Direct and residual effects of organic and inorganic fertilizers on soil chemical properties, microbial components and maize yield under long-term crop rotation
Author :
FC Wehner استاد مشاور , AS Claassens استاد راهنما
University :
University oF Pretoria
Grade :
نامعلوم
Major :
PhD )Plant Production and Soil Science(
Number of pages :
0
Publish Date :
2001
Keyword :
inorganic fertilizers , Microbial biomass , soil chemical properties , residual manure , microbial number , C and N inputs , maize yield