This paper describes a dynamic simulation model that allows for comprehensive assessment of integrated weed management programmes for the control of annual barnyardgrass (Echinochloa crus-galli complex) in Philippine rice farming systems. The main outputs of the model include weed seed and plant densities and seasonal and annualised profit over the simulated planning horizon. Results broadly in...

Most producers use herbicides to manage weed infestations. Generally, herbicides are applied at a uniform rate to the entire field. However, a uniform application may not be appropriate for all areas of a field. As precision agriculture technologies have developed, site-specific management of most agricultural inputs, including herbicides, has become feasible. Differentiated application of herb...

in order to study the weed damage and to determinate the influence of weed species and multiple weed species competition in corn (zea mays l.), a field experiment was conducted based on interval mapping at the agronomy research field of ferdowsi university of mashhad during 2009-2010. treatments consisted of four density level of crop (5, 6, 7 and 9 plant.m-2) and four type of weed management (...

Jhala, A. J., Malik, M. S. and Willis, J. B. 2015. Weed control and crop tolerance of micro-encapsulated acetochlor applied sequentially in glyphosate-resistant soybean. Can. J. Plant Sci. 95: 973 981. Acetochlor, an acetamide herbicide, has been used for many years for weed control in several crops, including soybean. Micro-encapsulated acetochlor has been recently registered for preplant (PP)...

The potential impact of herbicide utilization compel people to use new method of weed control. Selective herbicide application is optimal method to reduce herbicide usage while maintain weed control. The key of selective herbicide is how to discriminate weed exactly. The HIS color co-occurrence method (CCM) texture analysis techniques was used to extract four texture parameters: Angular second ...

A field experiment was conducted at the Pulse Research Centre of Bangladesh Agricultural Research Institute, Ishurdi, Pabna during Kharif-II season of 2010 to evaluate the efficacy of five herbicides for controlling weeds associated with mungbean (BARI Mung-6). The five herbicides such were: Paraxon (27.6% WV Paraquat dichloride salt), M-clor 5G (Butaclor), Topstar 40 WP (40% Oxadiargyl), Hamme...

Small size agricultural robots which are capable of sensing and manipulating the field environment are a promising approach towards more ecological, sustainable and human-friendly agriculture. This chapter proposes a machine vision approach for plant classification in the field and discusses its possible application in the context of robot based precision agriculture. The challenges of machine ...

Japanese honeysuckle is rapidly increasing as a weed throughout most of the North Island and northern South Island of New Zealand. A classical biological control programme was initiated in 2004–2005 with a survey of the natural invertebrate fauna and pathogens associated with the weed in New Zealand. The honeysuckle was being attacked by a diverse range of native and introduced invertebrates. B...

This paper analyzes optimal weed control management strategies under static and dynamic decision rules. Seed bank is taken into account to introduce dynamics into the model. We present a numerical example of controlling Sheathed Monochoria (Monochoria Vaginalis) in Korean rice paddy fields. Our results show that producers benefit from dynamic decision rules; higher income and more control of we...