scholarly journals Accumulation of micronutrients by sweet sorghum under field conditions

1981 ◽  
Vol 38 (1) ◽  
pp. 243-256
Author(s):  
C.A. Rosolem ◽  
E. Malavolta ◽  
J. R. Machado
Keyword(s):  
Life Cycle ◽  
Sweet Sorghum ◽  
Field Conditions ◽  
Rate Of Absorption ◽  
Red Latosol ◽  
Routine Procedures

Samples of two cultivars of sweet sorghum (Brandes and Rio) grown on a Dark Red Latosol (Latossolo Roxo, Barra Bonita, SP.) were collected at intervals of 20 days during their life cycle and the contents of micronutrients were determined by routine procedures. Usually the physiological stages in which the rate of absorption was higher were not the same for both varieties.

scholarly journals Changes in chemical properties of distrophic Red Latosol as result of swine wastewater application

2014 ◽  
Vol 18 (2) ◽  
pp. 210-216 ◽  
Author(s):  
Juarez R. Cabral ◽  
Paulo S. L. de Freitas ◽  
Roberto Rezende ◽  
Antonio S. Muniz ◽  
Altair Bertonha
Keyword(s):  
Chemical Properties ◽  
Field Conditions ◽  
Swine Wastewater ◽  
Mineral Fertilizers ◽  
Elephant Grass ◽  
Soil Aluminum ◽  
Crop Cycle ◽  
Red Latosol

Swine wastewater (SW) has characteristics that allow its disposal in the soil as a fertilizer. This is an alternative in order not to accumulate this material in the farm as well as it provides savings with mineral fertilizers. The aim of this study was to evaluate the effect of applying swine wastewater on the chemical properties of a distrophic Red Latosol for two seasons. The experiment was carried out under field conditions with treatments defined as T0 = 0 (control), T1 = 150, T2 = 300, T3 = 450, T4 = 600, T5 = 750 m3 ha-1 of SW applied during the crop cycle of elephant grass. SW application contributed to the increase of magnesium and phosphorus and the reduction of soil aluminum in the first season. As for the second season when compared to the first one, there were reductions in K, Ca, and P concentrations. Hence applications of SW did not contribute to the increase in concentration of elements in the soil.

Biology of Bucculatrix parthenica Bradley sp. n. (Lepidoptera: Bucculatricidae) and its establishment in Australia as a biological control agent for Parthenium hysterophorus (Asteraceae)

1990 ◽  
Vol 80 (4) ◽  
pp. 427-432 ◽  
Author(s):  
A. S. McClay ◽  
R. E. McFadyen ◽  
J. D. Bradley
Keyword(s):  
Biological Control ◽  
Life Cycle ◽  
Host Plant ◽  
Host Specificity ◽  
Biological Control Agent ◽  
Control Agent ◽  
Field Conditions ◽  
Parthenium Hysterophorus ◽  
Leaf Miners

AbstractBucculatrix parthenica Bradley sp. n., a moth native to Mexico, is described. It has been released and established in Queensland, Australia, as a biological control agent for its host plant, Parthenium hysterophorus. The moth oviposits on leaves of its host. First and second instar larvae are leaf miners, and later instars feed externally on the leaves. The life cycle occupies about 25 days under field conditions. B. parthenica was narrowly oligophagous in host-specificity tests. In Mexico the insect is scarce but in Queensland it has become abundant enough to cause extensive defoliation of its host plant at some sites. Its rapid increase in Queensland is attributed to the absence of parasitism.

Characterization of the life cycle of the tick Haemaphysalis tibetensis under field conditions in Qinghai-Tibet plateau

2016 ◽  
Vol 69 (1) ◽  
pp. 107-115 ◽  
Author(s):  
Ming Liu ◽  
Tuo Li ◽  
Zhi-Jun Yu ◽  
Xiao-He Gao ◽  
Chun-Wei Zuo ◽  
...  
Keyword(s):  
Life Cycle ◽  
Field Conditions ◽  
Tibet Plateau ◽  
Qinghai Tibet Plateau

Life cycle assessment of fuel ethanol produced from soluble sugar in sweet sorghum stalks in North China

2017 ◽  
Vol 161 ◽  
pp. 335-344 ◽  
Author(s):  
Ning Ding ◽  
Yang Yang ◽  
Hao Cai ◽  
Jingru Liu ◽  
Lantian Ren ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Sweet Sorghum ◽  
North China ◽  
Soluble Sugar ◽  
Fuel Ethanol

scholarly journals Crop improvement using life cycle datasets acquired under field conditions

2015 ◽  
Vol 6 ◽  
Author(s):  
Keiichi Mochida ◽  
Daisuke Saisho ◽  
Takashi Hirayama
Keyword(s):  
Life Cycle ◽  
Crop Improvement ◽  
Field Conditions

scholarly journals Nutrient uptake and nutritional efficiency in sweet sorghum

1981 ◽  
Vol 38 (1) ◽  
pp. 203-222
Author(s):  
C.A. Rosolem ◽  
E. Malavolta
Keyword(s):  
Life Cycle ◽  
Nutrient Uptake ◽  
Nutrient Solution ◽  
Sweet Sorghum ◽  
Dry Matter ◽  
Dry Matter Yield ◽  
Full Strength ◽  
Nutrient Solutions ◽  
Mineral Analyses

Two sweet sorghum varieties, Brandes and Rio, were grown in full strenght and diluted nutrient solutions till completing the life cycle wherein mineral analyses were carried out. As a rule both varieties showed the same capacity to absorb nutrients in the two rates supplied. Dry matter yield, however was different in the dilute nutrient solution. The variety Brandes produced more fresh stalks in the full strength solution than Rio; under nutricional stress the yield was lower. Dry matter of stalks in the case of the variety Rio was consistently higher.

scholarly journals Life cycle impact assessment of biofuels derived from sweet sorghum in the U.S.

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Karla G. Morrissey ◽  
Greg Thoma ◽  
Dora E. López
Keyword(s):  
Life Cycle ◽  
Environmental Impact ◽  
Impact Assessment ◽  
Life Cycle Impact Assessment ◽  
Sweet Sorghum ◽  
Fossil Fuel ◽  
Direct Injection ◽  
Juice Extraction ◽  
Life Cycle Impact ◽  
Petroleum Fuels

Abstract Background The objective of this study was to evaluate the environmental impact of the production of a range of liquid biofuels produced from the combination of fermenting sorghum stalk juice (bioethanol) and the pyrolysis/hydrotreatment of residual bagasse (renewable gasoline and diesel). Life cycle impact assessment (LCIA) was performed on a farm-to-wheels system that included: (i) sorghum farming, (ii) juice extraction, (iii) juice fermenting, (iv) bagasse pretreatment, (v) bagasse thermochemical treatment (pyrolysis, hydroprocessing, and steam reforming), and (vi) typical passenger vehicle operation. LCIA results were compared to those of petroleum fuels providing the equivalent functional unit—cumulative kilometers driven by spark ignition direct injection (SIDI) vehicles utilizing either renewable gasoline or ‘bioE85—a blend of bioethanol and renewable gasoline,’ and a compression ignition direct injection (CIDI) vehicle utilizing renewable diesel produced from 76 tons of harvested sweet sorghum (1 ha). Results Sweet sorghum biofuels resulted in a 48% reduction climate change impact and a 52% reduction in fossil fuel depletion. Additionally, reduced impacts in ozone depletion and eutrophication were found (67% and 47%, respectively). Petroleum fuels had lower impacts for the categories of non-carcinogenic health impact, smog, respiratory effects, and ecotoxicity, showing tradeoffs between sorghum and petroleum fuels. Conclusion Overall, sorghum biofuels provide advantages in environmental impact categories including global warming potential, fossil fuel depletion and eutrophication, showing potential for sorghum as a promising second-generation feedstock for fuel.

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