Smallholder farmers in southern Africa have reported on increased labour requirements for hoe weeding due to high weed infestations in conservation farming (CF) fields. However, CF proponents claim that weed pressure and labour requirements for weeding decrease within the first three years under the recommended CF practices. An observational study was carried out during the 2008/09 cropping sea...

Taking the lubrication system of rotary tillage engine as research object, this paper makes a three-dimensional simulation study on oil flow characteristics in lubricating passage. The supply pump shall be greater than circulating required by to ensure cultivator. Lubrication is an important part reliability and durability key component achieve its performance pump. geometric model field tiller...

OBJECTIVES To evaluate radiographically the quality of root canal fillings and compare manual and rotary preparation performed on extracted teeth by undergraduate dental students. STUDY DESIGN A total of 561 premolars and molars extracted teeth were prepared using nickel-titanium rotary files or manual instrumentation and filled with gutta-percha using a cold lateral condensation technique, b...

Background: Clusterbean is one of the most important crop arid and semi-arid region India. It mainly grown for vegetable, manure, fodder seed purpose. Seeds clusterbean contain galactomann (stored in endosperm) which has industrial uses, thus making it major cash earner crop. Various biotic abiotic stresses affects during its growth stages. Among stresses, weeds are affecting yield. Due to init...

mechanical weeding is one of the non-chemical methods to control weeds. in this paper a ‎new mechanism has been presented for mechanical cultivation. the machine works based on ‎the manual tools operation, which farmers still use in small scale for weeding and consists of a ‎number of four-bar linkage mechanisms. each mechanism consists of a blade which moves ‎forward (active course) and backwa...

A key enabling factor for treating individualized weeds in the crops is Automatic Weeding Control device (AWCd) as it being capable of finding and distinguishing field. The non-herbicide approaches used to manage are a component personalized treatment weed crops. In this study, mechanical control techniques investigated an alternative. three specifications—a cutting mechanism, head-surface till...

Till now, herbicide seems to be a cost effective tool from an agronomic view point to control weeds. But long term efficacy and sustainability issues are the driving forces behind the reconsideration of herbicide dependent weed management strategy in rice. This demands reappearance of physical and cultural management options combined with judicious herbicide application in a more comprehensive ...

Abstract Cassava is growing in importance Nigeria as a food and industrial crop. Current yields are low due to poor soil fertility because farmers do not use improved germplasm, clean planting material, or crop management Nigeria. To provide feasible agronomic recommendations targeting increased root yield, the effects of tillage intensity, fertilizer application, plant density weed control wer...