Application Basic Studies Of Urban Refuse Rude Compost And Resuming And Rebuilding On Degradation Ecosystem

Application of Urban Refuse Rude Compost (URRC) to scrap sandpit soil and saline-alkali field could help to solve municipalities' problems related to the increasing production of waste only if soil property improvement and environmental conservation can be demonstrated.This study thus aimed to detect the effects of four compost levels on soil bulk density, porosity, containing water, mechanical composition, and crop (corn, oil-sunflower, alfalfa and Neinong No.1) individual plant properties and yield. Two plots experiment were carried out on a crap sandpit and saline-alkali field in Inner Mongolia. Forty-eight plots (30m2 each) were designed for soil and crop in crap sandpit soil. A plot experiment was carried out on a crap sandpit in Inner Mongolia. It included an untreated control (0t/hm2) and three treatments with compost application (75,150 and 225t/hm2) in three replications arranged in a fully randomized block design. One hundred and twenty plots (30m2 each) were designed for soil and crop in saline-alkali field. A plot experiment was carried out on a crap sandpit in Inner Mongolia. It included an untreated control (0t/hm2) and three treatments with compost application (75,150 and 225t/hm2) and irrigation application (0time, 1time, 2times, 3times) in three replications arranged in a fully randomized block design too. Irrigation time is 15,June,15, July and 10,August, and every time irrigation 750t/hm2.I In scrap sandpit soil bulk density reduction due to refuse rude compost ranged between1.31±0.09g/cm3and 1.42±0.10g/cm3during seasons, This effect was evident in 225t/hm2 and 150t/hm2 plot, while soil porosity was increased between 46.42±3.94% and 50.57±3.36%. Soil containing water was improved. Soil aggregate stability reduced. The crap sandpit of mechanical composition, measured on four ranges, by 0~0.1mm, 0.1~0.25mm, 0.25~1.0mm, 1.0~2.0mm, then<1.0mm diameter soil progressively increased. In saline-alkali field bulk density reduction due to URRC ranged between1.02g/cm3and1.27g/cm3during seasons. Soil porosity was increased between 53.58% and 61.51%. Soil containing water was improved. Soil aggregate stability reduced. The crap sandpit of mechanical composition, measured on four ranges, by 0~0.1mm, 0.1~0.25mm, 0.25~1.0mm, 1.0~2.0mm, then<1.0mm diameter soil progressively increased.II Through the high organic matter content of compost in scrap sandpit soil and saline-alkali field, the total N, P and K content of the soil remained unchanged in the untreated control, whereas it increased in the compost treatments. In the treatments, Available N, P and K contents increased in all compost treatments. In general, the chemical properties of the soil were influenced despite applying compost in scrap sandpit soil and saline-alkali field. The organic matter content and higher total and water-soluble salt content of the soil indicate increase in all compost.III In scrap sandpit soil, sowing before, soil microbial biomasses are significantly...