scholarly journals Residual effect of nitrogen levels and weed control methods on growth, yield and economics of wheat grown after rice

2019 ◽  
Vol 11 (2) ◽  
pp. 327-332
Author(s):  
Vipin Kumar Shukla ◽  
H. S. Kushwaha ◽  
S. K. Singh ◽  
D. K. Malviya ◽  
R. K. Tiwari
Keyword(s):  
Grain Yield ◽  
Weed Control ◽  
Growth Yield ◽  
Residual Effect ◽  
Control Methods ◽  
Yield Attributes ◽  
Nitrogen Levels ◽  
Main Plot ◽  
Hand Weeding ◽  
Plot Design

A field experiment was laid out in split plot design on residual effect of treatments comprising three nitrogen levels viz. N75 (N1), N100 (N2) and N125 (N3) in main-plot treatments and seven weed control treatments viz. (W1-butachlor + 1 Hand Weeding, W2-butachlor + 2 Mechanical Weeding, W3-butachlor + 2,4-D, W4-bispyribac sodium, W5-butachlor + bispyribac sodium, W6-HW-2, W7- control) as sub-plot treatments conducted during 2015-16 and 2016-17 at the Rajaula Agriculture Farm, MGCGVV, Satna (M.P.) to study the residual effect of N-levels and weed control methods on growth, yield and economics of wheat grown after rice. In case of succeeding wheat, the residual 125 kg N/ha performed the best with respect to growth, yield-attributes with the result 31.11 q/ha grain yield and Rs.33509/ha income. While, under sub plot treatments, Hand weedings two times were recorded significant grain yield (28.66 q/ha) and straw yield (38.17 q/ha) at (P <0.05) over control. However it was found non-significant different and also noticed higher over rest treatments. In this succession, Butachlor + 2, 4-D (0.80 kg/ha) was higher but in second position and similar trend was observed in successive way with rest of treatments.

scholarly journals Yield and Yield Attributing Characters of Promising Rice Genotypes under Dry Direct Seeded Conditions as Affected by Varieties and Weed Control Methods

2018 ◽  
Vol 6 (4) ◽  
pp. 313-318
Author(s):  
Dev Kumar Saphi ◽  
Dil Raj Yadav ◽  
Rajib Kumar Yadav ◽  
Rajendra Yadav
Keyword(s):  
Weed Control ◽  
Field Experiments ◽  
Control Methods ◽  
Rice Varieties ◽  
Human Labour ◽  
Main Plot ◽  
Direct Seeded ◽  
Rice Genotypes ◽  
Hand Weeding ◽  
Plot Design

Dry direct seeded rice is an alternative to the farmers in the context of climate change and inputs scarcity especially labor. However, weeds are the major problem in dry direct seeded conditions competing with the different resources provided to the crop. Hence, field experiments were conducted for two consecutive years 2015 and 2016 in the experimental field of Rice Research Program, Hardinath, Dhanusha to identify the appropriate herbicides for DSR. The experiment was laid out in a split plot design and treatments were replicated thrice. Three varieties of rice namely Ciherang Sub-1, IET 16775 and Sukhkhadhan-3 were treated as main plot factors while five levels of weed control methods (Oxadiargyl @ 100 g a.i./ha as pre-emergence followed by Fenoxaprop @ 90 g a.i./ha with safener, Pendimethalin @ 1000 g a.i./ha as pre-emergence followed by Bispyribac sodium @ 25 g a.i/ha at three weeks after seeding, Pendimethalin @ 1000 g a.i./ha as pre-emergence followed by Pyrazosulfuron ethyl @ 25 g a.i.ha + Bispyribac sodium @ 25 g a.i./ha at three weeks after seeding, hand weeding and weedy check) were treated as sub-plot factors. The statistical analysis showed that the effect of weed control methods on yield and yield attributing parameters of the tested rice varieties was significant. Out of the tested treatments hand weeding yielded significantly higher grain yield (5.4 t/ha) followed by herbicides Pendimithalin fb Pyrazosulfuron ethyl + Bispyribac sodium; which reduced the weed density and was comparable with hand weeding. The interaction effect of weed control methods and varieties was found non-significant. Pendimithalin fb Pyrazosulfuron ethyl + Bispyribac sodium was found to control broad spectrum of weeds and also reduced the human labour drudgery and increasing the rice yield than the other herbicides in direct seeded rice. Int. J. Appl. Sci. Biotechnol. Vol 6(4): 313-318

scholarly journals Comparison of weed control methods on infestation and crop productivity in transplant aman rice

2017 ◽  
Vol 27 (4) ◽  
pp. 418-427 ◽  
Author(s):  
MN Hasan ◽  
UK Sarker ◽  
MR Uddin ◽  
AK Hasan ◽  
MS Kaysar
Keyword(s):  
Grain Yield ◽  
Weed Control ◽  
Control Method ◽  
Dry Weight ◽  
Crop Productivity ◽  
Digitaria Sanguinalis ◽  
Rice Varieties ◽  
Main Plot ◽  
Hand Weeding ◽  
Plot Design

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from June to December 2014 with a view to compare the efficacy of weeding method on the performance of transplanted aman rice varieties. Four transplanted aman rice varieties viz. Kalijira, BRRI dhan34, BRRI dhan52 and BRRI dhan64 and five different weeding treatments namely no weeding, two hand weeding at 20 & 40 days after transplanting (DAT), mechanical weeding by Japanese rice weeder at 20 and 40 DAT, soil applied pre-emergence herbicide Topstar 400 SP (Oxadiargyl 400 g/l) @ 190 ml ha-1 once at 3 days before transplanting and foliar applied post-emergence herbicide Manage @ 250g ha-1 at 6 days after transplanting were evaluated. The experiment was laid out in a split plot design assigning weed control method in the main plot and variety in the sub plot with three replications. Weed population was significantly influenced by variety and methods of weeding. The important weeds of the experimental plots were Digitaria sanguinalis, Leersia hexandra, Paspalum scrobiculatum, Echinochloa crusgalli, Monochoria vaginalis, Ludwigia hyssopifolia, Polygonum orientale, Eclipta alba, Marsilea crenata and Fimbristylis miliacea. The effect of weeding treatments on dry weight of weeds was significant. Hand weeding at 20 and 40 DAT showed the lowest dry weight of weeds followed by post-emergence herbicide Manage at 6 DAT and no weeding produced the highest dry weight of weeds. Among the weeding treatments hand weeding at 20 and 40 DAT performed the best for all the crop characters including grain yield (3.90 t ha-1) followed by the post-emergence herbicide manage and no weeding showed the lowest performance (3.06 t ha-1). Among the varieties, BRRI dhan34 produced the highest grain yield (4.33 t ha-1) and Kalijira yielded the lowest (2.04 t ha-1). The interaction between variety and weeding show that all the varieties produced higher grain yield with two hand weeding at 20 and 40 DAT than other weeding treatments. The results suggested that BRRI dhan34 might be grown with two hand weeding at 20 and 40 DAT as well as early post-emergence herbicide Manage for effective in controlling weeds and for better yield of transplant aman rice.Progressive Agriculture 27 (4): 418-427, 2016

scholarly journals Effect of Variety and Weed Management Practices on Yield and Yield Attributes of Wheat

2013 ◽  
Vol 5 (2) ◽  
pp. 91-96
Author(s):  
MR Sultana ◽  
MA Alim ◽  
MB Hossain ◽  
S Karmaker ◽  
MS Islam
Keyword(s):  
Natural Resources ◽  
Grain Yield ◽  
Weed Management ◽  
Yield Components ◽  
Management Practices ◽  
Yield Attributes ◽  
Free Treatment ◽  
Yield And Yield Components ◽  
Hand Weeding ◽  
Plot Design

An experiment was conducted at Agronomy Field Laboratory of Rajshahi University to evaluate the effect of variety and weeding regime on yield and yield components of wheat. Four varieties viz. Prodip -V1, Gourab -V2, Shatabdi -V3, Bijoy -V4 and five weeding regime viz. a) No weeding -W0, b) Weed free -W1, c) One hand weeding at 20 DAS -W2, d) Two hand weeding (1st at 20 DAS and 2nd at 42 DAS) -W3 and e) Lintur 70 WG @ 250 g ha-1 -W4 were included as treatments in the experiment. The experiment was laid out in a Split-plot Design with three replications. The results revealed that Prodip produced the highest grain yield (5.33 t ha-1) followed by Gourab (4.85 t ha-1), while the lowest grain yield (3.98 t ha-1) was obtained from Shatabdi. The highest grain yield (5.09 t ha-1) was obtained in Weed free (W1) followed by W3 (Two hand weeding) (4.89 t ha-1) and the lowest grain yield (4.13 t ha-1) was obtained in no weeding treatment (W0). The highest grain yield (5.64 t ha-1) was obtained from the combination of Prodip and weed free treatment (V1W1) and the lowest (3.57 t ha-1) was obtained from the combination between Shatabdi and no weeding treatment (V4W0).DOI: http://dx.doi.org/10.3329/jesnr.v5i2.14800 J. Environ. Sci. & Natural Resources, 5(2): 91-96 2012

Integration of Chemical and Cultural Methods for Weed Control Management in Soybean (Glycin Max. L)

2019 ◽  
Author(s):  
R L Rajput ◽  
Brajraj Singh Kasana
Keyword(s):  
Weed Control ◽  
Seed Yield ◽  
Growth Yield ◽  
Yield Attributes ◽  
Pooled Data ◽  
Cultural Methods ◽  
Weed Control Efficiency ◽  
Hand Weeding ◽  
College Farm ◽  
Control Management

A field experiment was conducted during kharif season 2012 and 2013 at Rajmata Vijayaraje Scindia Krishi Vishwa Vidhyalaya RVSKVV, College Farm Gwalior (M.P.) to asses the suiTable method for weed control in soybean. On the basis of two years pooled data results weeding twice at 20 and 40 DAS significantly highest growth, yield attributes and seed yield as compared to the un-weeded control and was at par with pendimethalin (750 g a.i./ha) + one hand weeding, trifluralin (1000 g a.i./ha) + one hand weeding at 20 DAS and imezathapyr(100 g a.i./ha) + one hand weeding at 40 DAS. These treatments also recorded lower weed dry biomassand higher weed control efficiency. Pendimethalin (750 g a.i./ha) + one hand weeding at 20 DAS resulted higher net return (` 63500) and B:C (2.58) ratio followed by trifluralin + one hand weeding and hand weeding twice at 20 and 40 DAS. In addition to hand weeding twice, pre emergence herbicide Pendimethalin (750g a,i/ha) + one hand weeding at 20 DAS can be effectively used as an alternative for controlling weeds for obtaining optimum seed yield in soybean.

EFFICACY OF AZOTOBACTER INOCULATION UNDER GRADED DOSES OF NITROGEN FERTILIZER IN RELATION TO GROWTH, YIELD AND NITROGEN UTILIZATION EFFICIENCY OF OAT (Avena sativa L.)

2000 ◽  
Vol 48 (2) ◽  
pp. 165-170 ◽  
Author(s):  
D. Jatasara ◽  
D. Rana ◽  
R. Sheoran
Keyword(s):  
Grain Yield ◽  
Winter Season ◽  
Growth Yield ◽  
Nitrogen Utilization ◽  
Utilization Efficiency ◽  
Straw Yield ◽  
Nitrogen Levels ◽  
Pooled Data ◽  
Nitrogen Utilization Efficiency ◽  
Plot Design

A field experiment was conducted at CCS Haryana Agricultural University, Hisar, India during the winter season for three consecutive years from 1995–96 to 1997–98 to study the effect of different nitrogen levels and Azotobacter inoculation on the growth, grain yield and nitrogen utilization efficiency of two varieties of oat. The experiment was laid out in a split-plot design with three replications. The results revealed that oat variety JHO-822 was superior to OS-7 for grain yield. However, the variety OS-7 produced a higher straw yield than JHO-822. Increasing levels of nitrogen up to 60 kg/ha significantly increased the grain and straw yields over the lower doses on a pooled data basis. Nitrogen application also had a beneficial effect on the yield attributing traits of oat. Nitrogen utilization efficiency was highest at 60 kg N/ha and declined thereafter. Azotobacter inoculation was found beneficial in terms of increased grain and straw yield and higher nitrogen utilization efficiency over the uninoculated treatments.

Evaluation of sowing methods and nitrogen levels for grain yield and components of durum wheat under arid region of Egypt

2021 ◽  
Vol 26 (6) ◽  
pp. 3031-3039
Author(s):  
MOHAMED MOSALEM ◽  
YASER MAZROU ◽  
SHIMAA BADAWY ◽  
MOHAMED ABD EL-RAHMAN ABD ULLAH ◽  
MOHAMED GHONEIM MUBARAK ◽  
...  
Keyword(s):  
Grain Yield ◽  
Durum Wheat ◽  
Row Spacing ◽  
Nitrogen Levels ◽  
Loam Soil ◽  
Main Plot ◽  
1000 Grain Weight ◽  
N Fertilizer Rate ◽  
Plot Design ◽  
Private Farm

The present experiment was conducted at private farm during 2018/19 and 2019/20 seasons. The investigated area lies within the extremely arid belt, having long hot summer and short warm winter. The main goal of this investigation was to evaluate the effect of different sowing methods on yield components of wheat, using split plot design with three replications. Sowing methods in main plot were broadcasting method, row spacing 10, 15 and 20 cm apart). Nitrogen fertilizer levels in sub plot were 60, 75 and 90 kg N fed-1 (fed = 4200 m-2). The increase percentage due to row spacing at 20 cm apart (M4) compared to broadcasting method (M1) were (23.30 & 26.74%) for spike length; (5.11 & 6.94 %) for 1000 grain weight and (8.02 & 7.74%) for grain yield and according ally (3.07 & 3.08%) for harvest index in both seasons, respectively. Overall, from the present study the sowing method in rows with 20 cm apart and the optimum N fertilizer rate (90 kg fed-1) for durum wheat production in the soils of Qasir, Dakhala oasis on silt loam soil was the best treatment.

scholarly journals Integration of chemical and manual control methods for sustainable weed management in inbred and hybrid rice

2017 ◽  
Vol 15 (2) ◽  
pp. 158-166
Author(s):  
Fahima Sultana Popy ◽  
AKM Mominul Islam ◽  
Ahmed Khairul Hasan ◽  
Md Parvez Anwar
Keyword(s):  
Grain Yield ◽  
Weed Control ◽  
Weed Management ◽  
Management Practices ◽  
Hybrid Rice ◽  
Block Design ◽  
Yield Attributes ◽  
Free Treatment ◽  
Randomized Complete Block Design ◽  
Hand Weeding

Herbicidal weed control is gaining popularity in the developing countries but its efficacy still remains unclear. Therefore, an experiment was conducted to find out appropriate weed management practices for inbred and hybrid rice. The experiment comprised of inbred and hybrid varieties (two of each), and eight weed control treatments arranged in randomized complete block design with three replicates. Hybrid varieties performed better in terms of yield attributes and yield than inbred varieties. The highest grain yield (5.3 t ha−1) was obtained from the hybrid Agrodhan-12 and the lowest one (4.3 t ha−1) was from inbred Binadhan-7. Weed free treatment resulted in the highest grain yield (6.1 t ha−1) and the lowest one was with weedy treatment (1.96 t ha−1). The highest grain yield was obtained from Agrodhan-12 in weed free condition (6.9 t ha-1), while the lowest value was in inbred BRRI dhan49 under weedy condition (1.73 t ha−1). Weed-free treatment and the treatments of Pretilachlor fb Penoxsolum, Pretilachlor fb hand weeding, and Pendimethalin fb hand weeding showed similar performances in reducing weed density and eventually resulted in similar and the highest grain yield. Based on these results it may conclude that Pretilachlor applied at 2 days after transplanting (DAT) fb Penoxsolum at 21 DAT is the best weed management option. But from sustainability viewpoint, Pretilachlor or Pendimethalin applied at 2 DAT along with one hand weeding at 35 DAT may be recommended for effective weed management in inbred and hybrid rice during monsoon season.J. Bangladesh Agril. Univ. 15(2): 158-166, December 2017

scholarly journals Effect of Bio Fertilizers and Inorganic Fertilizers on Growth, Productivity and Quality of Bread Wheat Cultivars

2018 ◽  
Vol 51 (4) ◽  
pp. 1-16 ◽  
Author(s):  
E.M. Hafez ◽  
S.A. Badawy
Keyword(s):  
Grain Yield ◽  
Nitrogen Fertilizer ◽  
Crop Production ◽  
Nutrient Management ◽  
Management Strategies ◽  
Growth Yield ◽  
Wheat Cultivars ◽  
Yield Attributes ◽  
Nitrogen Levels ◽  
Biological Yield

Abstract Integrated nutrient management strategies involving chemical and biological fertilizer is a real challenge to stop using the high rates of agrochemicals and to enhance sustainability of crop production. In order to study the effects of biofertilizers (Cerialin and Nitrobein) and chemical nitrogen levels (0, 85,170 and 250 kg N ha−1) on yield and yield attributes of two wheat cultivars (Sakha 94 and Gemmeiza 10), an agricultural experiment in the form of strip-split factorial design with three replications was conducted in Kafr El-Sheikh region, Egypt, in 2014/2015 and 2015/2016 growing seasons. The objective of this study was evaluation of the effects of these fertilizers separately and in integrated forms, and setting out the best fertilizer mixture. The results showed that treatment with biofertilizers and chemical nitrogen increased the growth, yield attributes, biological and grain yield. Both grain and biological yield produced a better result during the combination of nitrogen fertilizer and biofertilizers than using either method alone. Using biofertilizers increased biological yield through increase in number of grains spike−1, number of spikes m−2 and 1000 grain weight, which cause to increase in grain yield with significant changes in harvest index, as well as protein content. We may conclude that using biofertilizers (Cerialin or Nitrobein) and chemical nitrogen fertilizer (170 or 250 kg N ha−1) together had the maximum impact on yield. Then, we can decrease use of chemical fertilizers through using biofertilizers.

Preceding (Rice-Okra) Crops Herbicide Residual Effects on Weed, Growth, Yield and Economics of Succeeding Blackgram Under Different Ecosystem

2020 ◽  
Author(s):  
N. Bommayasamy ◽  
C. R. Chinnamuthu
Keyword(s):  
Weed Control ◽  
Field Experiments ◽  
Growth Yield ◽  
Residual Effect ◽  
Dry Weight ◽  
Residual Effects ◽  
Weed Growth ◽  
Weed Control Efficiency ◽  
Island Ecosystem ◽  
Hand Weeding

Field experiments were carried out during summer seasons of 2017 and 2018 to study the effect of preceding (Rice-Okra) crops herbicide residue on weed, growth, yield and economics of succeeding blackgram. Residual effect of butachlor at 1.25 kg/ha on 3 days after transplanting (DAT) fb hand weeding (HW) on 40 DAT imposed in the first season rice crop and followed by hand weeding (HW) twice at 20 and 40 days after sowing (DAS) (T6) in okra and blackgram significantly influenced the reduction of weed dry weight accumulation by 8.75 and 7.44 times in mainland and island ecosystem, respectively at 20 DAS. The same treatment recorded the highest weed control efficiency (WCE) of 88.6, 86.5 and 86.2, 80.7 % observed at 20 and 40 DAS under mainland and island ecosystem, respectively. Among, the weed control treatments, residual effect of butachlor at 1.25 kg/ha on 3 DAT fb HW on 40 DAT to rice and HW twice at 20 and 40 DAS (T6) to okra and blackgram has recorded 64.8 and 65.0% higher seed yield of blackgram under main and island ecosystem, respectively.

scholarly journals Effect of Rifit, Ronstar and Machete on the growth, yield and yield attributes of BR28 paddy grown in Boro season

2013 ◽  
Vol 6 (1-2) ◽  
pp. 1-10
Author(s):  
AB Ziauddin Hossain ◽  
MA Rahman
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Growth Yield ◽  
Yield Attributes ◽  
Normal Dose ◽  
Flag Leaves ◽  
Yield And Yield Components ◽  
Hand Weeding ◽  
Different Doses

In the present investigation BR28 paddy was grown in the Boro season. Three herbicides: Rifit 500 EC, Ronstar 25 EC and Machete 5G were applied in different doses and studied their effects on the control of weeds and ultimate growth, yield and yield components of Boro paddy. Eleven different treatments viz.: T1 (control, no herbicide was used), T2 (only hand weeding was done), T3 (Rifit normal dose), T4 (double of Rifit normal dose), T5 (half of Rifit normal dose), T6 (Ronstar normal dose), T7 (double of Ronster normal dose), T8 (half of Ronster normal dose), T9 (normal dose of Machete), T10 (double of Machete normal dose) and T11 (half of Machete normal dose) were used in the experiment. The number of tillers, length per tiller, length per panicle, area of flag leaves, number of filled grains, percentage of filled grains, straw and grain yield per hectare were found maximum at T3 where normal dose of Rifit 500 EC was applied. DOI: http://dx.doi.org/10.3329/cujbs.v6i1-2.17077 The Chittagong Univ. J. B. Sci.,Vol. 6(1&2):01-10, 2011

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