Zhang Qinwen. Conserving and improving soil as the fundamental measures for the high and stable yield of agriculture[J]. Bulletin of Soiland Water Conservation, 1988, 7(3): 20-24.
Zhang Qinwen. Conserving and improving soil as the fundamental measures for the high and stable yield of agriculture[J]. Bulletin of Soiland Water Conservation, 1988, 7(3): 20-24.DOI:
The poorness of soil is one of the major causes that make the agricultural yield of northern China backward anal natural disasters frequetly
which is produced from the given natural conditions of northern China
haring an ageold history origin
Our forefathers also damaged the ecological eniironment of the base when they made great contributions to the development of world agricutare and the civilization of mankind on the precious land,now the scenary is with serious soil loss
vertical and hor izontal gullles
broclcen farmland and poor soil.It is suggested thatthrough comprehensive harness of soil conservation we improve soil
establish farming system to use and cultivate land
and make the soil more fertile as it is farmed to ensure high and stable yield permanently