id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajoaa-1200	Muoni , Tarirai ; Mhlanga, Blessing 	Weed Management in Zimbabwean Smallholder Conservation Agriculture Farming Sector	2014	10	.pdf	application/pdf	5549	340	56	The presence of crop residues has been reported to improve macro- and microbial activity in the soil and so this also improves the predation of weed seeds by some microorganisms that are found in the soil leading to reduced number of weeds seed and in turn reduced number of weeds (Kremer, 2000). Weed seeds accumulate at the surface, when allowed to set seed, increasing their exposure to predation resulting in reduction of weed density over time.	cache/ajoaa-1200.pdf	txt/ajoaa-1200.txt