<div style="text-align: justify;">This study was conducted to determine the effects of weed density and different weed control treatments on chickpea yield and yield components. The experiment was carried out in split plot design with 3 replications in experimental fields of Kirsehir Ahi Evran University during 2016 and 2017 crop seasons. Total nine treatments (no weed control, permanent weed control, one-time hoeing, two-time hoeing, three-time hoeing, herbicide application after emergence, one-time hoeing with herbicide application, two-time hoeing with herbicide application and three-time hoeing with herbicide application) were compared to know the most effective weed control method. Vaccaria pyramidata Medik., Sinapis arvensis L., Acroptilon repens L. weed species were found to be the most intense in the experimental area. All weed control applications had significant effect on chickpea yield and yield components compared to weedy plots. Three-time hoeing with herbicide application increased the yield by 361.55-478.50% compared to weedy plots. Likewise, three-time hoeing application even increased the yield by 348.50-357.09% compared to weedy plots. The results revealed that three-time hoeing with herbicide and three-time hoeing applications stood out in weed management to obtain a good yield in chickpea cultivation at Kirsehir province.</div>

<div style="text-align: justify;">The effects of weed density and different weed control applications on yield and yield components of chickpea cultivars</div>

A field experiment was conducted during the three consecutive seasons from 2006-08 on clay loam soil of Sugarcane Research Station, Buralikson, Assam to study the effect of different herbicides along with other cultural practices of weed management of sugarcane. The experimental field &nbsp;was laid out in randomized block design with three replication with the following &nbsp;ten treatments viz. T1: control, T2: 3 hoeings (1st , 4th and 7th week), T3: Atrazine@ 2kg a.i/ha + 2,4-D @ 1kg a.i/ha at 45 days after ratoon initiation, T4: atrazine @ 2 kg a.i/ha + &nbsp;1 hoeing at 45 days after ratoon initiation, &nbsp;T5: metribuzine @1 kg a.i/ha + 2,4-D @1 kg a.i/ha at 45 days after ratoon initiation, T6: metribuzine @1 kg a.i/ha + 1 hoeing at 45 days after ratoon initiation , &nbsp;T7: glycel-41@ 0.4 kg a.i/ha at 3rd week stage, T8: glycel-41@ 0.4 kg a.i/ha at 3rd week + 1 hoeing at 60 days after ratoon initiation, T9: trash mulching in alternate rows + hoeing during 1st and 6th week, T10: trash mulching in all rows. Result revealed that all the weed management practices had a significant effect on growth and yield of sugarcane over control. Out of all treatments, pre-emergence spraying of metribuzine @1 kg a.i/ha followed by spraying of 2, 4-D @1 kg a.i/ha at 45 days after ratoon initiation recorded lesser number of weeds and weed dry weight with higher weed control efficiency (80.38%). The same treatment also recorded the higher cane yield (79.6 t/ha) which is followed by pre-emergence spraying of metribuzine @ 1 kg a.i/ha with 1 hoeing at 45 days after ratoon initiation.

Effect of weed management practices on Sugarcane ratoon

Background: Finger millet is an important dryland crops since they can tolerate unfavorable weather and are frequently planted in soils with low nutrient and poor water holding capacity in soils. The main cause for yield loss is weed infestation which occurs in finger millet. Several integrated weed management techniques were carried out to control them particularly and to increase yield which benefits farmers. 
 
Methods: In this context a field experiment was conducted in Karunya Institute of Technology and Sciences, Coimbatore, during Rabi season of 2022-23 in direct sown finger millet under irrigated condition. The experiment was laid out in RCBD with ten treatments and three replications viz., PE pendimethalin @ 0.75 kg ha-1 8 DAS + Hand weeding @ 35 DAS, PoE 2,4-D @ 2 kg ha-1 40 DAS + Hand weeding @ 35 DAS, PE pretilachlor @ 0.75 kg ha-1 8 DAS + Hand weeding @ 35 DAS, PoE 2,4-D @ 2 kg ha-1 40 DAS + Twin wheel hoe @ 30 DAS, PE pendimethalin @ 0.75 kg ha-1 8 DAS + Twin wheel hoe @ 30 DAS, PE pretilachlor @ 0.75 kg ha-1 8 DAS + Twin wheel hoe @ 30 DAS, Hand weeding @ 25 and 40 DAS, Twin wheel hoe @ 25 and 40 DAS, Hand weeding @ 25 DAS + Twin wheel hoe @ 40 DAS and Unweeded control. The CO 14 finger millet was used a test variety with 110 days medium duration. 
 
Result: The result showed that pre-emergence pretilachlor @ 0.75 kg ha-1 8 DAS + Twin wheel hoe weeding @ 30 DAS significantly decreased weed density, importance value index and summed dominance ratio of weeds with higher weed control. The same treatment combination recorded higher plant height (115.8 cm) and grain yield (2368 kg ha-1) at harvest.

Effect of Integrated Weed Management Practices on Weed Dynamics, Growth Performance and Yield of Direct Sown Finger Millet (Eleusine coracana L.)

<div>Background:&nbsp;Weeds are the major biological constraint in okra due to its slow initial growth and wider row spacing. Due to severe crop weed competition, weeds removed considerable amount of nutrients from the soil. Competition exists between the crop and weed for nutrients results in nutrient deficiencies in crop. Hence the present experiment is formulated to assess the effect of stale seedbed, mulching and mechanical weeding on nutrient availability, nutrient uptake by crop and weed in okra. 
 
Methods: Experiment was conducted at Coconut Research Station, Balaramapuram, Thiruvananthapuram, Kerala during Rabi 2020-21. Design adopted for the study was RBD with two factors. The first factor was seedbed preparation (S) and the second factor was weed management (W). Stale seedbed (S1) and normal seedbed (S2) were the two different seedbed preparation methods and dried banana leaf mulch @10 t ha-1 alone (W1), dried banana leaf mulch @10 t ha-1 fb wheel hoe weeding at 30 and 45 DAS (W2), dried banana leaf mulch @10 t ha-1 fb hand weeding at 30 and 45 DAS (W3), wheel hoe weeding at 15, 30 and 45 DAS (W4), hand weeding at 15, 30 and 45 DAS (W5) and weedy check (W6) were the six different weed management options tried. Soil samples were collected after the harvest of the crop to determine the nutrient availability. Weed samples at 30 and 60 DAS and plant samples at harvest were analyzed to determine the NPK content and respective uptake of nutrients were calculated by multiplying the nutrient content with DMP. 
 
Result: Stale seedbed significantly enhanced the dry matter production and nutrient uptake by okra at harvest and lowered the nutrient removal by weeds at 30 and 60 DAS. Compared to non-stale, stale seedbed recorded significantly higher fruit yield. Among the weed management, wheel hoe weeding at 15, 30 and 45 DAS, recorded the lowest total weed dry weight at 30 and 60 DAS and resulted in the highest NPK uptake by crop and fruit yield. Uncontrolled weed growth resulted in a loss of 81.33, 18.16 and 50.84 kg N:P:K ha-1&nbsp;at 30 DAS and 102.09, 57.90 and 55.31 kg N:P:K ha-1 at 60 DAS, respectively. Nutrient removal by weeds was the lowest in wheel hoe weeding at 15, 30 and 45 DAS and the highest in weedy check. It could be concluded that, wheel hoe weeding at 15, 30 and 45 DAS was the best option for the management of weeds, higher nutrient availability and uptake and yield in okra.</div>

Nutrient Availability and Nutrient Uptake by Crop and Weed as Influenced by Stale Seedbed, Mulching and Mechanical Weeding in Okra

Background: This research aims to analyze the effects of IWM strategies on growth, nodulation and nutrient uptake in Trigonella foenum-graecum L. under Haryana conditions.&nbsp; 
 
Methods: Field experiments were conducted for two successive years with Trigonella foenum-graecum L. sown at Agronomy Research farm (29&deg;10&#39;N, 75&deg;46&#39;E), CCS Haryana Agricultural University, Hisar, Haryana during 2018-19 and 2019-20 to investigate the impact of factors on growth and economics of Trigonella foenum-graecum L.&nbsp; 
 
Result: Among the integrated treatments, application of pendimethalin + imazethapyr (RM) at 1500 g ha-1 + one hoeing at 3-4 leaf stage recorded maximum nitrogen, phosphorus and potassium uptake by seed and haulm and was found to be at par with weed free check. PRE pendimethalin + imazethapyr (RM) at 1500 g ha-1 + one hoeing at 3-4 leaf stage provided highest net returns (Rs. 27,579 ha-1) and highest B: C (2.13) was observed in PRE pendimethalin + imazethapyr (RM) at 1500 g ha-1, respectively. This article aims to document the role of IWM and concludes that coupling pendimethalin and imazethapyr and supplementing them with one hand hoeing will provide effective weed management.

Response of IWM Strategies on Growth, Nodulation, Productivity and Profitability in Fenugreek (Trigonella foenum-graecum L.) under Haryana Conditions

A field experiment was conducted to find out the effect of in-situ rainwater conservation techniques with integrated phosphorous management on consumptive use of moisture, moisture use efficiency and productivity of pigeonpea under dryland condition during the kharif season 2007-08 to 2011-12 at Zonal Agricultural Research Station, Solapur (Maharashtra). The pooled results revealed that in situ rain water conservation technique, flat sowing with one hoeing at 3rd week and opening of ridges and furrows at 30 days after sowing gave significantly higher grain and stalk (754 and 3323 kg ha-1) yield and has attributed to increased availability of soil water in the soil profile. Among the integrated phosphorus management, the application of 12.5 kg N ha-1 + 25 kg P2O5ha-1through DAP + Rhizobium + PSB registered significantly higher grain and stalk (897 and 3409 kg ha-1) yield over control with increased water use efficiency by 1.52 kg ha-1 mm-1. The higher soil moisture (136 mm),consumptive use of moisture (611mm) and moisture use efficiency (1.25 kg ha-1 mm-1) were conserved with the flat sowing with one hoeing at 3rd week and opening of ridges and furrow 30 days after sowing. Flat sowing + One hoeing +Opening of furrows at 30 DAS along with recommended dose of fertilizer 12.5:25 kg ha-1 N: P2O5 through DAP +Rhizobium +PSB is recommended for increased pigeonpea yield and water productivity through in situ rain water conservation techniques in dryland conditions.

In-situ rainwater conservation techniques with integrated phosphorus&nbsp;management on consumptive use of moisture, moisture use efficiency&nbsp;and productivity of pigeonpea under dryland conditions

A field experiment was conducted during rainy seasons of 2011 and 2012 at Udaipur to evaluate the effect of weed control and sulphur on yield and quality of soybean [Glycine max (L.) Merrill]. The twenty eight treatment combinations comprising 7 weed management treatments (weedy check, pendimethalin 1.0 kg ha-1 pre- emergence, quizalofop-ethyl 50 g ha-1 and imazethapyr 100 g ha-1 post-emergence at 15 DAS, pendimethalin, quizalofop-ethyl and imazethapyr followed by hoeing and weeding at 30 DAS) in main plot and 4 rates of sulphur application (00, 20, 40 and 60 kg ha1) in sub plot were laid out in split plot design with three replications. All weed control treatments reduced weed dry matter at harvest during both the years. Pendimethalin followed by hoeing and weeding at 30 DAS was significantly superior in reducing weed dry matter of broad-leaved, narrow-leaved and total weeds at harvest over rest of the treatments. All weed control treatments significantly enhanced straw and biological yield of soybean over weedy check. Pendimethalin followed by hoeing and weeding at 30 DAS produced significantly higher pooled seed (2168 kg ha-1), straw (3167 kg ha-1) and biological (5335 kg ha-1) yields compared to other treatments. Sulphur rates had no significant effect on weed dry matter at harvest. Across the years, increasing level of S application up to 40 kg ha-1 resulted in significantly increased straw yield, biological yield and harvest index of&nbsp; &nbsp;soybean. Increasing rate of sulphur application up to 40 kg ha-1 tended to significantly increase protein and oil yield.

Effect of weed management and sulphur on weed dynamics, soybean&nbsp;(Glycine max) yield and associated quality traits

<div>Background: A field experiment was conducted at the Instructional Farm of Rajasthan College of Agriculture, Maharana Pratap University of Agriculture &amp; Technology, Udaipur during Rabi 2016-17 and 2017-18 to study the weed flora, growth, yield and economics of fenugreek. The experiment was laid out in split plot design with three replications having Fenugreek variety RMT-305 (25 kg ha-1) and RDF of 40 kg N &amp; 40 kg P2O5 ha-1 (basal dose through urea and DAP).&nbsp; 
 
Methods: Herbicide applied as pre-emergence (PE) at one day after sowing, while post-emergence (PoE) application at 2-4 leaf stage of weeds (21 DAS) with knapsack sprayer having flat fan nozzle using 500 liters of water ha-1.&nbsp; 
 
Result: The pooled results revealed that pre-emergence application of oxadiargyl 100 g/ha fb hoeing at 40 DAS recorded significantly higher weed control efficiency (82.3%), plant height (59.83 cm), number of branches (6.09), number of pods (44.86), number of seeds/pod (17.33), seed weight (9.05 g/plant) of fenugreek. Also, significantly maximum seed yield (2.82 t/ha), haulm yield (6.70 t/ha) and harvest index (29.7%) of fenugreek was recorded under oxadiargyl 100 g/ha PE fb hoeing at 40 DAS which was at par with weed free treatment. Significantly higher net returns (98158 `/ha) and B C ratio (2.63) was obtained with application of oxadiargyl 100 g/ha Pre-Emergence (PE) fb hoeing at 40 DAS. Residual effect of herbicides used in fenugreek did not showed any phytotoxic effect on succeeding summer fodder maize in terms of visual phytotoxicity rating at various growth stages of maize, weed flora, dry matter of weeds as well as crop at 30 DAS and green fodder yield of summer fodder maize.</div>

<div>Production of Fenugreek (Trigonella foenum-graecum) as Influenced by Weed Management Practices and Vermicompost Application</div>

Background: Groundnut or peanut (Arachis hypogaea L.) is known as the &ldquo;King of Oilseeds&rdquo; which belongs to family Fabaceae (Leguminosae). It is highly susceptible to weed infestation because of its slow initial growth up to 40 DAS and small foliage cover. However, study on use of mechanical weed control methods with different fertility regimes for improving the productivity of groundnut was limited. Therefore, the objective of this study was to find a suitable method for optimising the productivity of groundnut. 
 
Methods: A field experiment was conducted at Odisha University of Agriculture and Technology, Bhubaneswar for two consecutive years of 2020 and 2021. The field experiment comprised 16 treatment combinations of four weed management practices and four fertility levels. The weed management practice included W1-Pre-emergence (PE) application of pendimethalin @ 0.75 kg ha-1, W2-Pre-emergence (PE) application of pretilachlor @ 0.5 kg ha-1, W3-Manual weeding (20 and 40 DAS), W4-Twin wheel hoe at 20 DAS followed by (fb) hand weeding at 40 DAS and four fertility levels includes T1-100% RDF (20:40:40) (N: P205: K2O kg ha-1), T2- 75% RDF + 5 tonnes FYM ha-1, T3- 50% RDF + 10 tonnes FYM ha-1, T4- without fertilizer + without FYM.&nbsp; 
 
Result: Amongst the weed management practices, use of twin wheel hoe at 20 DAS followed by hand weeding at 40 DAS significantly reduced the weed density, weed dry weight, weed index and recorded the highest weed control efficiency (69.8%). Highest weed index (32.9) was recorded with the application of pretilachlor @ 0.5 kg ha-1 (PE), which was followed by weed index of (28.5) with application of pendimethalin @ 0.75 kg ha-1 (PE). The fertilizer management practice with application of 50% RDF + 10 tonnes FYM ha-1 gave the highest yield and considerably reduced the total weed density, weed dry weight&nbsp; and recorded the maximum weed control efficiency (71.8 % at harvest). We suggest that weed management with twin wheel hoe at 20 DAS followed by hand weeding at 40 DAS along with application of 50% RDF + 10 tonnes FYM ha-1 as the most effective strategy for controlling the weed menace in groundnut with the highest weed control efficiency.

Weed Dynamics and Crop Productivity as Influenced by Weed Management Practices and Fertility Levels in Groundnut (Arachis hypogaea L.)

<div>Background: Weeds are one of the major constraints in achieving yield potential of black gram. Due to slow initial growth of black gram, weeds compete effectively and caused reduction in growth as well as yield of black gram. Hand weeding is neither practicable nor economical due to unpredictability of weather and high labour cost, respectively. Therefore, application of herbicides is considered as the best approach for efficient weed control in black gram. &nbsp; 
 
Methods: A field experiment was conducted at Research Farm of Department of Agronomy, CCSHAU, Hisar during summer and kharif 2017 to evaluate the effect of different weed control treatments in black gram and their residual effect on succeeding pearl millet and sorghum crops. Total of fourteen weed control treatments were replicated thrice in randomized complete block design (RCBD).</div>

<div> 
Result: Dactyloctenium aegyptium (37%), Trianthema portulacastrum (34%), Cyperus rotundus (21%) and Digera arvensis (8%) were the major weed flora associated with black gram at 30 DAS. Both at 30 and 60 DAS, PE application of imazethapyr + pendimethalin (RM) at 1000 g ha-1 provided 100% control of D. aegyptium and T. portulacastrum. PE application of imazethapyr + pendimethalin (RM) at 1000 g ha-1 was the most significant herbicide treatment (90% control of weeds) at 30 DAS however, 3-4 leaf stage application of imazethapyr + imazamox at 70 g/ha recorded with highest control of weeds (89%) at 60 DAS. Maximum seed yield (912 kg ha-1) and yield attributes of black gram were obtained in weed free treatment which was statistically at par with two hoeing performed at 20 and 40 DAS (895 kg ha-1) and PE application of imazethapyr + pendimethalin (RM) at 1000 g ha-1 (878 kg ha-1). Imazethapyr and its RM combination with imazamox applied at 3-4 leaf stage had phytotoxic effects on black gram at 30 DAS which suppressed the growth and caused yield penalty. Residual effect or phytotoxicity was not observed on succeeding pearl millet and sorghum crops.</div>

<div>Bioefficacy of Imazethapyr Applied Alone and in Combination with other Herbicides in Black Gram and their Residual Effect on Succeeding Pearl-millet and Sorghum Crops</div>

The effects of weed density and different weed control applications on yield and yield components of chickpea cultivars

Effect of weed management practices on Sugarcane ratoon

Effect of Integrated Weed Management Practices on Weed Dynamics, Growth Performance and Yield of Direct Sown Finger Millet (Eleusine coracana L.)

Nutrient Availability and Nutrient Uptake by Crop and Weed as Influenced by Stale Seedbed, Mulching and Mechanical Weeding in Okra

Response of IWM Strategies on Growth, Nodulation, Productivity and Profitability in Fenugreek (Trigonella foenum-graecum L.) under Haryana Conditions

In-situ rainwater conservation techniques with integrated phosphorus management on consumptive use of moisture, moisture use efficiency and productivity of pigeonpea under dryland conditions

Effect of weed management and sulphur on weed dynamics, soybean (Glycine max) yield and associated quality traits

Production of Fenugreek (Trigonella foenum-graecum) as Influenced by Weed Management Practices and Vermicompost Application

Weed Dynamics and Crop Productivity as Influenced by Weed Management Practices and Fertility Levels in Groundnut (Arachis hypogaea L.)

Bioefficacy of Imazethapyr Applied Alone and in Combination with other Herbicides in Black Gram and their Residual Effect on Succeeding Pearl-millet and Sorghum Crops