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production. These changes include pH, soluble salts, nutrients, and potentially phytotoxic materials, as well as physical properties such as AP and WHC. In this research, we manufactured three container substrates by cocomposting biosolids with three locally

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Several studies have demonstrated the importance of physical, chemical and microbiological properties of compost on Agaricus bisporus growth and yield. However, to our knowledge, no experimentation has been conducted to determine the effect of storage on the properties of spawned compost. For this study, our objective was to compare the properties of spawned compost stored under different temperature regimes. The microflora and, the chemical and physical properties of prespawned compost pressed in shrink wrapped blocks were first determined and mushroom yield evaluated. Subsequently, composts that had been stored at 4°C, 15°C, 24°C for 10 and 14 days were analysed for the same variables. Our results showed that storage temperature affected some properties of compost but these changes did not affect mushroom yield.

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. The dry weight of the roots was not recorded because part of the rooting system had penetrated into the layers used to simulate a green roof system at the bottom of each container. Substrate characteristics. The physical and chemical properties of the

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force some farmers to stockpile, bury, or illegally dump their spent PE mulch. Plastic fragments and additives can accumulate in soil, thus altering soil physical properties, nutrient availability, and microbial activity ( Bandopadhyay et al., 2018

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-of-production. Substrate physical properties and nitrogen immobilization. Samples of each substrate blend (not used for growing plants) were evaluated in the laboratory for percent air and water-filled pore space, dry bulk density, and potential to immobilize fertilizer N

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. Although peat is harvested from several areas worldwide, the quality of sphagnum moss from Canadian peat bogs is considered superior as a result of its high cation exchange capacity and beneficial physical properties. However, it can take decades to renew a

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6 mm in diameter) were found to be the most promising substitutes for rockwool thanks to their low cost and availability in addition to their excellent growth performance. However, the study concluded that, despite adequate soil physical properties

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whole plot, extending at least 3.7 m in all directions. Soil physical and chemical properties were measured before planting in both 2016 and 2017. Each block at each site was sampled, for a total of three samples per whole plot. Soil chemical properties

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Abstract

Proper management of organic wastes such as crop residues, animal manures, and sewage sludges on land is essential for protecting agricultural soils from wind and water erosion, and for preventing nutrient losses through runoff. Efficient and effective use of these materials also provides one of the best means we have for maintaining soil productivity 2 by recycling plant nutrients and by improving soil physical properties. The beneficial effects of organic wastes on soil physical properties are widely known (1, 21) as evidenced by increased water infiltration, water-holding capacity, water content, aeration and permeability, soil aggregation and rooting depth, by decreased soil crusting and runoff, and by lower bulk density.

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The present study was carried out during 1984/85 and 1985/86 to investigate the effect of four gibberellin acid concentrations (0.0, 25, 50, and 75 ppm) and five micronutrients treatments (no micro nutrients, copper, zinc, manganese and the three nutrients together) as well as the combination between them on the yield of Mindy banana plants and fruit physical and chemical properties. Under the conditions of this experiment the results indicated that the treatments contained gibberellin acid at 50 or 75 ppm and mixture of copper, zinc, and manganese significantly increased the yield of Mindy banana plants and improved fruit physical properties; however, fruit chemical constituents were somewhat inferior.

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