Comparison of Fall-Applied Pronamide with Spring-Applied Sethoxydim for Quackgrass (Agropyron repens) Control in Established Alfalfa (Medicago sativa)

Weed Science ◽  
1986 ◽  
Vol 34 (3) ◽  
pp. 444-448 ◽  
Author(s):  
Gilles D. Leroux ◽  
Robert G. Harvey
Keyword(s):  
Chemical Composition ◽  
Medicago Sativa ◽  
Crude Protein ◽  
Total Yield ◽  
Late Spring ◽  
Neutral Detergent Fiber ◽  
Acid Detergent Fiber ◽  
Herbicide Treatments ◽  
Agropyron Repens

Established stands of alfalfa (Medicago sativaL.) at two field locations were treated at one date in the fall with pronamide [3,5-dichloro (N-1,1-dimethyl-2-propynil) benzamide] at 0.8 and 1.6 kg ai/ha and at two dates in the spring with sethoxydim {2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one} at 0.3 and 0.6 kg ai/ha for the control of quackgrass [Agropyron repens(L.) Beauv. # AGRRE]. Herbicide efficacy was compared by measuring botanical and chemical composition and yield of forage. Both chemicals suppressed quackgrass in first-cutting herbage. While sethoxydim at the higher rate was equivalent to pronamide for increasing the proportion of alfalfa in forage, pronamide was superior for increasing seasonal total yield. Late postemergence applications of sethoxydim were more effective for quackgrass regrowth control than earlier spring applications. Controlling quackgrass in late spring resulted in lower crude protein (CP) content in first-cutting forage than did controlling it in fall. Alfalfa competing with untreated quackgrass had a lower CP content than where quackgrass was controlled with herbicides. All herbicide treatments reduced the neutral-detergent fiber (NDF) of the herbage. As measured by the acid-detergent fiber (ADF) concentration of alfalfa, sethoxydim slightly retarded spring growth of the legume.

scholarly journals Nutritional Characterization of Medicago sativa (Alfalfa) for Feeding to Ruminants

2021 ◽  
Author(s):  
F. Almeida López ◽  
P. Toalombo Vargas ◽  
S. Jiménez Yánez ◽  
M. Chávez Haro
Keyword(s):  
Medicago Sativa ◽  
Crude Protein ◽  
Central Zone ◽  
Neutral Detergent Fiber ◽  
Acid Detergent Fiber ◽  
Nitrogen Free Extract ◽  
Palabras Clave ◽  
Nutritional Characteristics ◽  
Region Data

This study aimed to analyze the nutritional characteristics of Medicago sativa (Alfalfa) hay for the feeding of ruminants in the central zone of the Sierra Region. The study was conducted in the Laboratory of the Faculty of Pecaurias Sciences of the Higher Polytechnic School of Chimborazo. Cutting was carried out for 60 days in different areas of the central Sierra region. Data were analyzed using descriptive statistics. Results of the bromatological analysis showed that the average total humidity was 11.12 ± 0.20% in (Rp-00542) while the minimum was 7.79 ± 0.05% in (Rp-00224). Values for dry matter ranged between 91.25 ± 0.03% (Rp336) and 88.53 ± 0.09% (Rp492); dry base ash ranged between 12.51 ± 0.08% (Rp500) and 9.16 ± 0.08% (Rp521); dry organic matter ranged between 90.84 ± 0.13% (Rp521) and 87.49 ± 0.08% (Rp521); and dry crude protein ranged between 22.44 ± 0.26% (Rp492) and 18.73 ± 0.08% (Rp336). The following values were also obtained: 1.94 ± 0.93% dry ethereal extract; 32.06 ± 2.11% dry nitrogen free extract; 46.96 ± 3.78% dry neutral detergent fiber; 40.67 ± 3.36% dry acid detergent fiber; and 8.23 ± 0.64% dry lignin detergent acid. Therefore, it can be determined that forage mixture provides all of the nutrients to the species of zootechnical interest. Keywords: Medicago sativa, alfalfa, sierra centro, rumiants. RESUMEN En el Laboratorio de la Facultad de Ciencias Pecaurias de la Escuela Superior Politécnica de Chimborazo, se realizó la Caracterización Nutricional de henos de Medicago sativa (Alfalfa) para la alimentación de Rumiantes en la zona centro de la Región Sierra; Mediante estadística descriptiva se obtuvo los siguientes resultados del análisis bromatológico a los 60 días de corte en las diferentes zonas de la región Sierra - Centro, se puede observar que el mayor promedio de la humedad total fue 11,12 ± 0,20% en (Rp-00542) mientras que el menos fue 7,79 ± 0,05% en (Rp-00224); para Materia Seca-Total los valores se obtuvieron entre  91,25 ± 0,03% (Rp336) y 88,53 ± 0,09% (Rp492); Cenizas base seca 12,51 ± 0,08% (Rp500) y 9,16 ± 0,08% (Rp521); el mayor valor para % Materia Orgánica Base seca fue de 90,84 ± 0,13% (Rp521) y el menor con 87,49 ± 0,08% (Rp521); para % Proteína cruda base seca la mejor respuesta fue 22,44 ± 0,26 (Rp492) % y el menor  18,73 ± 0,08 (Rp336), Fibra cruda base seca; 1,94 ± 0,93% Extracto etéreo base seca; 32,06 ± 2,11% Extracto Libre de Nitrógeno base seca; 46,96 ± 3,78% Fibra Detergente Neutro base seca; 40,67 ± 3,36% Fibra Detergente Acida base seca; 8,23 ± 0,64% Lignina Detergente Acida base seca. Por lo que se puede determinar que la mezcla forrajera aporta todos los nutrientes a todas las especies de interés zootécnico. Palabras clave: Medicago sativa, alfalfa, sierra centro, rumiantes.

Weed Invasion in Established Alfalfa (Medicago sativa) Seeded with Perennial Forage Grasses

1997 ◽  
Vol 11 (3) ◽  
pp. 556-560 ◽  
Author(s):  
Eric Spandl ◽  
James J. Kells ◽  
Oran B. Hesterman
Keyword(s):  
Medicago Sativa ◽  
Binary Mixtures ◽  
Crude Protein ◽  
Neutral Detergent Fiber ◽  
The Other ◽  
Forage Grasses ◽  
Acid Detergent Fiber ◽  
Weed Invasion ◽  
The Third ◽  
Forage Yields

Component yields and forage quality were evaluated in established stands of alfalfa seeded alone and in binary mixtures with smooth bromegrass, orchardgrass, or timothy. Forage yields and quality were determined at three annual harvests in the third and fourth years after seeding. Weed yields in alfalfa seeded alone were significantly greater than those in the alfalfa–orchardgrass mixture. Average weed content was 24, 17, 2, and 15% for the alfalfa seeded alone, alfalfa–bromegrass, alfalfa–orchardgrass, and alfalfa–timothy, respectively. Seeding alfalfa with orchardgrass increased first harvest and annual forage yields while reducing alfalfa yield. Yields of orchardgrass often exceeded those of bromegrass or timothy. In the first harvest each year, crude protein was reduced and acid detergent fiber and neutral detergent fiber increased by including orchardgrass. Neutral detergent fiber was greater in alfalfa–orchardgrass than in the alfalfa seeded alone at most harvests. There were no consistent differences among the alfalfa seeded alone and the other mixtures in yield or quality.

Influence of Hoary Alyssum (Berteroa incana) on Quality of Alfalfa (Medicago sativa) Forage and Its Utilization by Goats

Weed Science ◽  
1985 ◽  
Vol 33 (2) ◽  
pp. 280-284
Author(s):  
Gilles D. Leroux ◽  
R. Gordon Harvey ◽  
Neal A. Jorgensen ◽  
Michael Collins
Keyword(s):  
Chemical Composition ◽  
Medicago Sativa ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
Dry Matter Intake ◽  
Capra Hircus ◽  
Acid Detergent Fiber ◽  
Animal Utilization

The chemical composition and the utilization by domestic goats (Capra hircusL. ‘Saanen’) of alfalfa (Medicago sativaL.) hay and silage that contained or did not contain hoary alyssum [Berteroa incana(L.) DC. ♯ BEFIN] was studied. Alfalfa was higher in quality than hoary alyssum; crude protein (CP) was 38% higher, and the neutral- and acid-detergent fiber (NDF and ADF) were 18 and 29% lower, respectively. Less CP and more ADF were found in weedy hay than in other forages. Animal utilization, as measured by the dry-matter intake, digestible dry-matter intake, relative intake, and nutritive value index were greater for weed-free than for weedy forages. Hoary alyssum was more deleterious in chopped silage than in long hay, because of selective refusal of the weed by goats that were fed hay. The presence of hoary alyssum in alfalfa decreased its utilization by ruminants.

Quackgrass(Agropyron repens)Control in Established Alfalfa(Medicago sativa)With Pronamide

Weed Science ◽  
1978 ◽  
Vol 26 (2) ◽  
pp. 193-198 ◽  
Author(s):  
R. S. Fawcett ◽  
R. G. Harvey ◽  
D. A. Schlough ◽  
I. R. Block
Keyword(s):  
Medicago Sativa ◽  
Crude Protein ◽  
Dry Matter ◽  
Protein Concentration ◽  
Stand Density ◽  
Acid Detergent Fiber ◽  
Fiber Concentration ◽  
Second Year ◽  
Agropyron Repens

The degree and longevity of quackgrass [Agropyron repens(L.) Beauv.] control provided by autumn applications of pronamide [3,5-dichloro(N-1,1-dimethyl-2-propynyl)benzamide] was influenced greatly by alfalfa(Medicago sativaL.) stand density, as well as by rate of application and soil type. When applications were made to a field with a sparse alfalfa stand (10 to 20 crowns/m2), quackgrass yields were reduced the year following pronamide application, but quackgrass reinfested the plots the second year after treatment. Quackgrass yields one and two seasons following autumn treatment with 2.2 kg/ha pronamide were 1480 and 3890 kg/ha compared to 4480 and 4870 kg/ha for control plots. Annual applications of pronamide were necessary to maintain quackgrass control in the sparse alfalfa stand. Pronamide application to a vigorous, dense alfalfa stand (40 to 50 crowns/m2) provided quackgrass control which persisted into the second year after treatment. Quackgrass control ratings one and two seasons after application of 1.1 kg/ha pronamide were 100 and 90%. Pronamide treatments reduced first cutting quackgrass yields, and increased first cutting alfalfa yields. Treatment of the sparse alfalfa stand with 2.2 kg/ha pronamide resulted in first cutting alfalfa and quackgrass yields of 2420 and 990 kg/ha compared to 1430 and 3940 kg/ha for controls. Treatment of a dense alfalfa stand with 1.1 kg/ha pronamide resulted in first cutting alfalfa and quackgrass yields of 3850 and 300 kg/ha compared to 1710 and 1660 kg/ha for controls. Total herbage yields from all cuttings were either slightly decreased when fields with sparse alfalfa stands were treated or remained constant or slightly increased when more dense alfalfa stands were treated. Pronamide applied with potash as the carrier was as effective as when applied in water. Pronamide treatment resulted in increased crude protein concentration in first cutting herbage at all locations in all years. Crude protein concentration in first cutting control herbage ranged from 13.3 to 16.1%. Crude protein concentration in first cutting herbage from plots treated with 1.1 kg/ha pronamide ranged from 17.7 to 20.6%, depending on year and location. In vitro digestible dry matter (IVDDM) concentrations were increased by most rates of pronamide in first, second, and third cutting herbage. IVDDM for first cutting control herbage was 51.4% compared to 61.3% for herbage treated with 2.2 kg/ha pronamide. Acid detergent fiber concentration in first cutting herbage was not affected by pronamide.

Herbicides for Sod-Seeding Establishment of Alfalfa (Medicago sativa) in Quackgrass (Agropyron repens)-Infested Alfalfa Swards

Weed Science ◽  
1985 ◽  
Vol 33 (2) ◽  
pp. 222-228 ◽  
Author(s):  
Gilles D. Leroux ◽  
Robert G. Harvey
Keyword(s):  
Medicago Sativa ◽  
Crude Protein ◽  
Plant Density ◽  
Experimental Period ◽  
Forage Yield ◽  
Neutral Detergent Fiber ◽  
Seedling Density ◽  
Yield And Quality ◽  
Dichlorophenoxy Acetic Acid ◽  
Agropyron Repens

The herbicides 2,4-D [(2,4-dichlorophenoxy) acetic acid], dalapon (2,2-dichloropropionic acid), glyphosate [(N-phosphonomethyl)glycine], paraquat (1,1’-dimethyl-4,4’-bypiridinium ion), and pronamide [3,5-dichloro-(N-1,1-dimethyl-2-propynyl)benzamide] were applied at selected rates and dates to quackgrass [Agropyron repens(L.) Beauv. ♯ AGRRE]-infested alfalfa (Medicago sativaL.) sod in 1979 and 1980 to suppress vegetation for subsequent establishment of alfalfa without tillage. The influence of herbicides on weed control, alfalfa seedling density and visual stand, and forage yield and quality was assessed for 3 yr. During establishment, all herbicides except 2,4-D effectively controlled quackgrass. Glyphosate applied broadcast increasingly suppressed the existing sod as the rate was increased from 0.6 to 1.6 kg ai/ha. The effectiveness of herbicides as measured by total (old and new) plant density was closely related to the suppression of the sward. While the substitution of new alfalfa plants for old ones was not necessary under dense (40 plants/m2) alfalfa stands, completely controlling the vegetation with glyphosate resulted in sustained productivity throughout the experimental period. After 3 yr, alfalfa percentage and yield were highest when glyphosate was broadcast at 1.6 kg/ha. Improvement in forage quality, as estimated by the concentrations of crude protein and neutral-detergent fiber, was closely related to grass control.

scholarly journals Chemical composition, ensiling characteristics and ruminal degradability of forage soybean cultivars

2007 ◽  
Vol 87 (4) ◽  
pp. 623-629 ◽  
Author(s):  
A. F. Mustafa ◽  
J. C. F. García ◽  
P. Seguin ◽  
O. Marois-Mainguy
Keyword(s):  
Chemical Composition ◽  
Crude Protein ◽  
Dry Matter ◽  
Neutral Detergent Fiber ◽  
Acid Detergent Fiber ◽  
Gradual Decline ◽  
Acid Detergent Lignin ◽  
Glycine Max L ◽  
Ruminal Degradability

A study was conducted to determine the effects of forage soybean cultivar on chemical composition, ensiling characteristics, and ruminal degradability of silage. Two cultivars of forage soybean (Kodiak and Mammouth) were field-grown, harvested at the R6 stage, and ensiled in mini-silos (n = 3) for 0, 2, 4, 8, 16 and 45 d. Two ruminally fistulated cows were used to determine in situ ruminal nutrient degradabilities of the 45-d silages. Both cultivars went through slow fermentation as indicated by a gradual decline in pH up to day 45 post-ensiling. Lactic acid concentration increased throughout ensiling and was higher for Mammouth than Kodiak except at day 45 post-ensiling. Analysis of the 45-d silages showed that Mammouth contained higher neutral detergent fiber (NDF, 490 vs. 444 g kg-1), acid detergent fiber (371 vs. 353 g kg-1) and acid detergent lignin (81 vs. 64 g kg-1) than Kodiak. However, crude protein (CP) concentration was higher for Kodiak than Mammouth. Mammouth silage had lower buffer soluble protein and higher neutral and acid detergent insoluble protein concentrations than Kodiak silage. Results of the in situ study indicated that Kodiak silage had greater ruminal dry matter (606 vs. 549 g kg-1), CP (828 vs. 752 g kg -1) and NDF (272 vs. 227 g kg-1) degradabilities than Mammouth. It was concluded that chemical composition and ruminal nutrient degradabilities of forage soybean silage were significantly influenced by cultivar. Key words: Soybean [Glycine max (L.) Merill.], silage, ensiling; forage quality, nutrient degradability

scholarly journals Chemical Composition and Digestibility of Six Species of Fodder (Fabaceae)

2021 ◽  
Vol 13 (12) ◽  
Author(s):  
Eliseo Sosa-Montes ◽  
Sergio Iban Mendoza-Pedroza ◽  
Perpetuo Álvarez-Vázquez ◽  
Pablo Alfredo Domínguez-Martínez ◽  
Ricardo Barcena-Gama ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Crude Protein ◽  
Animal Feed ◽  
Neutral Detergent Fiber ◽  
In Vitro Digestibility ◽  
Acid Detergent Fiber ◽  
Dry Matter Digestibility ◽  
Acacia Angustissima ◽  
Low Levels

Objectives: To determine the chemical composition and in vitro digestibility of Acacia angustissima, Dalea spp., Desmodium spp., Leucaena leucocephala, Phaseolus vulgaris and Tephrosia vicioides (Fabaceae) fodder species. Design/Methodology/Approach: Crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), crude lignin (CL), cellulose (Cel), hemicellulose (Hcel), cellular content (CC) and in vitro dry matter digestibility (IVDMD) were determined. The design was completely random with three repetitions. The variables were correlated by pairs and the means of the species were compared with Tukey’s test (P<0.05). Results: Dalea spp. had the highest crude protein (17.7%), followed by A. angustissima (15.9%) and L. leucocephala (14.1%). A. angustissima (73.2%), Dalea spp. (74.9%) and P. vulgaris (77.5%) showed the highest IVDMD. L. leucocephala, Tephrosia vicioides and Desmodium spp. showed the lowest values of CP (14.1, 11.8 and 12.3%, respectively) and IVDMD (70.4, 70.2 and 64.9%, respectively). Desmodium spp. showed high levels of NDF (59.2%), ADF (41.4%), CL (17.5%), Cel (29.7%) and Hcel (17.8%) (P?0.05). IVDMD showed positive correlation with CC and negative correlations with NDF, CL, and Hcel (P<0.05). Study Limitations/Implications: Desmodium spp. showed high content of CL and low values of CP and IVDMD, therefore supplements should be added when used in animal feed. Findings/Conclusions: Dalea spp. showed low levels of lignin and high levels of protein and digestibility, making it posible to use as feed for ruminants

scholarly journals Nutritional value of elephant grass genotypes

2017 ◽  
Vol 52 (10) ◽  
pp. 951-955 ◽  
Author(s):  
Paulo Henrique de Souza ◽  
Cristian Faturi ◽  
Luiz Fernando de Souza Rodrigues ◽  
Ednaldo da Silva Filho ◽  
Aníbal Coutinho do Rêgo ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutritional Value ◽  
Nutritive Value ◽  
Neutral Detergent Fiber ◽  
Pennisetum Purpureum ◽  
Elephant Grass ◽  
Acid Detergent Fiber ◽  
Nutritive Values

Abstract: The objective of this work was to assess the nutritive value of four elephant grass (Pennisetum purpureum) genotypes. The chemical composition, intake by sheep, and digestibility of different genotypes (G1, G2, G3, and G4) were evaluated. A dry matter (DM) digestibility assay was performed with total leftovers and feces collected from 20 sheep kept in metabolic cages. G3 had lower DM intake in grams per animal per day compared with G1 and G2, and it had greater digestibility, crude protein, neutral detergent fiber, and acid detergent fiber values. G1, G2, and G4 have the best nutritive values among the evaluated genotypes.

scholarly journals Biofertilizante na qualidade nutricional da alfafa (Medicago sativa L.)

2016 ◽  
Vol 37 (3) ◽  
pp. 1441
Author(s):  
Rodrigo Luis Lemes ◽  
Cecilio Viega Soares Filho ◽  
Manoel Garcia Neto ◽  
Reges Heinrichs
Keyword(s):  
Medicago Sativa ◽  
Crude Protein ◽  
Nutritional Composition ◽  
Neutral Detergent Fiber ◽  
Acid Detergent Fiber ◽  
Calcium Magnesium ◽  
Medicago Sativa L ◽  
Positive Results ◽  
Long Term Studies

The objective of this study was to evaluate the response of alfalfa (Medicago sativa L.) in the nutritional composition to the application of biofertilizers. The experiment was conducted with increasing doses of biofertilizers in a greenhouse at the Faculty of Veterinary Medicine / UNESP, Araçatuba - Sao Paulo, Brazil, from April to October 2010. The experimental design was completely randomized with six biofertilizer doses from cattle manure (0, 25, 50, 100, 200, and 400 m3 ha-1) and five replications. Cuts were performed, on average, every 27 days, 10 cm above the ground when 10% of the plants were flowering. Biofertilization had a positive significant impact on foliar nitrogen, potassium, calcium, magnesium, sulfur, and shoot iron concentrations. The values of crude protein, acid detergent fiber, and neutral detergent fiber did not differ between doses of biofertilizers. Biofertilization is a viable alternative for nutrition of this species, showing positive results in the nutritional composition of alfalfa. However, but long-term studies are necessary to assess the environmental impact of these fertilizers.

scholarly journals Evaluation of thermo-mechanical and microbial-facilitated processing on the chemical composition of soybean meal

2021 ◽  
Vol 902 (1) ◽  
pp. 012026
Author(s):  
W P S Suprayogi ◽  
A Ratriyanto ◽  
N Akhirini ◽  
R F Hadi ◽  
W Setyono ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Soybean Meal ◽  
Crude Protein ◽  
Neutral Detergent Fiber ◽  
Acid Detergent Fiber ◽  
Conditioning Treatment ◽  
Significant Difference ◽  
Fiber Fractions ◽  
Heating Treatment ◽  
Fungal Inoculation

Abstract A laboratory experiment was conducted to examine the effects of microbial fermentation using Bacillus subtilis and Aspergillus oryzae on the chemical composition of a commercial soybean meal (SBM). Five quadruplicate samples of SBM were subjected to four treatments with one batch serves as a control. The treatments were steam conditioning treatment (P1) where the other three groups were further fermented with B. subtilis (P2), A. oryzae (P3), and the combination of B. subtilis + A. oryzae (P4). The results showed that bacterial and fungal inoculation increased crude protein (CP) content when compared to control (p<0.05). In addition, fiber fractions including neutral detergent fiber (NDF) and acid detergent fiber (ADF) were concomitantly decreased with fermentation (p<0.05). In this study, no significant difference was observed on CP and NDF content with heating treatment (P1, p>0.05). However, this treatment decreased ADF content (p<0.05). Ether extract (EE), ash, non-fibrous carbohydrates (NFC), and total phosphorus contents were not affected by the treatments. To conclude, fermentation either with bacterial or fungal inoculants was effective to improve the chemical composition of SBM as indicated by increasing CP and decreasing fiber contents of SBM.

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