|
|
|
Registros recuperados: 11 | |
|
|
Lehrsch, G.A.; Brown, B.; Lentz, R.D.; Johnson-Maynard, J.L.; Leytem, A.B.. |
To maximize recoverable sucrose from sugarbeet (Beta vulgaris L.), producers must effectively manage added nitrogen (N), whether it be from urea or organic sources such as manure or composted manure. Our multi-site study’s objective was to determine the effects of a one-time application of stockpiled and composted dairy cattle manure on sugarbeet N uptake, N recovery (NR) and N use efficiency (NUE). First-year treatments at Site 1 included a control (no N), urea (202 kg N/ha), compost (218 and 435 kg estimated available N/ha), and manure (140 and 280 kg available N/ha). Site 2 treatments were a control, urea (82 kg N/ha), compost (81 and 183 kg available N/ha), and manure (173 and 340 kg available N/ha). Compost and manure were incorporated into two... |
Tipo: Article |
Palavras-chave: Sugarbeet; Application guidelines; Manure. |
Ano: 2015 |
URL: http://eprints.nwisrl.ars.usda.gov/1600/1/1558.pdf |
| |
|
| |
|
|
Moore, A.; Satterwhite , Megan; Lehrsch, G.A.; McGeehan, S. |
Dairy manure applications can potentially improve soil health by adding organic matter (OM) to the soil. However, intensive dairy manure applications can cause salt accumulations on arid, irrigated soils, impairing soil health, which can reduce crop growth and yield. Soil organic matter, a major contributor to soil health, increased by 0.02% for every ton of manure-derived organic matter applied. While soil OM increases typically improve soil health, salt accumulations from manure applications had antagonistic effects on soil health. As manure application rates and frequencies increased, soil properties became increasingly saline-sodic, as indicated by elevated EC and SAR values. Aggregate stability also decreased at the heaviest annual manure... |
Tipo: Conference or Workshop Item |
Palavras-chave: Application guidelines; Chemistry; Manure. |
Ano: 2016 |
URL: http://eprints.nwisrl.ars.usda.gov/1619/1/1576.pdf |
| |
|
|
Moore, Amber; Ippolito, J.A.. |
Applying dairy manure to agricultural fields has been shown to increase crop yields, improve the water-holding capacity of the soil, and enhance soil fertility. However, when manures are applied to fields at high rates over a period of several years, nutrients can accumulate, causing eutrophication in drainage waterways; degradation of drinking water; nutrient toxicities in plants; nutrient deficiencies in plants; disruptions in soil microbial populations; and nutritional imbalances for grazing animals. Growersand dairy producers also run the risk of violating state and federal regulations designed toavoid these issues. |
Tipo: Article |
Palavras-chave: Manure; Application guidelines. |
Ano: 2009 |
URL: http://eprints.nwisrl.ars.usda.gov/1321/1/1298.pdf |
| |
|
|
Tarkalson, D.D.; Bjorneberg, D.L.; Hines, Steve. |
Funding is being sought from multiple sources to update nitrogen fertilizer recommendations for irrigated corn in southern Idaho and southwest Oregon. This paper summarizes the justifications and main objectives of this proposed research. Nitrogen needs to be correctly managed in corn production systems to optimize economic returns and to protect the environment. The fertilizer nitrogen recommendations for irrigated field corn in Idaho and other parts of the Pacific need to be re-evaluated because: (1) University of Idaho (U of I) and PNW region recommendations are based on sparse research data; (2) Recommendation are based on research data that is over 25 years old; (3) Corn production area and yield have increased dramatically in concentrated areas due... |
Tipo: Conference or Workshop Item |
Palavras-chave: Application guidelines; Corn; Manure; Nitrogen. |
Ano: 2014 |
URL: http://eprints.nwisrl.ars.usda.gov/1555/1/1511.pdf |
| |
|
|
Ippolito, J.A.; Ducey, Tom; Tarkalson, D.D.. |
Copper sulfate foot baths are a management practice used by dairy farms in an effort to control hoof infections. As an unintended consequence, agricultural soils experience Cu accumulation when spent foot baths are disposed of in wastewater lagoons that are utilized for irrigation purposes. We investigated the effect of Cu applications (up to 1000 mg/kg) to a Xeric Haplocalcid (Declo series) and a Typic Calciaquoll (Logan series) on alfalfa (Medicago sativa) growth and Cu concentration, soil total and diethylenetriaminepentaacetic acid (DTPA)-extractable Cu, and the soil microbial community diversity using ribosomal intergenic spacer analysis (RISA). Copper application up to 250 mg/kg did not affect alfalfa growth; above 500 mg/kg alfalfa did not grow.... |
Tipo: Article |
Palavras-chave: Alfalfa; Application guidelines; Chemistry; Manure. |
Ano: 2011 |
URL: http://eprints.nwisrl.ars.usda.gov/1423/1/1393.pdf |
| |
|
|
Leytem, A.B.; Dungan, R.S.. |
livestock operations can potentially affect air quality at local, regional, and even global scales. These pollutants, many of which are generated through various anthropogenic activities, are being increasingly scrutinized by regulatory authorities. Regulation of emissions from livestock production systems will ultimately increase on farm costs, which will then be passed onto consumers. Therefore, it is essential that scientifically based emission factors are developed for on-farm emissions of air quality constituents to improve inventories and assign appropriate reduction targets. To generate a larger database of on-farm emissions, the USDA–ARS created the workgroup Livestock GRACEnet (Greenhouse gas Reduction through Agricultural Carbon Enhancement... |
Tipo: Article |
Palavras-chave: Air Emissions; Application guidelines; Chemistry. |
Ano: 2014 |
URL: http://eprints.nwisrl.ars.usda.gov/1542/1/1499.pdf |
| |
|
| |
|
|
Moore, Amber; Hines, Steve; Brown, B.; Falen, Christi; de Haro Marti, M.E.; Chahine, Mireille; Norell, Rick; Ippolito, J.A.; Parkinson, Stuart; Satterwhite , Megan. |
Growers working with manured soils o� en rely on soil test information when developing nutrient management for their crop, especially when manure application information is unavailable. Nutrient-enriched soils, like manured soils, can trigger nutrient de� ciencies and toxicities due to plant–soil nutrient interactions. � e goal of the study was to determine correlations between soil test and plant tissue nutrient concentrations for irrigated corn silage crops (Zea mays L. subsp. mays) with varying nutrient concentrations unique to dairy manure-enriched calcareous soils. Whole plant and soil samples were collected from 39 cooperator corn silage � elds at harvest over a 2-yr period throughout the Snake River Plain region of southern Idaho. Soils were... |
Tipo: Article |
Palavras-chave: Application guidelines; Calcareous soil; Phosphorous. |
Ano: 2014 |
URL: http://eprints.nwisrl.ars.usda.gov/1514/1/1478.pdf |
| |
|
|
Leytem, A.B.; Dungan, R.S.; Kleinman, P.J.. |
The sustainability of modern manure management is far from certain, with many demonstrating significant limitations from the stand point of efficient use of manure resources and protection of environmental quality and human health. As demonstrated through this review, for manure management to be sustainable, a broad array of issues must be considered and addressed, all in the context of highly competitive modern livestock production systems that largely seek to minimize costs to the consumer. In the past decade there have been major innovations in the areas of land application, manure treatment and processing and in the science of understanding the impact of manure management. As a result, major opportunities exist to improve the components of manure... |
Tipo: Book Section |
Palavras-chave: Application guidelines; Chemistry; Nutrient losses; Soil quality. |
Ano: 2014 |
URL: http://eprints.nwisrl.ars.usda.gov/1589/3/1545.pdf |
| |
|
| |
Registros recuperados: 11 | |
|
|
|