General/Mixed Industry Byproducts

Field production of ornamental shrubs often coniferous species, respectively, were monitored for 12 results in significant topsoil removal and degradation of weeks in pot culture in both composite tailings (CTs) and surface soil physical properties. Building soil organic matter tailings sand (TS) materials obtained from the oil sands through compost amendments is one way to ameliorate plant, Syncrude Canada Ltd., Ft. McMurray, Alberta. These effects from topsoil removal in woody ornamentals substrates with low nutrients, organic matter, and waterproduction. We amended field soils with three composts to holding capacities, were amended with different organic evaluate their effects on soil physical properties and shrub materials at different rates. Growth, as assessed by the biomass production. Specifically, we applied either duck volume increment in both substrates, was generally better manure-sawdust (DM), potato cull-sawdust-dairy manure for the first 6 weeks than for the last 6 weeks. Growth was (PC) or paper mill sludge-bark (PMB) composts to a Plano reduced during the last 6 weeks due to nutrient depletion silt loam soil using two application methods: 2.5 cm of over time in these impoverished substrates. Overall, for compost incorporated into the top 15 cm of soil both substrates, the mineral fertilizer, 20%, 40% and 60% (incorporated-only) or 2.5 cm of compost incorporated plus peat were the best amendments treatments for poplar 2.5 cm of compost applied over the soil surface (mulched). clones with NM-6 being the most productive clone. For We grew three shrub species from liners: Spiraea japonica coniferous species, 20% and 40% pulp or peat appear to 'Gumball', Juniper chinensis 'Pfitzeriana', and Berberis be the best amendment treatments, with lodgepole pine thunbergia 'Atropurpurea'. Shrub species and soil being the most productive species. The inflexion point of amendment treatments were established in triplicate in a the regression functions were found around 30% rate of the randomized split plot design. Total soil carbon (TC), bulk amendment materials. The results also indicated that peat density ( rho b), aggregate stability, soil moisture retention and pulp waste were the best amendment treatments for capacity (MRC), volumetric moisture content ( theta < both hybrid poplars and coniferous species whereas the sub>v), and saturated hydraulic conductivity (K< agriboost and mix (combination of pulp waste and fly ash) sub>sat) were measured over three years (1998 to were the worst. 2000). We measured above and below ground shrub dry Reproduced with permission from the CAB Abstracts matter production at the end of the first (1998) and second database. (1999) growing seasons. Mulched treatments resulted in 15%-21% higher TC than the incorporated-only and no1323. Effect of different organic materials with fly ash amendment control treatments. Bulk density decreased in integrated plant nutrient system for groundnut with increasing TC contents. Greater aggregate stability (Arachis hypogaea). and the formation of larger aggregates were related to Karmakar, S.; Mittra, B. N.; and Ghosh, B. C. increased TC. Field moisture retention capacity tended to Indian Journal of Agronomy 50(2): 152-155. (2005) be higher in the incorporated treatments compared to the NAL Call #: 22 IN235; ISSN: 0537-197X mulched and nonamended control treatments. Compost Descriptors: application date/ crop yield/ dry matter amended treatments increased saturated hydraulic accumulation/ fly ash/ groundnut oil/ groundnuts/ lateritic conductivity (K< sub>sat) sevenfold over the soils/ leaf area index/ nodules/ nutrient uptake/ organic nonamended control. There were no compost effects on amendments/ paper mill sludge/ plant nutrition/ soil shrub biomass until the second year of growth. Barberry chemical properties/ soil types/ yield components/ arachis was the only species to respond significantly and positively oil/ chemical properties of soil/ LAI/ peanut oil/ peanuts to compost application. Specifically, mulched DM compost Abstract: An investigation was carried out during the dry produced 39-42% greater total Barberry biomass than the season (February-May) of 1996 and 1997 in Kharagpur, other compost treatments and the nonamended control. West Bengal, India, to study the effect of paper factory Our findings showed that compost effects on soil physical sludge (PFS) and fly ash (FA) compared with farmyard properties differed among composts and their subsequent manure (FYM) on groundnut (A. hypogaea cv. JL 24) and effects on shrub growth were species specific. to determine their suitable time of incorporation in acid Reproduced with permission from the CAB Abstracts lateritic soils. The PFS and FYM were applied at 15 kg N/ha database. and the FA at 10 t/ha. A recommended and uniform dose of