scholarly journals Effect of Land Configuration and Weed Management on Yield and Yield Attributes of Green Gram (Vigna radiata L)

2019 ◽  
Vol 39 (04) ◽  
Author(s):  
S K Sharma ◽  
Amit Kumar ◽  
Kuldeep Singh ◽  
Naveen Kumar Sharma

To study the effect of land configuration and weed management on yield and yield attributes of green gram, a field experiment was conducted at Hisar during kharif 2016 in strip plot design with four replications. Ridge method of planting recorded significantly higher number of branches plant-1, seeds pod-1, 100 seed weight and seed yield in comparison to flat method of planting. Among the weed management practices, application of pendimethalin 30 EC @ 1.0 kg/ha-PE fb imazethapyr 10 % SL @ 55 g/ha at 15-20 DAS recorded significantly higher number of branches plant-1, seeds pod-1, pods plant-1 and 100 seed weight compared to weedy check. Similarly the same treatment recorded higher yield to the tune of 236, 48 and 18 % over weedy check, pendimethalin 30 EC @ 1.0 kg/ha-PE and Imazethapyr 10 % SL@ 55 g/ha at 15-20 DAS, respectively. Highest net returns (` 24632/ha), BC ratio (2.15) and weed control efficiency (94 %) was also recorded when pendimethalin 30 EC @ 1.0 kg/ha-PE fb imazethapyr 10 % SL @ 55 g/ha at 15-20 DAS of green gram crop was applied.

2013 ◽  
Vol 5 (2) ◽  
pp. 91-96
Author(s):  
MR Sultana ◽  
MA Alim ◽  
MB Hossain ◽  
S Karmaker ◽  
MS Islam

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


Author(s):  
P. Venkata Rao ◽  
A. Subbarami Reddy ◽  
M. V. Ramana

Background: Blackgram is an important crop among kharif pulses and is usually grown on marginal and sub-marginal lands without proper weed management under rainfed situation. Broad bed furrows had greater influence on plant growth over farmers practice. Weed management through mechanical or manual is normally tedious, labour consuming and costlier. Keeping this in view, the present study was envisaged to investigate integrated effect of land configuration and weed management regimes on productivity of urdbean. Methods: A field experiment was carried out during kharif seasons of 2016 and 2017 at Regional Agricultural Research Station, Lam, Guntur on effect of land configuration and weed management on performance of urdbean (Vigna mungo L.Hepper). The treatments included two land configurations i.e., flat bed and broad bed furrow method allotted as horizontal plots and four weed management practices i.e., weedy check, pendimethalin 30 EC @ 1.0 kg a.i ha-1 PE, imazethapyr 10% SL @ 55 g ha-1 at 15-20 DAS and pendimethalin 30 EC @ 1.0 kg a.i ha-1 PE fb imazethapyr 10% SL @ 55g ha-1 at 15-20 DAS allotted as vertical plots replicated four times in a strip plot design. The comparison of treatment means was made by critical difference (CD) at P less than 0.05 by using standard statistical procedures. Result: Based on the results, it can be concluded broad bed method of land configuration proved its superiority over flat bed method by producing 12.8 per cent higher grain yield besides empowering growth and yield attributes. Among the weed management practices, the highest grain yield (1280 kg ha-1) recorded with pendimethalin 30 EC @ 1.0 kg a.i ha-1 PE fb imazethapyr 10% SL @ 55g ha-1 at 15-20 DAS along with maximum monetary returns and B:C can be recommended for urdbean.


Author(s):  
M. B. Hossain ◽  
M. S. Alam ◽  
M. A. Ripon

The experiment was carried out at Agronomy Field laboratory, Department ofAgronomy and Agricultural Extension, university of Rajshahi, to study the effect of irrigation and sowing method on yield and yield attributes of mustard. The experiment consists of two factors i) irrigation viz. no irrigation (I0), one irrigation (I1)and two irrigations (I2) ii) sowing method viz. line sowing method (M1) and broadcasting method (M2). A split- plot design was used for the experiment by assigning the irrigation on the main plots and sowing method to the sub plots with three replications. Irrigation had significant effect on all the yield and yield contributing characters. The highest plant height, number of branches plant-1, filled siliqua plant-1, sliqua length, number of seed siliqua-1, 1000-seed weight and stover yield were obtained from I2 (two irrigations) and consequently it produced the highest seed yield. Sowing method also had significant influence on almost all the yield and yield contributing characters. All the yield contributing characters except number of unfilled siliqua plant-1were found best at line sowing method (M1) and consequently it produced the highest seed yield. However it could be noted from the study that the combination of two irrigations with line sowing method is better to get higher yield of mustard.


2020 ◽  
Vol 5 (4) ◽  
pp. 535-542
Author(s):  
Rakshya Poudel ◽  
Santosh Marahatta ◽  
Santosh Kandel ◽  
Purnima Puri

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.


Author(s):  
Kuldeep Singh ◽  
Hardev Ram ◽  
Rakesh Kumar ◽  
R.K. Meena ◽  
Rakesh Kumar ◽  
...  

Background: Weeds are prime factor that adversely effects on growth, quality and yield of mungbean during summer and rainy season. Being a short duration crop, it faces heavy weed competition right from the early growth stages to harvesting. The critical period of crop weed competition in mungbean was initial 25-30 days, yield may be reduce up to 50-90% if weeds not manage at this stage. Hence, there is a need to find out the successful weed management strategies to realize higher growth and yield. The progressive transformation of agriculture concerning intensive use of herbicides is gaining status in recent years due to easy, lower cost, timeliness and successful controlling weeds. Therefore, keeping above information in view, the present study was undertaken to assess the effect of different weed management practices in summer mungbean under zero tillage condition to find out the better weed management, higher productivity and profitability.Methods: In this field-laboratory investigation during summer season, 2019, different herbicides were applied to manage weeds in mungbean. Eight treatments were applied based on various application windows. In the field and laboratory, the collected samples were determined for crop weed competition, yield attributes, yields and net returns. Result: The results revealed that weed free treatment was recorded lowest weed population at 30 DAS and harvest (1.8 and 2.9), weed dry weight (1.1 and 1.9g) and highest weed control efficiency (96.3 and 94.9%) followed by Pendimethalin (PE) fb one HW and Shaked (Propaquizafop + Imezathyper) application. The similar results also observed in nutrients removed by weeds. Among yield attributes, weed free treatment recorded the longest pod length, no. of pods/plant, no. of seeds/pod and test weight (7.9, 21.0, 9.7 and 43.0g, respectively) which was at par with Pendimethalin (PE) fb one HW and Shaked (Propaquizafop + Imezathyper) application. The magnitude of seed yield was increased under weed free (10.1 q/ha) and Shaked (Propaquizafop + Imezathyper) (9.5 q/ha) treatments by 127.9 and 113.8%, respectively over weedy check. Application of Shaked (Propaquizafop + Imezathyper) recorded highest net returns (Rs 55,079/ha) and B: C (2.8) over rest of the treatments. It can concluded that application of Shaked (Propaquizafop + Imezathyper) @ 2 L/ha at 20 DAS recommended for better weed control, higher yield and net returns of summer mungbean under zero tillage condition.


Author(s):  
Arvind Verma ◽  
Roshan Choudhary

A Field experiment was conducted at Agronomy instructional Farm, Rajasthan College of Agriculture, MPUAT, Udaipur (Rajasthan) during 2016-17 to find out the impact of new generation herbicides in green gram.  The results revealed that all growth and yield characters of blackgram were significantly affected by distinct weed control practices. A similar trend was also observed in weed parameters. Higher seed yield (13.8 qha-1) and higher weed control efficiency (88.97%) were recorded under application of acifluorfen sodium + clodinafop propargyl (370 g a.i. ha-1) at 3-4 leaf stage and which comparable with pre-emergence application of pyroxasulfone +pendimethalin (TM) 127.5+1000 g a.i/ha, imazethapyr+ quizalofop (TM) use at 70 + 60 g a.i/ha at 3-4 leaf stage, imazethapyr 70 g a.i/ha 3-4 leaf stage, imazethapyr + imazamox (RM) use at 70 g a.i/ha at 3-4 leaf stage, pendimethalin fb quizalofop 1000 + 60 at pre-emergence & 3- 4 leaf stage, imazethapyr + pendimethalin (RM) 1000 g a.i/ha as pre-emergence, propaquizfop 75 g a.i/ha at 3-4 leaf stage, weedy check and two hand weeding twice at 20 & 40 DAS. They also recorded improvement in yields and net returns by 65.22% over weedy check. These herbicide ready-mixes may be a promising weed management strategy for the green gram grown in the Southern Rajasthan.


2019 ◽  
Vol 4 (3) ◽  

The present study was undertaken with a view to study the effect of plant density on yield and yield attributes of two soybean varieties in kharif–II season. The experiment was conducted in kharif-II season 2012 at mymensingh with two soybean varieties, namely PB-1 (Shohag) and G-2 (Bangladesh soybean-4) and six plant densities, viz; 20, 40, 60, 80, 100 and 120 plants m-2 established using an equidistant (square) planting pattern of 22.4cm x 22.4 cm, 15.8 cm x 15.8 cm, 12.9 cm x12.9 cm, 11.2 cm x 11.2 cm, 10 cm x 10 cm and 9.1 cm 9.1 cm, respectively. The experiment was laid out in a split-plot design with varieties in main-plots and plant densities in sub-plots. The treatments were replicated three times. Increased plant density increased plant height, number of nodes plant-1, total dry matter, seed yield (1.02 t ha-1) and Stover yield (1.15 t ha-1) 80 to 100 plants m-2 and then decreased with increased plant density. Again increased plant density linearly decreased in number of branches plant-1, fertile pods plant-1, non-fertile pods plant-1, number of seeds plant-1, seed yield plant-1 and 100- seed weight up to 120 plants m-2 depending on variety and season. The study concludes that the highest yield of soybean in kharif –II season could be obtained from varietyPB-1 with a plant density of 100 plants m-2 and 80 plants m-2in G-2.


2017 ◽  
Vol 9 (3) ◽  
pp. 1848-1853
Author(s):  
Om Prakash Shivran ◽  
Manoj Kumar Singh ◽  
Nikhil Kumar Singh

Horizontal expansion of pulse production can be achieved by introduction of short duration pulse crop like, green gram (Vigna radiata (L.) R. Wilczek) under agri-horti system. Response of green gram under different agri-horti system and weed management practices is lacking. Therefore, an agronomic trial was conducted during monsoon season of 2011 at Agricultural Research Farm, Rajeev Gandhi South Campus, Banaras Hindu University, Barkachha, Mirzapur, Uttar Pradesh, in split plot design, consisting of three agri-horti systems [guava, custard apple and open field] in main plots and six weed management practices [pendimethalin 1000 g/ha (PE), imazethapyr 125 and 200 g/ha (PoE), 1-HW (20 DAS), 2-HW (15 and 30 DAS) and weedy check] were assigned to sub plots and replicated thrice. Green gram variety ‘Samrat’ was sown as per standard agronomic package of practices on August 5, 2011 in open field as well as within the alleys of, 5-year old, guava and custard apple agri-horti system. Agri-horti systems, did not significantly (P<0.05) affect the growth, yield attributes, yield and nutrient content in green gram. The weed management practices significantly affected the CGR, RGR and yield of green gram. Application of imazethapyr 200 g/ha recorded 79.08% reduction in weed biomass and 11.38% lower seed yield as compared to weedy check and 2-HW (15 and 30 DAS), respectively. 2-hand weeding effectively reduced weed biomass (88.07%) and showed highest yield (888.79 kg/ha), and CGR (13.61 g/day) followed by imazethapyr 200g/ha yield (787.66 kg/ha) and CGR (13.14 g/day).


Author(s):  
Rakesh Kumar ◽  
U. P. Singh

An experiment was conducted during at Varanasi to find out the effect of residue management with Trichoderma application and weed management practices (W1- - Control, W2 -Hand weeding at 30 and 45 DAS, W3 - Isoproturon + 2,4-D (1.0 + 0.5 kg ha-1) at 30 DAS, W4 - Fenoxaprop 120 g ha-1 fb Metsulfuron 4 g ha-1 ) on growth, yield attributes and yield of wheat(Triticum aestvium L.) with weed density, WCE and net returns. The residue retention with Trichoderma application produced significantly higher crop growth, yield attributes, grain and straw yield as compared to residue retention alone and residue removal. Among the weedicide option fenoxaprop fb metsulfuron treatment was found most effective in controlling weed population and produced significantly higher grain (3355.06 and 3722.27 kg-1 ha) and straw yields (5050.23 and 5332.77 kg-1 ha) and higher weed control efficiency (74.19 and 75.07 %). Out of herbicides, Isoproturon + 2, 4-D gave the highest net return as compared to fenoxaprop fb metsulfuron followed by hand weeding twice.


Author(s):  
Rakesh Kumar ◽  
U. P. Singh

An experiment was conducted during at Varanasi to find out the effect of residue management with Trichoderma application and weed management practices (W1- - Control, W2 -Hand weeding at 30 and 45 DAS, W3 - Isoproturon + 2,4-D (1.0 + 0.5 kg ha-1) at 30 DAS, W4 - Fenoxaprop 120 g ha-1 fb Metsulfuron 4 g ha-1 ) on growth, yield attributes and yield of wheat(Triticum aestvium L.) with weed density, WCE and net returns. The residue retention with Trichoderma application produced significantly higher crop growth, yield attributes, grain and straw yield as compared to residue retention alone and residue removal. Among the weedicide option fenoxaprop fb metsulfuron treatment was found most effective in controlling weed population and produced significantly higher grain (3355.06 and 3722.27 kg-1 ha) and straw yields (5050.23 and 5332.77 kg-1 ha) and higher weed control efficiency (74.19 and 75.07 %). Out of herbicides, Isoproturon + 2, 4-D gave the highest net return as compared to fenoxaprop fb metsulfuron followed by hand weeding twice.


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