Effect of Bulking Agent Levels (Rice Straw) on Compost Quality and Net Return
Journal Title: International Journal of Plant & Soil Science - Year 2017, Vol 19, Issue 3
Abstract
Utilization of rice straw through composting are used primarily to increase nutrient availability to plants as well as increased soil microbial biomass and functional diversity. A study was conducted at Bacteriology Lab., Sakha Agricultural Research Station, Kafr El-Sheikh, Egypt to investigate the effect of adding carbonaceous material levels (rice straw bulking agent) on compost quality and net return (L.E ton-1). The results showed that piles temperature increased with time, then gradually decreased till constant at ambient air temperature (ripening feature). The different piles varied in maturity time. The pile number one (without rice straw) firstly matured after 30 days, followed by pile No. two (2 % rice straw), but pile No. five (8 % rice straw) lately matured. All piles showed good chemical and biological characteristics, However, piles No. one and five attained the best characteristics. Pile No. one gave N, P and K concentrations of 2.4, 0.83 and 2.75 % respectively. Pathogenic fecal indicators (Salmonella and Shigella) not found for different piles at all. All piles, also, did not show toxicity, whereas germination % of Eruca sativa seeds ranging from 81.6 to 92.1 %. Economic evaluation of constructed piles exhibited that pile No. one, economically, was the best which gave maximum net profit (171.5 L.E. ton-1) followed by pile No. two (168.5 L.E ton-1) and then pile No. three (4 % rice straw), that showed the lowest net return (164.5 L.E ton-1). Application experiment was conducted for studying the influence of compost microbial enrichment, after maturation, with Plant Growth Promoting Rhizobacteria (PGPR) on Zea mays biological yield and chemical composition. Applying compost of pile No. four and No. five gave the highest biological yield (fresh and dry weight plant-1), and N, P and K content (g shoot-1). PGPR inoculated plants with enriched compost gave the higher growth yield and element concentrations, followed by PGPR inoculated compost (enriched) compared to not inoculated plants. Total chlorophyll and soil dehydrogenase enzyme exhibited highest values at compost addition for piles No. four and No. five either with PGPR inoculated compost or not.
Authors and Affiliations
M. Nour El-Din, Alaa El-Dein Omara, M. H. Elbagory
Keywords
Related Articles
- EP ID EP316295
- DOI 10.9734/IJPSS/2017/36518
- Views 136
- Downloads 0
Investigating the Effects of Atmospheric Gaseous Pollutants on the Vegetation of Nezahat Gökyiğit Botanical Garden in Istanbul, Turkey: A Case Study and Survey
We assessed the effects of gaseous air pollutants on the vegetation of the Nezahat Gökyiğit Botanic Garden in Istanbul, Turkey, based on the physiological responses of common specie Fraxinus angustifolia as it is the mos...
Effects on Water Stress on Daily Stomatal Conductivity of Stevia rebaudiana
Stevia rebaudiana (Bertoni), an herbaceous perennial plant belong to Asteraceae family, is one of the important source of natural sweetening agents with non-calorie that can be used as an alternative to artificial sweete...
Axonopus compressus: A Resilient Phytoremediatior of Waste Engine Oil Contaminated Soil
A phytoremediation study using Axonopus compressus (carpet grass) was carried out on three levels of simulated waste engine oil (WEO) contamination of soil for a period of 12 months. The microorganisms associated with t...
Ambient and Elevated Carbon Dioxide on Growth, Physiological and Nutrient Uptake Parameters of Perennial Leguminous Cover Crops under Low Light Intensities
Adaptability and optimum growth of cover crops in plantation crops is affected by the inherent nature of the cover crop species and the light intensity at canopy levels. Globally concentrations of atmospheric CO2 are inc...
Restorative Potential of Residual Soil Amendments and One-Year Fallow on Top Soil Chemical Properties of a Tropical Ultisol
Quantitative information on the contribution of residuals of soil nutrient management on natural nutrient recovery capacity of soil through fallowing is scanty. To evaluate the contributions, soil samples were collected...