%A 王景秀 %T 农科教结合与农技推广 %0 Journal Article %D 1994 %J 科技进步与对策 %R %P 41-42 %V 11 %N 1 %U {http://www.kjjb.org/CN/abstract/article_13096.shtml} %8 1994-01-20 %X