differing in phytate concentration and iron concentration using in vitro digestion/Caco-2 cell culture bioassay; 2) to determine the effect of seed coats on iron bioavailability by testing whole seeds compared to dehulled seeds in varieties differing in seed coat pigmentation using in vitro digestion/Caco-2 cell culture bioassay; 3) to determine the inheritance of iron bioavailability in field pea by evaluating recombinant inbred lines differing in phytate concentration using in vitro digestion/Caco-2 cell culture bioassay; 4) to determine the effects of pea with the low phytate trait on body weight and hemoglobin concentration of chickens. Iron concentration (FECON) did not differ significantly between normal and low phytate varieties. Iron bioavailability (FEBIO) of the two low-phytate lines was 1.4 to 1.9 times higher than that of the three normal phytate varieties, and growing environment also had a significant effect on FEBIO. Peas with pigmented seed coats contained 7 times lower FEBIO than peas with non-pigmented seed coat. The removal of the seed coat increased the FEBIO in peas with pigmented seed coat 5 to 6 times. From previous research on PR-15 recombinant inbred lines (RILs) which were developed from a cross between low phytate line 1-2347-144 and a normal phytate variety CDC Meadow, it was found that PA-P was controlled by a single gene. FEBIO, in this study, was also found to follow a bimodal frequency distribution, characteristic of single gene iii control, and it was highly correlated with PA-P in the PR-15 lines. In vivo studies were used to evaluate iron absorption of chickens fed with low and normal phytate pea diets. The diets containing the low-phytate pea lines had no significant effect on chicken body weight and hemoglobin level, compared with the diets containing normal phytate pea varieties. An unexpected high FECON was discovered in the diets that was traced to the ingredients of limestone and dicalcium-phosphate which likely affected the experimental results.iv

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“…Limited research studies were conducted on the sugarcane-legume fallow system. Accordingly, vegetable legumes have increased the cane yield compared to grain legumes in Zimbabwe (Shoko et al, 2009).…”

Section: Sugarcane-legume Fallowmentioning

confidence: 99%