最近，断断续续地读完了科学出版社2000年出版的《中国科学技术史·农学卷》（以下简称《农学卷》，该书由董恺忱、范楚玉主编，首都部分知名农史学者参加编写。全书共四编二十四章，140万字，洋洋大观，堪称巨著。读完以后，浮想联翩，因不忖浅陋，草成这篇读后记，借以同读者 Recently, the Scientific Publishing House published in 2000, “Science and Technology of Agriculture in China Volume” (hereinafter referred to as “Agronomy”, edited by Dong Kaichen, Fan Chuyu, some well-known agricultural historians in the capital to participate in the preparation. Compiled twenty-four chapters, 1.4 million words, ocean view, called a masterpiece .After reading, imagination, because of not shallow, grass into this reading postscript, to be with the reader