National Academy of Agricultural Sciences (NAAS)
|
PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Conservation agriculture (CA) technologies involve minimum soil disturbance, soil cover through crop residues or other cover crops, and crop rotations. Weeds are major biological constraints in adoption of CA-based technologies due to changes in patterns of tillage, planting systems, and other management strategies. Preventive measures to avoid the contamination in the field are the first and foremost important strategies to reduce weed infestation. Adjustment of crop planting date, increasing the crop density, band placement of fertilizer, breeding of competitive cultivars having allelopathic effect, retention of crop residue, crop rotation, stale seed bed technique, laser land levelling, microbial weed control can be adopted for weed control. Herbicides which are considered to be an integral component of weed control in CA can be used in conjuction with other options. Herbicide rotation, mixture of molecules having alternate mode of action and/or integration of weed management practices is preferable. Since no single method of weed control can provide desired level of weed control, there is a need to integrate different weed-management strategies for widening the weed control spectrum and efficacy under CA. Further research is needed in area of understanding dynamics of weeds, their interference potential and suitable management practices with low-cost herbicide, optimum amount of residue for effective weed control, breeding of weed competitive cultivars having allelopathic potential, estimation of weed seed predation under CA.
Citations |
 |
 |
 |
 |
