Title: Water-saving fertilizer-preserving (improved) technology of paving plastic film in deep layer of sand loss (saline) soil
Application Number: 98109056 Application Date: 1998.05.30
Publication Number: 1223067 Publication Date: 1999.07.21
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A01B79/00
Applicant(s) Name: Wang Guowang Address: 732750
Inventor(s) Name:
Attorney & Agent:
Abstract:
     The present invention belongs to the field of agricultural cultivation and soil chemistry. Its key lies in that said invention adopts the method of laying plastic film underground to solve the problems of water leakage, fertilizer leakage and upward salinization of soil. As compared with microirrigation technology, its operation is simple, effect is obvious and feasibility is strong. After the plastic film is laid, in order to solve the problem of that the residue of chemical fertilizer, etc. and harmful substances secreted by crops which can not be discharged can affect the growth of crops, the said invention adopts the measure of drilling the plastic film in the ground or punching the film before it is laid. It can be extensively used for saving water, retaining fertilizer and improving soil in soline-alkaline field, washing land, and drying land, etc.
Time: 24