Soil conditions and plant growth QK745 .

Manylion Llyfryddiaeth
Prif Awdur:	Russell, Edward J. (Edward John), Sir, 1872-1965
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	[London] Longmans [1961].
Rhifyn:	9th ed. by E. Walter Russell.
Pynciau:	Crops and soils. Soil science.