633.20884
|
Whitehead, D. C. (David Charles)
The role of nitrogen in grassland productivity : a review of information from temperate regions / by D. C. Whitehead.
— Farnham Royal : Commonwealth Agricultural Bureaux, 1970. [1], viii, 202 p. : il. ; 22 cm. — (Commonwealth Bureau of Pastures and Field Crops, Hurley, Eng. (Berkshire). Bulletin ; 48)
Bibliografía: p. 162-195.
ISBN 0851980155
|