in a country like iran, where soil organic matter is less than 1% and in most cases even less than 0.5 %, municipal solid waste (msw) is a permanent and inexpensive source of organic matter. various experiments have indicated that applications of compost improve plant health, yield and nutritional quality. however, the quality of the compost determines the growth and the development of plants. ...

Soil organic C content, a major source of system stability in agroecosystems, is controlled by many factors that have complex interactions. The purpose of this study was to evaluate the major controls over soil organic carbon content, and to predict regional patterns of carbon in range and cultivated soils. We obtained pedon and climate data for 500 rangeland and 300 cultivated soils in the U.S...

For the sustainable use of soils formed on volcanic parent material, their characteristics should be determined and management measures applied accordingly. The aim this study is to determine some physical erodibility agricultural located between east Erciyes Mountain Tomarza district. A total 58 surface soil samples (0-30 cm) were taken from area. Soil analysed according widely used analysis m...

The effect of poultry waste application on physicochemical and biological properties of sandy clay loam soil was investigated on a 7m X 7m plot of land. Plot was divided into four portions and 7.5kg each of broiler, cockerel and layers waste was applied to plot A, B, and C in slurry form while plot D was used as control(no application) for eight weeks with two weeks interval. After the fourth a...

This study shows that enhancement of soil fertility along with the yield of chickpea due to nodulation by the Rhizobium is possible to some extent. Data on plant height (cm) at maturity, primary branches/plant, days to flower, pods/plant, pod dry weight/plant (g), seeds/pod, seed dry weight/pod (g), 50 seeds weight (g), nodules/plant, fresh weight of nodules/plant and dry weight of nodules/plan...

Soil carbon changes were modelled over 30 years with the focus on cereal crops, since leys are often managed similarly in organic and conventional agriculture. Other crops were not considered due to difficulties in large-scale cropping of oilseed rape and potatoes organically because of pest problems. Four scenarios were used: 0%, 8% (current), 20% and 100% organic cereal production. Conversion...

A-7-6 lateritic soil was treated at British Standard Light (BSL) compaction energy with up to 8% lime content (by dry weight of the soil) at 2% variations and each was admixed with up to 8% rice husk ash (RHA) at 2% variations. Effects of the ash on the soil-lime mixtures were investigated with respect to unconfined compressive strength (UCS) and coefficient of permeability. The UCS of the spec...