The use of constructed wetlands for purifying pre-treated wastewater is a cost effective technology that has been found to be more appropriate for many developing countries. The technology is also environmentally friendly with the wetlands being habitats for many water birds and other aquatic organisms. This study assessed nutrient removal efficiency of two floating macrophytes (Lemna minor...

To ameliorate the impact of soil phosphorus (P) deficiency on cowpea, use P-based fertilizers is recommended. Plant zinc (Zn) an essential nutrient required by plants in a wide range processes, such as growth hormone production and metabolism. However, negative association between plant Zn content high P application has been reported some crops. There are few reports about relationship cowpea. ...

in order to study impacts of organic manure levels and inoculation with mycorrhiza fungi on growth, quantitative and qualitative yield of hyssop (hyssopus officinalis l.), a field experiment was conducted as factorial based on a randomized complete block design with three replications at the agricultural research station, ferdowsi university of mashhad, during two growing seasons of 2009-2010 a...

In order to investigate the effects of salt stress on biochemical and physiological responses of two cultivars of alfalfa (Medicago sativa L.) namely, Diabolourde and Yazdi, chlorophyll content, growth parameters, and proline contents of roots and shoots, reducing sugars contents of roots and shoots, and membrane injuries of the plant samples were subjected to 0, 100, 150, and 200 mM NaCl treat...

ophiopogon japonicus is a perennial, ornamental foliage plant, whichbelongs to the family liliaceae. it has a high demand in the local andinternational export market due to the presence of glossy white-green stripped lanceolate leaves. improved leaves and plants of o. japonicus will be more popular in the floriculture industry. hence, objective was to investigate the growth responses of o. japo...

abstract in low-input cropping systems, the natural roles of microorganisms in maintaining soil fertility may be more important than conventional system. in order to investigate the effects of plant growth promoting fungi on improvement of growth and development in soybean (cv: jk) an experiment was conducted at the research farm of sari agricultural sciences and natural resources university du...

to evaluate the effects of biological phosphorous, chemical fertilizers and limited irrigation regime on quantitative and qualitative characteristics of two different grain sorghum cultivars (kimiya and speedeh), this experiment was conducted in research farm of college of agriculture, university of tehran during 2009 growing season. the experimental treatments were arranged as split split plot...