Phosphorus sources residual effects on Tifton 85 production and nutritive value cultivated in a tropical weathered soil1

Acid reactions and low available phosphorus in tropical soils limit forage yield. The aim was to evaluate soil chemical characteristics pH, P and Mg, forage nutritive values, critical soil and plant P levels and the residual effect of each source. The experiment was in a greenhouse with a Rhodic Haplustox, loam texture. Experimental design was a 5 x 4 factorial with five replicates which phosphate fertilizers were triple superphosphate, reactive rock phosphates Gafsa and Arad, and fused magnesium phosphate powder and coarse, applied at rates of 30, 60, 90 and 120 mg kg-1 P and a control treatment without P. The effectiveness of rock phosphates increased due to their residual effect. The coarse fused magnesium phosphate resulted in the lowest efficiency. The P critical level in soil and plant were 18 mg kg-1 and 2.4 g kg-1, respectively. The increase of phosphorus rates provided an increase in crude protein content.

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Alfalfa Forage Production and Nutritive Value, Fermentation Characteristics and Hygienic Quality of Ensilage, and Soil Properties after Broiler Litter Amendment

Agronomy ◽

10.3390/agronomy11040701 ◽

2021 ◽

Vol 11 (4) ◽

pp. 701

Author(s):

Annesly Netthisinghe ◽

Paul Woosley ◽

Naomi Rowland ◽

Todd Willian ◽

Becky Gilfillen ◽

...

Keyword(s):

Clostridium Botulinum ◽

Nutritive Value ◽

Animal Health ◽

Forage Yield ◽

Control Treatment ◽

Forage Production ◽

Broiler Litter ◽

Environmentally Safe ◽

Fermentation Quality ◽

High Level

Recycling broiler litter (BL) nutrients is an important strategy for sustainable forage production. However, BL can contain Clostridia bacteria that can contaminate forages at harvest, resulting in poor ensilage quality and botulism-related animal health risks. A better understanding of the effects of BL amendment on alfalfa (Medicago sativa L.) production and ensiling is beneficial for promoting manure-based alfalfa production. This 2-year study examined the effects of high-level BL (HBL) at 112 kg N ha−1 and low-level (LBL) at 56 kg N ha−1 on alfalfa forage production, fermentation characteristics, and Clostridium botulinum concentrations in silage and haylage produced from 350 g dry matter (DM) kg−1 forage and 500 g DM kg−1 forage respectively, and soil characteristics compared to a control treatment (CT). Results showed that the application of BL did not affect forage production (12.8–13.1 MG ha−1) and nutritive value. The alfalfa produced high forage yield with superior ensilabilty in the second year. The BL application increased soil NH4-N, Ca, Fe, and B, but did not affect fermentation characteristics or Clostridium botulinum concentrations in ensilage. Silage had superior fermentation quality, and Clostridium botulinum concentration was found to be higher than in haylage. Broiler litter fertilization for alfalfa is environmentally safe and has forge production, ensilage fermentation quality, and botulism risks similar to CT.

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Response ofSorghum bicolorL. to Residual Phosphate on Two Contrasting Soils Previously Planted to Cowpea or Maize

International Journal of Agronomy ◽

10.1155/2016/4214303 ◽

2016 ◽

Vol 2016 ◽

pp. 1-7

Author(s):

Tola Omolayo Olasunkanmi ◽

Ezekiel Akinkunmi Akinrinde

Keyword(s):

Crop Production ◽

Nutrient Management ◽

Residual Effect ◽

Residual Effects ◽

Negative Effects ◽

Single Superphosphate ◽

Rock Phosphates ◽

Positive Effects ◽

Randomized Design ◽

P Fertilizer

Proper fertilizer nutrient management through adequate utilization of the residual value coupled with healthy crop rotation contributes significantly to sustainable crop production. This study was conducted to evaluate the direct and residual effects of two rock phosphate (RP) materials on two contrasting soils previously planted with either the cereal crop or the leguminous crop. The effectiveness of the RP materials as substitute for the conventional P fertilizers was evaluated using single superphosphate as reference at the Department of Agronomy, University of Ibadan, Ibadan, Nigeria. The experiments were 2 × 2 × 4 factorial in completely randomized design. The test crops in the first cropping performed better on the slightly acidic loamy sand than on the strongly acidic sandy clay loam. Performance of each crop was improved by P supply in the first and second cropping. Single superphosphate proved to be more efficient than the RPs in the first cropping but not as effective as MRP in the second cropping. In the second cropping, sorghum performed better on the soil previously cropped to cowpea while Morocco RP had the highest residual effect among the P-fertilizer sources. It is evident that rock phosphates are better substitutes to the conventional phosphorus fertilizers due to their long term residual effect in soils. The positive effects of healthy rotation of crops as well as the negative effects of low soil pH are also quite obvious.

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Influence of green manuring and organic sources of nutrient application on scented rice (Oryza sativa) - linseed (Linum usitatissimum) cropping system

Indian Journal of Agricultural Research ◽

10.18805/ijare.a-5006 ◽

2018 ◽

Author(s):

K. Thakuria ◽

C. Thakuria

Keyword(s):

Residual Effect ◽

Cropping System ◽

Residual Effects ◽

Control Treatment ◽

Yield Attributes ◽

Nutrient Contents ◽

Green Manuring ◽

Effect On Yield ◽

Major Nutrients ◽

And Control

A field experiment was carried out during kharif, 2012 to summer, 2013 under rainfed condition in the organic block of Assam Agricultural University, Jorhat to find out the effect of different green manuring practices and other organic sources of nutrient on productivity of scented (joha) rice and their residual effect on linseed crop. Results revealed that though green manuring practice had no significant effect on yield and yield attributes of both scented (joha) rice and succeeding relayed linseed crop but higher values were recorded with the incorporation of dhaincha as in-situ green manuring in respect of all the yield attributes and yield of both the main and succeeding crops. Among various organic sources of nutrient, application of enriched compost produced the highest yield in both scented rice as well as linseed crop. The increase in grain yield of scented rice with enriched compost over the other sources of organic nutrient and control treatment ranged from 7.33 to 30.04 per cent. The corresponding increase in case of linseed crop ranged from 29.1 to 39.8 per cent which reflected better residual effects of both the sources of nutrient on linseed crop. The residual available nutrient contents in soil after harvest of linseed crop showed similar trends and increased all the major nutrients over their initial status.

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Residual effects of corncob biochar on tropical degraded soil in central Uganda

ENVIRONMENTAL SYSTEMS RESEARCH ◽

10.1186/s40068-021-00235-3 ◽

2021 ◽

Vol 10 (1) ◽

Author(s):

Samuel Obeng Apori ◽

John Byalebeka ◽

Gideon Kalii Muli

Keyword(s):

Soil Ph ◽

Chemical Properties ◽

Residual Effect ◽

Tropical Soil ◽

Sub Saharan Africa ◽

Residual Effects ◽

Available Phosphorus ◽

Total Biomass ◽

Research Attention ◽

Npk Fertilizer

Abstract Background The residual effects of biochar are yet to receive adequate research attention in Sub-Saharan Africa despite the assumption that the positive effect of biochar may last longer on degraded tropical soil. Hence a field experiment was conducted to assess the residual effects of biochar, farmyard compost and NPK fertilizer applications on a Ferralsol in central Uganda. The field used for the study was previously used to conduct experiments for two seasons to assess the contribution of corncob biochar to the chemical properties of this highly degraded tropical soil. Result The co-applied biochar with compost and NPK fertilizer significantly (p < 0.05) increased some soil chemical properties such as soil pH, available phosphorus, soil organic carbon, and potassium than the control. The co-applied biochar with compost also significantly (p < 0.05) increased the soil pH and effective cation exchange capacity compared to the solely applied compost and NPK fertilizer. Collard plant height, canopy, stem girth, number of leaves, leaf length, and total biomass were significantly (p < 0.05) higher in the biochar amended soil than the unamended soil. Conclusion It was concluded that the addition of biochar with compost and NPK fertilizer had a significant residual effect on degraded tropical soils than solely applied NPK and compost.

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Seeding Rate Effects on Forage Mass and Vegetation Dynamics of Cool-Season Grass Sod Interseeded with Sorghum-Sudangrass

Agronomy ◽

10.3390/agronomy11122449 ◽

2021 ◽

Vol 11 (12) ◽

pp. 2449

Author(s):

John A. Guretzky ◽

Daren D. Redfearn

Keyword(s):

Vegetation Dynamics ◽

Nutritive Value ◽

Perennial Grass ◽

Warm Season ◽

Residual Effects ◽

Control Treatment ◽

Seeding Rate ◽

Cool Season ◽

Sorghum Sudangrass ◽

Cool Season Grass

Interseeding annual warm-season grasses into perennial cool-season grasses has the potential to increase summer forage mass and nutritive value. Knowledge of how seeding rate affects annual warm-season grass establishment, forage mass, and vegetation dynamics remains limited. From 2016–2017, we conducted a field experiment evaluating the effects of seeding rates on sorghum-sudangrass (Sorghum bicolor × S. bicolor var. sudanense) density and forage mass and on the frequency of occurrence of plant species in cool-season grass sod in Lincoln, NE. The experiment had a completely randomized design consisting of six replicates of four seeding rates [0, 14, 28, and 35 kg pure live seed (PLS) ha−1] in sod mowed at a 2.5-cm height and one unseeded, non-mowed control treatment. Sorghum-sudangrass establishment increased with seeding rate from an average of 20 to 45 plants m−2 as the seeding rate increased from 14 to 35 kg PLS ha−1. Forage mass depended on a seeding rate × harvest interaction, showing positive linear and cubic responses to seeding rate in consecutive harvests at 45 and 90 d after interseeding. To increase forage mass in perennial cool-season grass sod, producers should interseed sorghum-sudangrass with at least 28 kg PLS ha−1. One-time seedings into cool-season, perennial grass sod have no residual effects on subsequent forage mass and vegetation dynamics.

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ALTERNATIVE PHOSPHATIC FERTILISERS FOR HILL COUNTRY

Proceedings of the New Zealand Grassland Association ◽

10.33584/jnzg.1984.45.1681 ◽

1984 ◽

pp. 107-115

Author(s):

N.S. Percival ◽

M.B. O'Connor ◽

J.P. Every ◽

S.S.S. Rajan

Keyword(s):

North Carolina ◽

Rock Phosphate ◽

Residual Effects ◽

Agronomic Effectiveness ◽

Single Superphosphate ◽

Rock Phosphates ◽

Hill Country ◽

Phosphorus Sources ◽

Second Year

The role of alternative phosphorus sources to single superphosphate as a maintenance fertiliser for hill country was evaluated in five experiments between 1986 1982. The experiments were located at Gisborne, Rotorua and Te Kuiti. Reactive rock phosphate-sulphur granules (previously known as biosuper) were as effective as superphosphate in the year of application, but the reactive rock phosphates applied alone were as effective on only two of the sites. Superphosphate/reactive rock mixtures were less effective than superphosphate. While most fertilisers had substantial residual effects in the second year after application there was no clear pattern between materials. When taken over two years, a single biennial application of all fertilisers was at least as effective as two annual dressings at half the rate. The role of alternative phosphorus fertilisers is discussed in terms of their cost and agronomic effectiveness, the requirements for other elements,and the structure of the present fertiliser industry. Keywords: superphosphate, phosphorus, phosphatic fertilisers, biosuper, hill country, Sechura, North Carolina, Jordan.

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Forage Yield, Nutritive Value, and Grazing Tolerance of Dallisgrass Biotypes

Crop Science ◽

10.2135/cropsci2003.0295 ◽

2003 ◽

Vol 43 (1) ◽

pp. 295 ◽

Cited By ~ 4

Author(s):

B. C. Venuto ◽

B. L. Burson ◽

M. A. Hussey ◽

D. D. Redfearn ◽

W. E. Wyatt ◽

...

Keyword(s):

Nutritive Value ◽

Forage Yield ◽

Grazing Tolerance

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Evaluation of Soft Red Winter Wheat Forage Yield, Nutritive Value and Tetany Hazard as Influenced by Sampling Date and Nitrogen Fertilization

Journal of Applied Animal Research ◽

10.1080/09712119.2007.9706836 ◽

2007 ◽

Vol 32 (1) ◽

pp. 1-6

Author(s):

Clayton R. Bailey ◽

Lathan B. Daniels ◽

Wayne K. Coblentz ◽

Elizabeth B. Kegley ◽

Levi J. McBeth ◽

...

Keyword(s):

Winter Wheat ◽

Nitrogen Fertilization ◽

Nutritive Value ◽

Forage Yield ◽

Soft Red Winter Wheat ◽

Red Winter Wheat

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111 Metsulfuron and variable nitrogen application rates on infected tall fescue: effects on stocker performance, forage yield, nutritive value, ergovaline concentration and botanical composition

Journal of Animal Science ◽

10.1093/jas/skz397.070 ◽

2020 ◽

Vol 98 (Supplement_2) ◽

pp. 31-31

Author(s):

Kevin R Meng ◽

Eric Bailey ◽

Josh Zeltwanger ◽

Hannah Allen ◽

Mikaela Adams ◽

...

Keyword(s):

Species Composition ◽

Tall Fescue ◽

Nutritive Value ◽

Ergot Alkaloids ◽

Fertilization Rate ◽

Forage Yield ◽

Nitrogen Application ◽

Forage Production ◽

Seed Head ◽

Application Rates

Abstract Chemical seed-head suppression of endophyte infected tall fescue (Lolium arundinaceum) improves stocker cattle performance but may decrease forage yield. Spring nitrogen application increases tall fescue growth with a concomitant increase in ergot alkaloids, produced by the symbiotic endophyte Epichloë coenophiala. We hypothesized that greater amounts of nitrogen applied to tall fescue would increase forage yield and offset losses in forage production from chemical suppression of seed-heads with metsulfuron without effect on alkaloid concentration. Ninety-six steers (270 ± 20 kg) were randomly assigned to one of sixteen paddocks (1.8 ha) on April 18 and continuously grazed for 57 d. Paddocks were blocked by previous use (n = 4) and randomly assigned to one of four treatments; no metsulfuron, no nitrogen (NEGCON), metsulfuron with 0 (MET0), 67 (MET67), or 134 (MET134) kg/ha of ammonium nitrate, applied March 11. Steers grazing MET0 paddocks were removed 17 d early due to insufficient forage availability. Steer weight, forage yield, forage nutritive value and ergot alkaloids in forage samples were measured monthly. Seed-head frequency and species composition were determined in June. Metsulfuron application reduced (P < 0.01) tall fescue seed-heads by 80%. Metsulfuron decreased (P = 0.03) ergovaline but ergovaline increased (P < 0.01) at each monthly sampling across treatments. Nitrogen had no impact on ergovaline concentration (P = 0.50). Forage yield tended to be least (P = 0.07) for MET0, intermediate for NEGCON and MET67, and tended to be greatest for MET134 (P = 0.08). Steer ADG was not affected by treatment (P < 0.80). Metsulfuron decreased NDF (P=0.02) regardless of fertilization rate. Forage CP increased with fertilization (P < 0.01) and no differences were detected between NEGCON and MET0 (P = 0.45). Species composition was not impacted (P >0.07) by treatment. Metsulfuron decreased seed-head growth and ergovaline concentration in tall fescue. Additional nitrogen fertilizer ameliorated forage yield lost to metsulfuron application but did not impact steer gain.

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