Sheep production, plant growth and nutritive value of a saltbush-based pasture system subject to rotational grazing or set stocking

The aim of this study was to evaluate the effects of plant growth-promoting rhizobacteria effects on anatomical characteristics and nutritional value of Brachiaria (Syn. Urochloa) brizantha cv. BRS Piatã. The experimental design applied was completely randomized design with three treatments: (1) non-inoculated unfertilized-control plants (C-), (2) non-inoculated fertilized-control plants (C+) and (3) B. brizantha inoculated with Pseudomonas fluorescens (BRM-32111) and Burkholderia pyrrocinia (BRM-32113). The following parameters were evaluated at 35 days after seedling emergence: biomass production, plant height, net photosynthesis (A), water-use efficiency (WUE), chlorophyll (SPAD), anatomical and nutritional. The rhizobacteria modified the anatomy of the leaf, culm and roots of B. brizantha. They also increased the chlorophyll content, A, WUE, total soluble carbohydrates, starch and crude protein contents, N, P, Mg and Fe concentrations, plant height, root area and biomass production. Therefore, we conclude that co-inoculation with P. fluorescens (BRM-32111) and B. pyrrocinia (BRM-32113) modified the anatomy and biochemistry of B. brizantha, promoting growth and nutrient accumulation. Therefore, these findings set up the basis for additional exploratory studies, using these rhizobacteria as biotechnological innovation with potential of use as biofertilizer in B. brizantha, aiming higher productivity and nutritive value in a more eco-friendly and sustainable pasture production system.

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Nutritive Value of Pasture. VII. The Influence of the Intensity of Grazing on the Yield, Composition and Nutritive Value of Pasture Herbage (Part III).

The Journal of Agricultural Science ◽

10.1017/s0021859600008686 ◽

1931 ◽

Vol 21 (2) ◽

pp. 267-321 ◽

Cited By ~ 18

Author(s):

H. E. Woodman ◽

D. B. Norman ◽

M. H. French

Keyword(s):

Nutritive Value ◽

Special Significance ◽

Rotational Grazing ◽

Stages Of Growth

The object of this series of investigations is to secure detailed information concerning the composition, digestibility and nutritive value of pasture herbage in its different stages of growth. The results which were obtained in these respects by cutting the herbage of the experimental pasture plot at weekly, fortnightly and 3-weekly intervals have been described in previous communications. During the seasons of the present investigations (1929 and 1930), the trials have been carried a stage further by the adoption of a system of cutting at monthly intervals. The results, therefore, are invested with special significance, in that a period of four weeks has been tentatively adopted in this country as the interval which is allowed to lapse, in rotational grazing practice, between successive grazings of pasture enclosures.

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Forage Mass, Tillering, Nutritive Value and Root System of Ruzigrass Inoculated with Plant Growth Promoting Bacteria Associated with Doses of N-Fertilizer

International Journal for Innovation Education and Research ◽

10.31686/ijier.vol8.iss10.2634 ◽

2020 ◽

Vol 8 (10) ◽

pp. 41-55

Author(s):

Artur Roque Domingues Barreiros ◽

Ulysses Cecato ◽

Camila Fernandes Domingues Duarte ◽

Mariangela Hungria ◽

Thiago Trento Biserra ◽

...

Keyword(s):

Plant Growth ◽

Root System ◽

Nutritive Value ◽

Block Design ◽

N Fertilizer ◽

Neutral Detergent Fiber ◽

In Vitro Digestibility ◽

Plant Growth Promoting Bacteria ◽

Plant Growth Promoting ◽

Growth Promoting

The aim of this study was evaluating the effect of the inoculation of plant growth promoting bacteria (PGPB) in forage mass, tillering, nutritive value and root system of ruzigrass (Urochloa ruziziensis (R. Germ. & Evrard) Crins (syn. of Brachiaria ruziziensis) associated with doses of N-fertilizer. The bacteria inoculated were Azospirillum brasilense Ab-V5, Pseudomonas fluorescens CCTB03 and Pantoea ananatis AMG 521, plus the control treatment (non-inoculated), associated with doses of N-fertilizer (0, 50 and 100 kg N ha-1). The experiment was performed in a randomized block design, in a 4x3 factorial scheme, with four replicates, totaling 48 plots (12 m2). There were no effects of the PGPB and the use of N-fertilizer on the leaf blade, stem+sheath, forage mass, daily and yearly accumulation of forage mass. The PGPB did not have influence on the density of tillers. The doses of 50 and 100 kg of N ha-1 increased the amount of tillers. The AMG 521 strain associated with N-fertilizer provided heavier tillers. There was no effect of the PGPB on crude protein (CP), neutral detergent fiber (NDF), as well as acid detergent fiber (ADF), and in vitro digestibility of the dry matter (IVDDM). The use of 100 kg of N ha-1 contributed to an increase in CP and a decrease in NDF. The AMG 521 strain contributed to a smaller diameter of the root. Strains CCTB03 and AMG 521 demonstrated a smaller area, length and root density when associated with the dose of 50kg of N ha-1. In general, the PGPB were not efficient in promoting productive increments in ruzigrass.

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Mob and rotational grazing influence pasture biomass, nutritive value, and species composition

Agronomy Journal ◽

10.1002/agj2.20215 ◽

2020 ◽

Vol 112 (4) ◽

pp. 2866-2878

Author(s):

Eric D. Billman ◽

Jessica A. Williamson ◽

Kathy J. Soder ◽

Danielle M. Andreen ◽

R. Howard Skinner

Keyword(s):

Species Composition ◽

Nutritive Value ◽

Rotational Grazing

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Tedera proves its value as a summer and autumn feed for sheep in Mediterranean-like climates

Animal Production Science ◽

10.1071/an16432 ◽

2018 ◽

Vol 58 (12) ◽

pp. 2269 ◽

Cited By ~ 3

Author(s):

D. Real ◽

C. M. Oldham ◽

A. van Burgel ◽

E. Dobbe ◽

J. Hardy

Keyword(s):

Western Australia ◽

Farming Systems ◽

Early Summer ◽

Grazing Management ◽

Sheep Grazing ◽

Rotational Grazing ◽

The Third ◽

Continuous Grazing ◽

Condition Score ◽

Sheep Production

Tedera (Bituminaria bituminosa C.H Stirt. vars. albomarginata and crassiuscula) is a traditional forage species for goats in the Canary Islands, Spain. It has agronomic characteristics ideally suited to Mediterranean-like climates that allows it to provide high quality green forage for grazing animals during summer and autumn. It can be used to extend the growing season into late spring and early summer and/or to reduce or eliminate the need for expensive hand feeding of grain and hay to sheep to fill the ‘feed gap’ during the dry season in southern Australian farming systems. Three sheep grazing experiments were carried out with the objective to evaluate sheep production during summer and autumn with tedera as the sole diet. A 3-ha site at Dandaragan, Western Australia was grazed during the summer and autumn of 2014–2015 and 2016 and a 2.4-ha site was grazed at Kojonup, Western Australia during the same period in 2016. At each site, two grazing treatments were evaluated, continuous grazing and rotational grazing with six plots (14 days of grazing and 70 days of recovery). The first hypothesis tested was that tedera plants would not survive continuous grazing during summer and autumn. The second hypothesis tested was that without hand feeding, 10 dry sheep equivalents/ha would be able to at least maintain weight and condition score during summer and autumn. The third hypothesis tested was that rotational grazing would improve the production of the sheep (liveweight and condition score) compared with continuous grazing. The first hypothesis was rejected, the population of tedera plants did not significantly decline due to being continuously grazed during summer and autumn. The second hypothesis was confirmed, at the three experimental sites, 10 dry sheep equivalents/ha were able to at least maintain weight and condition score without any hand feeding. The third hypothesis was partially rejected; continuous grazing had a better performance of the sheep than rotational grazing. However, the rotational grazing plots had more tedera on offer in the remaining grazing plots in the rotation with the potential for a longer grazing time. These three experiments clearly demonstrate that tedera can be used to reduce or eliminate expensive hand feeding during summer and autumn using the simplest and least expensive grazing management; continuous grazing.

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Characterization of auxin production plant growth promotion by a bacterium isolated from button mushroom compost

Journal of Mushrooms ◽

10.14480/jm.2017.15.1.8 ◽

2017 ◽

Vol 15 (1) ◽

pp. 8-13

Author(s):

Ji-Yeong Yoo ◽

Heon-Hak Lee ◽

Chang-Hoon Han ◽

Min-Ho Yoon

Keyword(s):

Plant Growth ◽

Plant Growth Promotion ◽

Growth Promotion ◽

Production Plant ◽

Mushroom Compost ◽

Button Mushroom ◽

Auxin Production

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Divergence of compost extract and bio-organic manure effects on lucerne plant and soil

PeerJ ◽

10.7717/peerj.3775 ◽

2017 ◽

Vol 5 ◽

pp. e3775 ◽

Cited By ~ 3

Author(s):

Haiyan Ren ◽

Jian Hu ◽

Yifei Hu ◽

Gaowen Yang ◽

Yingjun Zhang

Keyword(s):

Plant Growth ◽

Nutritive Value ◽

Plant Biomass ◽

Synergistic Effects ◽

Soil Health ◽

Treatment Plant ◽

Organic Manure ◽

Economic Returns ◽

Rhizobium Inoculation ◽

Compost Extract

AimApplication of organic materials into agricultural systems enhances plant growth and yields, and improves soil fertility and structure. This study aimed to examine the effects of “compost extract (CE)”, a soil conditioner, and bio-organic manure (BOM) on the growth of lucerne (Medicago sativa), and compare the efficiency between BOM (including numbers of microorganisms) and CE (including no added microorganisms).MethodA greenhouse experiment was conducted with four soil amendment treatments (control, BOM, CE and CEBOM), and was arranged in a completely randomized design with 10 replicates for each treatment. Plant biomass, nutritive value and rhizobia efficacy as well as soil characteristics were monitored.ResultCE rather than BOM application showed a positive effect on plant growth and soil properties when compared with the control. Lucerne nodulation responded equally to CE addition and rhizobium inoculation. CE alone and in combination with BOM significantly increased plant growth and soil microbial activities and improved soil structure. The synergistic effects of CE and BOM indicate that applying CE and BOM together could increase their efficiency, leading to higher economic returns and improved soil health. However, CE alone is more effective for legume growth since nodulation was suppressed by nitrogen input from BOM. CE had a higher efficiency than BOM for enriching soil indigenous microorganisms instead of adding microorganisms and favouring plant nodulation.

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Positive and negative effects of nanoparticles on plants and their applications in agriculture

Plant Science Today ◽

10.14719/pst.2019.6.2.502 ◽

2019 ◽

Vol 6 (2) ◽

pp. 232-242 ◽

Cited By ~ 3

Author(s):

Pooja Goswami ◽

Sonali Yadav ◽

Jyoti Mathur

Keyword(s):

Plant Growth ◽

Negative Impact ◽

Plant Protection ◽

Growth Promotion ◽

Chlorophyll Synthesis ◽

Production Plant ◽

Negative Effects ◽

Research Areas ◽

Nano Medicine ◽

Global Food

Nanotechnology is the promising field with its wide applications in biotechnology, pharmaceutical science, drug targeting, nano-medicine and other research areas. This review highlights the positive and negative impact of nanoparticles on plants and its wide applications in agricultural sciences. Effect of NPs in terms of seed germination, growth promotion and enhancement of metabolic rate has been evaluated by several scientific researches. However, NPs also exert their negative effects such as suppression of plant growth, inhibition of chlorophyll synthesis, photosynthetic efficiency etc. Effects of NPs can be either positive or negative it depending upon the plant species and type of nanoparticles used & its concentration. Modern nano-biotechnological tools have a great potential to increase food quality, global food production, plant protection, detection of plant and animal diseases, monitoring of plant growth nano-fertilizers, nano-pesticide, nano-herbicides and nano-fungicides.

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Micro-remediation of chromium contaminated soils

PeerJ ◽

10.7717/peerj.6076 ◽

2018 ◽

Vol 6 ◽

pp. e6076 ◽

Cited By ~ 7

Author(s):

Hadia -e- Fatima ◽

Ambreen Ahmed

Keyword(s):

Plant Growth ◽

Contaminated Soils ◽

Crop Production ◽

Lens Culinaris ◽

Production Plant ◽

Plant Growth Promoting Bacteria ◽

Bacterial Strains ◽

Soil Release ◽

Plant Growth Promoting ◽

Growth Promoting

Bacteria are tiny organisms which are ubiquitously found in the environment. These microscopic living bodies are responsible for the flow of nutrients in biogeochemical cycles and fertility imparted to the soil. Release of excessive chromium in agricultural soils due to rapid growth of industries may result in minimizing the fertility of soil in future, which will lead to reduction in crop production. Plant growth promoting bacteria (PGPB) are beneficial to the environment, some of which can tolerate chromium and protect plants against heavy metal stress. The current study aims to identify such chromium-tolerant auxin-producing rhizobacteria and to investigate their inoculation effects on the growth characteristics of Lens culinaris in chromium polluted soils by using two different chromium salts i.e., K2Cr2O7 and K2CrO4 in varying concentrations (0, 50, 100, 200, 400 and 500 µgml−1). The results revealed that Bacillus species are efficient in significantly reducing the deleterious effects of Cr. These effective bacterial strains were able to stimulate the growth of metal effected plants of Lens culinaris which were grown in chromium contaminated environment. Therefore, these plant growth promoting rhizobacteria PGPRs, having both auxin production potential and chromium-resistance ability, are considered as efficient micro-factories against chromium pollution.

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