scholarly journals Effect of Weed Management Practices on Weed Dynamics, Growth, Yield and Yield Attributes of Rice (Oryza sativa L.)

2020 ◽  
pp. 40-52
Author(s):  
Preeti Chaudhary ◽  
. Vivek ◽  
R. K. Naresh ◽  
B. P. Dhyani ◽  
M. Sharath Chandra
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
Sandy Loam ◽  
Block Design ◽  
Growth Parameter ◽  
Research Centre ◽  
Dry Matter Accumulation ◽  
Area Index ◽  
Yield Attributes ◽  
Weed Population

A field experiment was conducted on sandy loam soil at Crop Research Centre of Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, U.P. during kharif (July –October), 2019 in randomised block design with three replications. The study comprised of ten different statistical treatments for weed management practices in transplanted rice and various observations were recorded during the crop growth period. The results indicated that the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT significantly reduced the weed population and dry weight over weedy check. The highest plant height, number of tillers (m-2), dry matter accumulation, leaf area index, panicle length, filled grains, unfilled grains, higher protein content, 1000-grain weight and grain yield (38.80 q ha-1), were recorded with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT, which established itssuperiority over rest of the herbicidal treatments. Among weed management treatments, Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT (T8) found excellent to control weed population and increase growth parameter, yield attributes and crop productivity.

scholarly journals Effect of Different Spacing and Weed Management Practices on Weeds, Crop Growth and Productivity of Pigeon Pea Variety Pusa Arhar-16

2021 ◽  
Author(s):  
Yadwinder Singh ◽  
Kanwaljit Singh
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
Field Experiments ◽  
Growth Parameters ◽  
Growth Parameter ◽  
Pigeon Pea ◽  
Crop Growth ◽  
Growth And Yield ◽  
Area Index ◽  
Yield Attributes

Background: To study effect of various spacing and weed management practices on weed control, growth parameter, yield and yield attributes of pigeon pea variety Pusa Arhar-16, field experiments were conducted at Student’s Research Farm, Khalsa College Amritsar, Punjab, India during kharif season of 2019-20.Methods: The experiment was laid out in Split plot design with three replications. The treatments comprised of four different spacing i.e. S1 (30×10 cm), S2 (30×15 cm), S3 (40×15 cm) and S4 (50×25 cm) which were considered as main plot treatments and three weed management practices W1 (weedy check), W2 (pendimethalin @ 1.5 kg a.i. ha-1 at 1DAS) and W3 (rice straw mulch) as sub-plot treatments.Result: It was found that maximum plant height (218.2 cm) and highest leaf area index (2.104) was recorded in treatment S1 (30×10 cm) whereas treatment S4 (50×25 cm) was superior in rest of growth parameters viz. maximum crop growth rate (0.85 gram per plant per day), number of primary branches (18.2 per plant) and number of secondary branches (13.8 per plant). Among yield and yield attributes, spacing S1 (30×10 cm) showed maximum grain yield (16.29 q ha-1) and stover yield (49.29 q ha-1) whereas, maximum number of pods per plant (154.6), pod length (4.83 cm), number of seeds per pod (3.90) and 100-seed weight (7.14 grams) were recorded in spacing S4 (50×25 cm). The weed management treatments showed non-significant effect on growth and yield parameters due to weed suppressing ability of the crop. which might be due to weed suppressing ability of the crop. It may be concluded that pigeon pea cultivar Pusa Arhar-16 performed better in narrower spacing of 30×10 cm due to its dwarf nature and it also showed good smothering effect on the weeds due to its smothering effect.

Residual Effect of Weed Management Practices Executed in Preceding Maize on Succeeding Greengram

2021 ◽  
Author(s):  
B. Sandhya Rani ◽  
V. Chandrika ◽  
G. Prabhakara Reddy ◽  
P. Sudhakar ◽  
K.V. Nagamadhuri ◽  
...  
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
Block Design ◽  
Residual Effect ◽  
Cropping System ◽  
Dry Weight ◽  
Microbial Count ◽  
Yield Attributes ◽  
Randomized Block Design ◽  
Weed Infestation

Background: Maize followed by summer pulses is the emerging cropping system in many places in India. Herbicides are the efficient tools for checking weed infestation and their usage is increasing throughout the globe due to increased labour cost and quick weed control. Some herbicides do not degrade quickly and may remain in the soil for weeks, months or years after application and may inhibit the growth of succeeding crops. Methods: Field experiment was conducted in a randomized block design (RBD) during rabi and summer seasons of 2017-18 and 2018-19 to know the residual effect of different herbicides applied in maize on succeeding greengram. Result: The present study revealed that lower density and dry weight of total weeds and higher yield attributes and yield was recorded with the practice of adopting two hand weedings at 15 and 30 DAS, which was however, at par with atrazine 1.0 kg ha-1 as PE fb one HW at 30 DAS, atrazine 1.0 kg ha-1 as PE fb topramezone 30 g ha-1 as PoE and atrazine 1.0 kg ha-1 as PE fb tembotrione 120 g ha-1 as PoE, without any significant disparity among them. Herbicides applied in maize did not alter statistically the enzyme activity and microbial count in the soil at harvest of succeeding greeengram. 

scholarly journals Standardization of spacing and weed management practices in SRI system of rice cultivation under organic conditions in relation to sustainable agriculture in the changing scenario of climate

2014 ◽  
Vol 15 (3) ◽  
pp. 51-54
Author(s):  
Rameshwar K. ◽  
J.P. Saini ◽  
Sanjay Chadha ◽  
Punam K. ◽  
R.G. Upadhyay
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
Block Design ◽  
Rice Variety ◽  
Dry Weight ◽  
Yield Attributes ◽  
Organic Farm ◽  
Commelina Benghalensis ◽  
Hand Weeding ◽  
Paddy Yield

A field experiment was conducted during kharif seasons of 2009 & 2010 at Model Organic Farm of Department of Organic agriculture, CSK Himachal Pradesh Krishi Vishvavidyalya Palampur in factorial randomized block design with three replications consisting of eight treatment combinations. The treatments included two methods of weeding (mechanical weeding with cono weeder & hand weeding) and 4 spacings (25x25, 30x30, 20x20 and 30x20 cm). Rice variety RP-2421 was transplanted in second week of July during both the years following all organic packages of practices. The weeding was done at 20 & 40 days after transplanting rice. The dominant species of weeds were Echinochloa crusgalli, Digitaria sanguinalis and Panicum  dichotomiflorum among grasses; Cyperus iria and Cyperus difforimis among sedges and Aeschynomera indica, Ammania spp and Commelina benghalensis among broadleaved weeds.The experimental results revealed that 2 mechanical weedings with cono-weeder at 20 & 40 DAT resulted in significantly higher values of yield attributes viz. effective tillers/m2 & panicle length and hence higher paddy yield and lower weed dry weight over hand weeding twice (20 & 40 DAT). However, grains/ panicle and 1000 grain weight did not vary significantly during both the years. Among spacings 30x30 cm being at par with 25x25 cm & 30x20 cm recorded significantly higher paddy yield and lower weed dry weight over 20x20 cm during both the years. The interactions between method of weedings& spacing were observed to be non-significant during both the years of study.

scholarly journals Effect of Mulching on Growth and Yield of Peanut (Arachis hypogaea L.) on the Coastal Sandy Land in Nghe An Province, Vietnam

2022 ◽  
Author(s):  
Tran Xuan Minh ◽  
Nguyen Cong Thanh ◽  
Tran Hau Thin ◽  
Nguyen Thi Huong Giang ◽  
Nguyen Thi Tieng
Keyword(s):  
Arachis Hypogaea ◽  
Management Practices ◽  
Block Design ◽  
Growth And Yield ◽  
Dry Matter Accumulation ◽  
Sandy Land ◽  
Plastic Mulch ◽  
Area Index ◽  
Straw Mulch ◽  
Arachis Hypogaea L

Background: Peanut (Arachis hypogaea L.) is one of the oil and cash crops in Vietnam. However, owing to the lack of appropriate management practices, the production and the area under cultivation of peanut have remained low. Mulches are the key factors contributing to promoting crop development and early harvest and increasing yields. Methods: The experiment consisted of three mulch treatments, viz., plastic mulch, straw mulch and no-mulch control. All the treatments were replicated thrice in a complete randomized block design. Result: In the conditions of mulch, the plant growth parameters (germination rate, growing time, plant height, number of branches per plant), leaf area index, the number of nodules per plant, dry matter accumulation, yield components and yield of peanut was much higher than that of no-mulch control. Among the mulches, plastic mulch was found superior to straw mulch in the pod yields and water-use efficiency and moisture conservation, thereby can be considered as a reliable practice for increasing the productivity of peanut on the coastal sandy land in Nghe An province, Vietnam.

scholarly journals Effect of different methods of sowing and row orientation on growth, yield and quality of wheat (Triticum aestivum L.)

2019 ◽  
Vol 39 (1) ◽  
Author(s):  
Kuldeep Singh ◽  
Rakesh Sharma
Keyword(s):  
Field Experiment ◽  
Grain Yield ◽  
Sandy Loam ◽  
Growth And Yield ◽  
Dry Matter Accumulation ◽  
Zero Tillage ◽  
Area Index ◽  
Yield Attributes ◽  
Available N ◽  
East West

A field experiment was conducted during Rabi season of 2015-16 at the Students’ Research Farm, Khalsa College Amritsar, on sandy loam soil, low in organic carbon and available N, Medium in available P and high in available K. Field experiment was laid out in split plot design comprising four methods of sowing such as (Bed Planting, Zero tillage, Flat drilling, Happy seeder) and two row orientation as (North-South and East-West) replicated four times. Bed planting method produced significantly higher growth characters (i.e. plant height, leaf area index and dry matter accumulation, yield contributing characters effective tillers, grains ear-1, grain and straw yield, harvest index and B C ratio) than happy seeder and zero tillage sowing Bed planting recorded 14% and 10.48% higher grain yield over happy seeder and zero tillage sowing, respectively. Between row orientations, north-south row orientation produced higher growth and yield attributes than east-west whereas grain yield and biological yield was 3.86% and 3.77% higher than east-west sowing direction respectively.

scholarly journals Evaluation of different weed management practices in dry direct seeded spring rice at Baniyani, Jhapa, Nepal

2020 ◽  
Vol 5 (4) ◽  
pp. 535-542
Author(s):  
Rakshya Poudel ◽  
Santosh Marahatta ◽  
Santosh Kandel ◽  
Purnima Puri
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
Block Design ◽  
Rice Variety ◽  
Growth Yield ◽  
Dry Weight ◽  
Yield Attributes ◽  
Net Returns ◽  
Weight Growth ◽  
Agriculture Modernization

A field experiment was conducted during the spring season of 2020 to evaluate the different weed management practices in dry directed seeded spring rice under Prime Minister Agriculture Modernization Project (PMAMP) super zone at Baniyani, Jhapa. The experiment was laid out in randomized complete block design (RCBD) with seven weed management related treatments and three replications. The treatments consisted of pre-emergence application of Pretilachlor, pre-emergence application of Pendimethalin, pre-emergence application of Pretilachlor fb post-emergence butachlor pre-emergence application of Pendimethalin fb post-emergence Bispyribac Na, Sesbania co-culture along with pre-emergence application of Pendimethalin along with two control treatments (weedy free and weedy check). The rice variety Hardinath-1 was used in the experiment. Data regarding the weed flora, weed density, weed dry weight, growth, yield attributes and yield were recorded and analyzed. The highest number of effective tillers per m2 (371.51) and number of grains per panicle (145.43) were obtained in Pendimethalin treated plot and were statistically as par with Sesbania co-culture + Pendimethalin (363.44 m-2 and 140.54 respectively). Higher and statistically similar grain yield was observed in Sesbania co- culture + Pendimethalin (4870kg ha-1) and Pendimethalin treated plots (4780 kg ha-1). The experiment concluded that there was reduction in yield by 66.78 percent due to presence of weed as compared to weed free. Pre-emergence application of Pendimethalin was most beneficial in terms of gross returns, net returns and B:C ratio compared to other weed management practices and hence was most economical.

scholarly journals Effect of Integrated Nutrient Management (INM) Modules on yield, yield attributes and profitability of Indian mustard [Brassica juncea (L.)] in Western Uttar Pradesh

2021 ◽  
pp. 324-330
Author(s):  
Rahul Verma ◽  
P. K. Singh ◽  
Vivek . ◽  
R. K. Naresh ◽  
M. Sharath Chandra ◽  
...  
Keyword(s):  
Brassica Juncea ◽  
Management Practices ◽  
Nutrient Management ◽  
Block Design ◽  
Poultry Manure ◽  
Indian Mustard ◽  
Research Centre ◽  
Integrated Nutrient Management ◽  
Yield Attributes ◽  
Press Mud

A field experiment was conducted to study the effect of integrated nutrient management (INM) modules on indian mustard (Brassica juncea L.) in Western U.P., variety Pusa Vijay at Crop Research Centre (CRC), Main Campus, Modipuram  Meerut, during Rabi season, 2020-21. The soil of experimental field was sandy loam texture, alkaline in nature with pH, low in organic carbon (0.42%) and available nitrogen (181.60 kg/ha), available phosphors (16.50 kg/ha), available potassium (230.47 kg/ha) and available sulphur (7.38 kg/ha). Ten treatments of different nutrient management practices consisting T1 Control, T2 100% RDN (120 kg. N/ha), T3 75% RDN, T4 75% RDN + 25% through Vermicompost (VC), T5 75% RDN + 25% through Poultry Manure (PM), T6 75% RDN + 25% through Press Mud Compost (PMC), T7 75% RDN + 25% through [ VC , PM (1:1) ], T8 75% RDN + 25% through [VC, PMC (1:1) ], T9 75% RDN + 25% through [PM , PMC (1:1)], T10 75% RDN + 25% through [VC , PM, PMC (1:1:1)] were tested in randomized block design with three replications. The experimental results revealed that yield attributes (siliqua length, siliqua plant-1, seeds siliqua-1 and test weight), grain and stover yield (q ha-1). The increment in seed yield with application of 75% RDN + 25% through [VC, PM, PMC (1:1:1)] was 130.98 % over control. The maximum gross return and net return were recorded with the application of 75% RDN + 25% through [VC, PM, PMC (1:1:1)], however B:C ratio was lower than the use of RDF only but in application of  vermicompost, press mud compost and poultry manure enhance soil fertility which improve the productivity and productivity of mustard.

scholarly journals Weed management practices on winter French bean (Phaseolus vulgaris L.) under western Uttar Pradesh conditions

2016 ◽  
Vol 4 (2) ◽  
pp. 275
Author(s):  
Narinder Panotra ◽  
Ashwani Kumar
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
N Uptake ◽  
Uttar Pradesh ◽  
French Bean ◽  
Growth And Yield ◽  
N Losses ◽  
Area Index ◽  
Yield Attributes ◽  
Hand Weeding

<div><p><em>A Field investigation was conducted during the </em><em>Rabi season of 2003-04 and 2004-05 at Baraut, Uttar Pradesh, to find out most suitable weed management practices on winter French bean. Among the 12 weed management treatments in French bean viz. weedy check, hand weeding at 30 days after sowing, weed free, fluchloralin @ 0.75 kg/ha, fluchloralin @ 1.0 kg/ha, fluchloralin @ 0.75 kg/ha with hand weeding at 30 days after sowing, pendimethalin @ 0.75 kg/ha, pendimethalin @ 1.0 kg/ha, pendimethalin @ 0.75 kg/ha with hand weeding at 30 days after sowing, oxyfluorfen @ 0.15 kg/ha, oxyfluorfen 0.20 kg/ha, oxyfluorfen @ 0.15 kg/ha with hand weeding at 30 days after sowing.<strong> </strong>Application of fluchloralin (pre-planting) @ 1.0 kg a.i./ha had maximum weed control efficiency (79.8%), which was at par to  pre-emergence application of pendimethalin1.0 kg/ha (78.7%). The effect of these herbicides were also pronomced in terms of different growth and yield attributes of French bean crop and had maximum number of branches/plant (6.16 to 6.23), leaf area index (1.06 to 1.07), number of pods/plant (5.51 to 5.53) and 100-seed weight (316.2 to 316.7). The highest yield (1.11 to 1.10 t/ha) and N uptake (52.52 to 52.95 kg/ha) was noticed under fluchloralin or pendimethalin applied plot 1.0 kg/ha also it had reduced N losses through weeds. Economic evaluation in terms of returns Rs./Re invested was maximum under fluchloralin or pendimethalin applied plot reveals the significance of these herbicides in western Uttar Pradesh.</em></p></div>

scholarly journals Influence of Farmyard Manure and Jeevamrutha on Growth and Yield of Sunflower

2021 ◽  
pp. 135-141
Author(s):  
M. Chaithra ◽  
G. M. Sujith
Keyword(s):  
Leaf Area ◽  
Seed Yield ◽  
Growth Parameters ◽  
Sandy Loam ◽  
Block Design ◽  
Farmyard Manure ◽  
Growth And Yield ◽  
Area Index ◽  
Yield Attributes ◽  
Loam Soil

A field experiment was conducted during Kharif 2017 at ZARS, University of Agricultural Sciences, Bengaluru to study the influence of different levels of Farm Yard Manure (FYM) and Jeevamrutha on growth and yield of Sunflower in red sandy loam soil. There were nine treatment combinations laid out in factorial randomized complete block design, which were replicated thrice. The experimental results revealed that, the application of FYM at 150 per cent nitrogen equivalent and jeevamrutha at 1500 L ha-1significantly influenced growth parameters like plant height, number of leaves, leaf area, leaf area index and total dry matter production. The interaction effect of FYM and jeevamrutha was significant in enhancing the seed yield of sunflower due to improvement in yield attributes like head diameter, number of seeds per head, hundred seed weight and seed yield per plant.

scholarly journals Effect of integrated nutrient management practices on growth, yield attributes and yield of hyacinth bean in baby corn (Zea mays. L) – hyacinth bean (Lablab purpureus var typicus) cropping system

2019 ◽  
Author(s):  
R. Preetham ◽  
K. Avil Kumar ◽  
A. Srinivas ◽  
A. Manohar Rao ◽  
T. Ram Prakash
Keyword(s):  
Seed Treatment ◽  
Management Practices ◽  
Block Design ◽  
Cropping System ◽  
Research Station ◽  
Lablab Purpureus ◽  
Higher Plant ◽  
Area Index ◽  
Yield Attributes ◽  
Hyacinth Bean

A field experiment was conducted at Horticultural Research Station, Adilabad, Telangana State, India during kharif and rabi seasons of 2015-16 and 2016-17 to study the effect of INM practices on hyacinth bean in baby corn-hyacinth bean cropping system. The experiment was laid out in a randomized block design for baby corn during kharif season of 2015 season with seven treatments comprised of 100% recommended dose of fertilizer (RDF, 150:60:60 N, P2O5 and K2O kg ha-1), 25% N supplemented through Farm Yard Manure or vermicompost + 75% RDF with or without soil application of Azospirillum and Bacillus megaterium @ 5 kg ha-1 each and unfertilized control with 3 replications. Each main treatment was divided into four subplots during rabi season of 2015-16 and 2016-17 for hyacinth bean and the treatments of 100% RDF (20 kg N, 50 Kg P2O5 ha-1) and 75% RDF with or without Bradyrhizobium @ 500 g ha-1 (seed treatment) were imposed in split plot design. Mean data of two rabi seasons revealed that seed treatment with Bradyrhizobium in conjunction with 100% RDF recorded significantly higher plant height, leaf area index, nodule number, dry matter production at harvest, higher number of pods plant 1, maximum pod length, pod weight and higher pod yield, respectively over 100% RDF alone, 75% RDF with or without seed treatment.

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