The impact of different weed management strategies on weed flora of wheat-based cropping systems

Effect of tillage systems on weed infestation of durum wheat

Weed infestation of durum wheat was determined in the systems of conventional tillage(CT), reduced tillage (RT) and herbicide tillage (HT). Cultivations measures performed after theharvest of the previous crop included shallow ploughing (at a depth of 10-12 cm) and pre-winterploughing (25-30 cm) in the CT system; only field cultivation (10-15 cm) in the RT system; andspraying with glyphosate (R...

Weed Control in Organic Cropping Systems

Weed control in organic horticultural cropping systems

A review of organic growers' concerns about weeds is presented and several issues that may ease those concerns are highlighted. The underlying principles of organic weed management (OWM) are briefly discussed and results from organic grower surveys regarding weed management practices in organic horticultural cropping are presented. The most common weeds encountered by organic growers, often tho...

the impact of explicit instruction of top-down reading strategies on reading comprehension of intermediate efl learners

this study investigated (a) the learners’ existing reading strategy repertoire, (b) the effect of instruction in reading strategies on learners’ strategic performance, and (c) the effect of explicit instruction in top-down reading strategies on reading comprehension ability of intermediate learners. the study was conducted with 40 intermediate efl learners in two groups of experimental and cont...

2011 Organic Spring Wheat Weed Control Strategies