Crop productivity.

書目詳細資料
Corporate Authors:	BIOTOL (Project), Open Universiteit (Heerlen, Netherlands), University of Greenwich
格式:	圖書
語言:	English
出版:	Oxford, Boston Butterworth-Heinemann 1994.
叢編:	Biotechnology by Open Learning (Series)
主題:	Agricultural productivity > Programmed instruction. Crop yields > Programmed instruction.