Appropriate Herbicide Formulation and Packaging for Smallholder Tropical Farmers Practicing No - tillage . In Proceedings of Symposium Notillage Crop Production in the Tropics , Monrovia , Liberia , August 6-7 , 1981 .

BEHMEL , F .; NEUMANN , I. An example of agroforestry for tropical mountain areas . ... BOWERS , R.D. Agricultural tree crops as a no - tillage system . ... In Agroforestry Systems for small scale farmers , Nairobi , 1982. Proceedings .

No Metarhizium or Beauveria infected larvae were found at any site , underlining the rarity of these diseases in ... Crop losses and the costs of itch grass control limit the areas planted by small and medium - size farmers .

Siembras de apertura; Siembra directa: perspectivas en areas tropicales y subtropicales; Analisis de la sustantabilidad del sistema de siembra directa en comparacion con la labranza convencional; La siembra direca en la Argentina; O plantio ...