D. Sigunga

发表

Ammonia volatilization from Vertisols

B. H. Janssen, O. Oenema, D. Sigunga, 2002 .

Elucidating the causes of low phosphorus levels in ferralsols of Siaya County, Western Kenya

P. Owuor, C. O. Owino, D. Sigunga, 2015 .

Fertilizer nitrogen use efficiency and nutrient uptake by maize (Zea mays L.) in vertisols in Kenya.

D. Sigunga, 1997 .

Aluminum effects on six wheat cultivars in Kenyan soils

R. Waldren, J. Mccoll, D. Sigunga, 1991 .

Effects of improved drainage and nitrogen source on yields, nutrient uptake and utilization efficiencies by maize (Zea mays L.) on Vertisols in sub-humid environments

B. H. Janssen, O. Oenema, D. Sigunga, 2002, Nutrient Cycling in Agroecosystems.

Effects of drying method, storage period and carbon: nitrogen ratio on inorganic nitrogen contents of Vertisols

D. Sigunga, Dobrinkova Nina, 2012 .

Potential Denitrification: Concept and Conditions of Its Measurement

D. Sigunga, 2003 .

Phosphorus requirements by maize varieties in different soil types of Western Kenya

D. Sigunga, Cj Wasonga, A.A.O. Musandu, 2010 .

Denitrification risks in relation to fertilizer nitrogen losses from vertisols and phaoezems

B. H. Janssen, O. Oenema, D. Sigunga, 2002 .