Crop productivity.

Bibliografiska uppgifter
Institutionella upphovsmän:	BIOTOL (Project), Open Universiteit (Heerlen, Netherlands), University of Greenwich
Materialtyp:	Bok
Språk:	English
Publicerad:	Oxford, Boston Butterworth-Heinemann 1994.
Serie:	Biotechnology by Open Learning (Series)
Ämnen:	Agricultural productivity > Programmed instruction. Crop yields > Programmed instruction.