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| Registros recuperados: 32 | |
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| James, D.W.; Leggett, G.E.; Dow, A.I.. |
| To facilitate irrigation in central Washington, land is leveled or smoothed on a broad scale. As a result, the calcareous and extremely infertile subsoils are exposed and used directly as a medium for plant growth. Phosphorus fertilizer requirements of exposed subsoils were determined by measuring crop yield and P uptake on plots that were fertilized in the current and one, two or three preceding seasons. Annual crops used as indicators of P availability at three sites were field beans, Sudangrass and sugar beets. A supplementary experiment involved fertilization of a previously established alfalfa crop. Crop growth and P uptake results were correlated with sodium bicarbonate soil testing |
| Tipo: Technical Bulletin |
Palavras-chave: Calcareous soil; Fertility; Phosphorous; Mass Import - autoclassified (may be erroneous). |
| Ano: 1967 |
URL: http://eprints.nwisrl.ars.usda.gov/1133/1/105.pdf |
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| Lentz, R.D.; Ippolito, J.A.; Spokas, K.A.. |
| Amending soil with biochar may be a means of sequestering atmospheric CO2 and improving soil quality, but few multiyear field studies have examined the impacts of a one-time biochar application in an irrigated, calcareous soil. We fall-applied four treatments: dairy manure (18.7 tons/ac dry wt.); hardwood-derived biochar (10 tons/ac dry wt.); combined biochar and manure; and no amendments (control). We measured net N-mineralization using buried soil bags and soil greenhouse gas emissions (CO2, CH4, and N2O) from late spring to fall, corn silage yields, and crop N uptake each year. The influence of biochar and manure on silage yield changed with time after application in fall 2008. Biochar increased corn yields slightly (5%) in 2009, decreased yields by 14%... |
| Tipo: Article |
Palavras-chave: Agricultural Soils; Manure Management; Calcareous soil; Soil quality; Soil. |
| Ano: 2015 |
URL: http://eprints.nwisrl.ars.usda.gov/1584/1/1540.pdf |
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| Leytem, A.B.; Bjorneberg, D.L.. |
| Intensification of the dairy industry in southern Idaho had led to the over-application of manures and a buildup of soil phosphorus (P) which is a potential threat to water quality in the region. As the use of alum has been shown to reduce both soluble manure P and runoff P from alum treated manures, the objective of this study was to determine if surface applications of alum to dairy manure and compost prior to soil incorporation would reduce P losses under furrow irrigation on a calcareous soil. The effects of manure, compost, and fertilizer application with and without alum treatment on soil P, runoff P and aluminum (Al) under furrow irrigation, crop yield, tissue P concentrations and P removal over a four year period were investigated in Kimberly, ID,... |
| Tipo: Article |
Palavras-chave: Manure; Calcareous soil; Phosphorous. |
| Ano: 2009 |
URL: http://eprints.nwisrl.ars.usda.gov/1432/1/1332.pdf |
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| Lentz, R.D.; Ippolito, J.A.. |
| When added to soils, carbon-rich biochar derived from the pyrolysis of woody materials can sequester atmospheric carbon dioxide, mitigate climate change, and potentially increase crop productivity. However, research is needed to confirm the suitability and sustainability of biochar application to different soils. We applied four treatments (dry wt.) to an irrigated calcareous soil in Nov. 2008: control; stockpiled dairy manure, 18.8 Mg/ha; hardwood-derived biochar, 22.4 Mg/ha; and manure + biochar using previous rates. Nitrogen fertilizer was applied when needed (based on pre-season soil test N and crop requirements) in all plots and years with N mineralized from added manure included in this determination. Available soil nutrients (NH4-N, NO3-N, Olsen... |
| Tipo: Article |
Palavras-chave: Corn / maize; Manure; Calcareous soil; Soil. |
| Ano: 2012 |
URL: http://eprints.nwisrl.ars.usda.gov/1459/1/1424.pdf |
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| Nanthita Deeyai; Somchai Anusontpornperm; Irb Kheoruenromne; Wanphen Wiriyakitnateekul. |
| Characteristics of soils along footslope of limestone mountain were studied in farmer field used for growing sugarcane in Wangdong subdistrict, Muang district, Kanchanaburi province. There were eight locations selected, comprising lower footslope (ND-1), upper lower footslope (ND-2), lower middle footslope (ND-3), middle footslope (ND-4),upper middle footslope (ND-5), erosional lower upper footslope (ND-6), lower upper footslope (ND-7), and upper footslope (ND-8). This study aimed at investigating the relationship of soil characteristics and their position on footslope. Soil morphological, physical and chemical properties were examined and analyzed based on standard methods. All soils studied were classified as Aquic Haplustalf (ND-6), Inceptic Haplustalf... |
| Tipo: Collection |
Palavras-chave: Toposequence; Soil characteristics; Calcareous soil; อ้อย; สมบัติทางเคมีและกายภาพของดิน; ดินเนื้อปูน; ลำดับภูมิประเทศ; แปลงปลูกอ้อย; จ.กาญจนบุรี. |
| Ano: 2012 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5284 |
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| Sotomayor,Carlos; Ruiz,Rafael; Castro,Jorge. |
| Iron deficiency is a major problem that affects many fruit crops grown on calcareous soils. A four-year study was conducted to evaluate the effect of calcareous soils on the vegetative growth and productivity of six peach rootstocks (Nemaguard, Atlas, MRS 2/5, Cadaman, GF 677 and GxN15) grafted with 'Ruby Diamond' nectarines. Trees were planted in 100 L containers filled with a sandy loam textured, calcareous soil (6.3% active calcium carbonate) with a pH of 8.0 and an intermediate level of available iron (5 mg kg-1 of Fe+2). The trunk diameter during the 4th growing season was larger in GF 677, GN 15, Cadaman and Atlas, whereas Nemaguard and MRS 2/5 showed smaller average values. Cadaman and Atlas presented the highest pruning weight (a measure of... |
| Tipo: Journal article |
Palavras-chave: Calcareous soil; Fe+2; Iron chlorosis; Peach rootstock; SPAD. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202014000300013 |
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| Registros recuperados: 32 | |
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