Changes in some soil physical properties and plant growth as affected by again rotating the paper residue in soil

Abstract

A field experiment in Haditha city (240 km west Baghdad) achieved, the objective of this research to test application levels from the residue paper when again rotating the residue paper in soil in some soil physical properties and its effect in growth and yield of Okra.. The residue paper applies to soil with 0%, 0.75%, 1.5% and 3% from weight dry soil. The treatment distributed on the experimental unites by randomized complete block design in three replicated. Mean weight diameter bulk density, resistance of soil penetration, water infiltration, seed emergence, and the space afforded for the okra plant, and the yield for green pods ware measured, the important results can be summarized as follows: 1- The residue paper increase in mean weight diameter that is increased with all application levels compared with control and on, and increasing a large size aggregate can be stability in water. Also resistance of soil penetration decreased with all levels. On the other hand .All treatments study increased accumulative infiltration as compared with control. 3- There was an increasing in seed emergence as compared with control and All treatments study increased the radius cover by vegetative for the okra plant. Whereas significant increasing the yield for green pods by 75.8%, 45.6% and 57.5% for levels 0.75%, 1.5% and 3% from the residue paper respectively.