SPORE Bulletin of the CTA No. 20 (CTA Spore, 1989, 16 p.)

SPORE Bulletin of the CTA No. 20 (CTA Spore, 1989, 16 p.)

		(introduction...)
		Wheat in the Tropics : a growing demand
		The crop
		The political position
		Agro-ecology in Africa
		Trade frontiers & the birth rate three universal preconceptions
		Conference
		Pheromones for cotton and rice pests
		Knapsack sprayer doubles as fertiliser applicator
		Fruit Bats are not Pests
		Science and Technology Agricultural Reporter
		Zimbabwe women get together
		Global warming could hit rice
		Grass hedges save soil and water
		Agricultural & Development Information
		Seed centres to be set up
		Information
		Research in progress
		Bookshelf