Mostrando ítems 1-10 de 92
Feria de la Labranza de Conservación, 2; Guaymango, El Salvador; 22 Nov 1996. Memoria
(CIMMYT; CENTA; IICA; PRM, 1996)
Increasing wheat yields sustainability through agronomic means
This paper examines common factors that constrain wheat yields: insufficient nutrients (using nitrogen as an example); problems of late planting and poor crop establishment; suboptimal water management; lodging; and weeds. ...
Velvetbean: A "new" plant with a history
Velvetbean (Mucuna spp.), a vigorous climbing legume of Asian origin, is prominent among the plants currently promoted for use as a green manure and cover crop in the humid tropics. What is not so well known, however, is ...
Soil fertility management research for the maize cropping systems of smallholders in Southern Africa: A review
This paper examines the implications of declining soil fertility for the maize-based cropping systems in southern and eastern Africa. A review of the importance of maize in the region is followed by a description of the ...
Meeting South Asia's future food requirements from rice-wheat cropping systems: Priority issues facing researchers in the post-green revolution era
The importance of rice-wheat cropping systems in meeting present and future food needs in South Asia is reviewed. Evidence from a number of factor productivity studies, which analyze yield trends after adjusting for changes ...