Pre-Emergence
PERFORMANCE OF SOME PRE EMERGENCE HERBICIDES AGAINST WEEDS IN WINTER RICE
... in Bangladesh is 50% of world’s average (BRRI, 2006). Weed infestation and interference is a serious problem in rice fields that significantly decreases yield. In Bangladesh weed infestation reduces rice grain yield by ...
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The implications of spatially variable pre-emergence herbicide efficacy for weed management.
... In our experiments, the potential for seedlings surviving sublethal effects of pre-emergence herbicides to mature and produce fresh seed was quantified. However, the experiment did not include competition ...
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Effect of electron transport rate on sugarcane submitted to pre-emergence application of atrazine and tebuthiuron
... The sugarcane cultivar SP80-3280 presented a good selectivity to the herbicides tebuthiuron and atrazine applied in pre-emergence. The greatest reductions of the ETR were observed in the plants that ...
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PRE- EMERGENCE HERBICIDES AND MULCHES AFFECT WEED FLORA AND MARKETABLE YIELD OF CHILI CROP
... of mulching materials such as saw dust, white or clear polythene, black plastic, carpet, straw, cardboard, tree bark and wood chippings have shown promising results in decreasing weed population (Feldman et al;., 2000; ...
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Potential Interaction of Pre-emergence Herbicides and the Efficacy of Insecticide and Fungicide Seed Treatments in Cotton
... of pre-emergence herbicides has in- creased dramatically in Tennessee and in many other areas of the Cotton Belt during the last 5 to 8 years in response to glyphosate ...b). Pre- emergence ...
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Control of Glyphosate Resistant Giant Ragweed (Ambrosia trifida L ) with 2,4 D Followed by Pre Emergence or Post Emergence Herbicides in Glyphosate Resistant Soybean (Glycine max L )
... Similar results were observed for visual control ratings recorded at soybean harvest (Table 2). Herbicide treatments containing 2,4-D in a burndown program followed by PRE or POST herbicides provided 89% to 99% ...
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RESPONSE OF CHICKPEA (Cicer arietinum) AND Euphorbia dracunculoides TO PRE AND POST EMERGENCE HERBICIDES
... According to Willoughby et al., (1996) use of herbicides must provide adequate weed control without adversely affecting seedling emergence and survival. Tolerance of seedling to herbicides is dependent on the ...
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Tolerance of four spring barley (Hordeum vulgare L ) varieties to weed harrowing
... of pre-emergence weed harrowing, because it should be conducted just before crop emergence to ensure effective weed control without harming the crop (Rasmussen & Rasmussen, ...
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EFFECTS OF HERBICIDES ON WEED SUPPRESSION AND RICE YIELD IN TRANSPLANTED WETLAND RICE
... that pre- emergence herbicides offered early season weed control up to the period of full canopy cover by rice plants, which might also contributed to higher grain ...
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Residue of bensulfuron methyl in soil and rice following its pre- and post-emergence application
... the quantification limit of 0.01 µg/g during kharif 2013 (Table 2 and Figure 5). The quantity of BSM residue detected in soil at post-emergence applica- tion is higher (0.017 µg/g) than at ...
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EVALUATION OF PRE AND POST-EMERGENCE HERBICIDES FOR WEED MANAGEMENT IN LENTIL (LENS CULINARIS MEDIK.)
... Isoproutron was used showed grea- test impact on controlling weeds and had similar response like manual weeding that controlled the weeds tremendously and produced low weed biomass. Yasin et al. (1995) and Elkoca et al. ...
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Allelopathic Effect of the Coffee Residue in Emergency and Urochloa brizantha Growth
... in pre-emergence the phytotoxicity was significant presenting ...interaction, pre-emergence application, the highest phytotoxicity was identified for the gathering season A, Table 5, possibly ...
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EFFICACY OF DIFFERENT PRE AND POST-EMERGENCE HERBICIDES TO CONTROL WEEDS IN DIRECT SEEDED RICE
... oxadiargyl 80 g a.i. ha -1 , triafaman+ ethoxy sulfuran ethyl 56.25 g a.i. ha -1 , pyriftalid+ bensulfuron ethyl 220.32 ml a.i. ha -1 , bispyribac sodium+bensulfuran 75 g a.i. ha -1 , phenoxaprop 431.25 ml a.i. ha -1 , ...
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EFFICACY OF PRE AND POST EMERGENCE HERBICIDES TO CONTROL WEEDS IN CHICKPEA (Cicer arietinum L.)
... The economic analysis revealed that application of herbicides seems to be economical in all treatments over control in enhancing yield by 11-71% and accumulating net return over control (Table-4). Treatment wise net ...
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EVALUATING SEQUENTIAL APPLICATION OF PRE AND POST EMERGENCE HERBICIDES IN DRY SEEDED FINE RICE
... method. Pre emergence application of pendimethalin was identified as the treatment with highest MRR of 11353% ...of pre and post emergence herbicides in a sequential manner fetched higher net ...
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Effects of Selected Chemical Stimulants on Germination of Castor ( Ricinus Communis L.) Seed
... DAP, pre-emergence mortality at 14 DAP, post-emergence mortality at 14 DAP, and germination speed index was used to quantify seed, seedling vigour and the planting value of seed ...
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Biological Control of the Weed Sesbania exaltata Using a Microsclerotia Formulation of the Bioherbicide Colletotrichum truncatum
... The present study has demonstrated the successful use of soil applications of microsclerotia of the bioherbi- cide Colletotrichum truncatum formulated on rice grain to effectively control hemp sesbania. Although most ...
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Interactions between pre and post emergence weed harrowing in spring cereals
... between pre- and post-emergence weed harrowing under different environmental conditions, and the answer is clear: no evidence of such an interaction was ...whether pre-emergence weed harrowing ...
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PERFORMANCE OF PRE AND POST-EMERGENCE HERBICIDES FOR WEED CONTROL IN COTTON (Gossypium hirsutum L.)
... for pre and post-emergence herbicides, ...from pre- emergence application of ...of pre-emergence herbicides was higher at 30 DAP than 60 DAP, except for metolachlor+pendimethalin ...
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BIOHERBICIDAL POTENTIAL OF PLANT EXTRACTS AGAINST WEEDS OF WHEAT CROP UNDER AGRO CLIMATIC CONDITIONS OF PESHAWAR PAKISTAN
... (pre emergence and post emergence) of plant extracts, while there were eight sub plots consisting of different weed control measures ...the pre emergence application of all the plant ...
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