flag flag  

Search all repositories
add criteria
Close advanced options Search for

 

Enter more search criteria
Publication Date
     
From
To
Document Language
Document Type
Repositories
Search History
• (author = "Sullivan, J" AND source = "Agriculture, Ecosystems and Environment 79 (2000) 2-3")
New Search Save Search Refine Search
Results
author = "Sullivan, J" > : "Agriculture, Ecosystems and Environment 79 (2000) 2-3" (x)
1

Found 2 documents, displaying page 1 of 1

Nitrogen Use Efficiency of taro and sweet potato in the humid lowlands of Papua New Guinea

Author(s) : Hartemink, A.E. , Johnston, M. , O'Sullivan, J.N. , Poloma, S.
Description : Root crops are an important staple food in the Pacific region. Yields are generally low and inorganic fertilizers are deemed an option to increase root crop production. The effects of inorganic N fertilizers on upland taro (Colocasia esculenta (L.) Schott) and sweet potato (Ipomoea batatas (L.) Lam....
Repository : Wageningen University and Researchcenter Publications
Language(s) : English

Yield decline of sweet potato in the humid lowlands of Papua New Guinea

Author(s) : Hartemink, A.E. , Poloma, S. , Maino, M. , Powell, K.S. , Eganae, J. , O'Sullivan, J.N.
Description : Sweet potato (Ipomoea batatas (L.) Lam) is the major staple crop in Papua New Guinea and experiments were conducted investigating factors affecting yield decline. Yields of unfertilized plots were related to rainfall and measured changes in soil properties, nematode (Meloidogyne sp., Rotylenchulus r...
Repository : Wageningen University and Researchcenter Publications
Language(s) : English
1

Found 2 documents, displaying page 1 of 1