Fertilizer nitrogen use efficiency and nutrient uptake by maize (Zea mays L.) in Vertisols in Kenya
By: Dalmas O. Sigunga
Contributors: Landbouwuniversiteit Wageningen
Publisher: [s.n.]
Published: 1997
Place of publication: Wageningen
Language: eng
Number of pages: 207
Notes: "Stellingen" inserted.

Thesis (doctoral)--Landbouwuniversiteit te Wageningen, 1997.

Includes bibliographical references (p. 179-198)

Summary in Dutch.