scholarly journals Studies on the Effect of Land Configuration & Weed Management Practices on Different Growth & Yield Parameters of Rabi Planted Lentil (Lens Culinaris) in Dehradun

Author(s):  
Sonali Dimri ◽  
◽  
Priyanka Bankoti
Author(s):  
B.R. Manjith Kumar ◽  
S. S. Angadi

A field experiment was conducted to study the effect of tillage, mulching and weed management practices on growth, yield and uptake of nutrients by chickpea during rabi 2010 and 2011 at MARS, UAS Dharwad, Karnataka. Conventional tillage increased various growth, yield parameters and chickpea yield and also nutrient uptake and nitrogen use efficiency over minimum and zero tillage practices. Significantly higher gross return, net return and B:C ratio were recorded in conventional tillage as compared to minimum and zero tillage practices. Mulching practice showed higher growth, yield and yield parameters of chickpea and also nutrient uptake and economics over minimum and zero tillage practices. Significantly higher growth, chickpea yield and yield parameters, nutrient uptake, gross return, net return and B:C ratio were recorded in application of pendimethalin as compared to other weed management practices.


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):  
A.A. Chavan ◽  
W.N. Narkhede ◽  
H.S. Garud

Background: Weeds are widely reported as a key constraint in organic agriculture. Soybean-chickpea is important cropping sequence adopted in Maharashtra State under irrigated condition. Weed management is a serious problem in both the crop and it mostly controlled through chemical weed control. Today, widespread use of herbicides has resulted in purporated environmental and health problem as well as residual problems to succeeding crops. Now a days residue free food requirement is high. In organic farming cultural and mechanical methods are necessary to break the weed cycle. So, keeping this point in view present investigation was carried out to evaluate organic weed management practices on growth, yield and weed control in soybean-chickpea sequence under irrigated condition. Methods: A field experiment was conducted during Kharif and rabi seasons of 2017-18 and 2018-19. The present investigation consisted of ten weed management practices viz. two hand weeding at 20-25 and 45-50 DAS, one hoeing 20-25 DAS + one hand weeding at 45-50 DAS, soybean + sunhemp incorporation after 35-40 DAS in kharif season and chickpea + safflower (2:1) in rabi season, stale seed bed + reduced spacing + 2 tonne of wheat straw + one hand weeding at 25 DAS, soil mulch at the time of sowing + one hand pulling at 25 DAS, incorporation of neem cake 1.5 tonne/ ha 15 days before sowing + one hand weeding at 25 DAS, soil solarization with 25 μ polythene mulch during summer + one hand weeding at 25 DAS, mulching with straw, weed free and weedy check. Result: The higher values of growth attributes was recorded by weed free treatment which was on par with two hand weeding at 20-25 and 45-50 DAS and soil solarization with 25 μ polythene mulch during summer + one hand weeding at 25 DAS and significantly superior over rest of the treatments during both the year study. Application of stale seed bed with reduced spacing and 2 tonne of wheat straw along with one hand weeding 25 DAS recorded higher soybean equivalent yield followed by soybean + sunhemp incorporation (35-45DAS) in kharif and chickpea + safflower (2:1) in rabi season during both the year. The lower weed density, dry weight and highest weed control efficiency at 40 days after sowing for both monocot and dicot weeds was recorded by weed free treatment followed by soil solarization with 25 μ polythene mulch during summer + one hand weeding at 25 DAS in soybean and chickpea during both the year.


Author(s):  
Govind Kumar ◽  
Magan Singh ◽  
Rakesh Kumar ◽  
Koushik Paul ◽  
Pooja Gupta Soni ◽  
...  

A field experiment was conducted at Forage Research and Management Centre, NDRI, Karnal during <italic>rabi</italic> season in 2013-14 to study the effect of nitrogen application and weed management on growth and yield of fodder turnip (<italic>Brassica compestris</italic> var. rapa) with four levels of nitrogen (0, 50, 100, and 150 kg N/ha) and four weed management practices (pendimethalin @ 1.0 kg a.i./ha, hand weeding, isoproturon @ 0.75 kg a.i./ha and weedy check) in split plot design. Among the nitrogen treatments 150 kg nitrogen/ha gave the highest growth, yield and better quality of fodder turnip. Application of pendimethalin @1.0 kg a.i. proved better in terms of growth and yield of turnip. Weed control efficiency was 65% with 150 kg N/ha and 83.23% with pendimethalin 1.0 kg a.i./ha.


Author(s):  
Sourav Gupta ◽  
Mukesh Gupta ◽  
S. S. Tomar ◽  
G. S. Rawat ◽  
Jyotimala Sahu ◽  
...  

The field experiment carried out during kharif seasons of 2015 and 2016 at Research Farm, College of Agriculture, RVSKVV, Gwalior; Madhya Pradesh indicated that HG 2-20 (V2) was significantly superior under weed control efficiency, crop growth and yield attributes, seed yield and economics over HG 563 (V1). 30 cm x 10 cm (S1) crop geometry observed significantly effective over 45 cm x 6.5 cm (S2). Weed free situation (W5) was significantly superior in similar parameters; while lower values were observed under weedy plot (W6). Among herbicidal treatments; Imazethapyr 35% WG + Imazamox 35% WG (Pre-mix) @ 40 g a.i./ha (W4) followed by Imazethapyr 10% EC @ 75 g a.i./ha (W3) were achieved statistically at par and significantly effective results over rest of the treatments. In case of interaction; the significantly superior values were registered under interaction of HG 2-20 (V2) with 30 cm x 10 cm (S1) to weed free situation (W5) over rest of the interactions. Among interaction of herbicidal treatments with varieties and crop geometries; Imazethapyr 35% WG + Imazamox 35% WG (Pre-mix) @ 40 g a.i./ha (W4) combined with HG 2-20 (V2) and 30 cm x 10 cm (S1) earned significantly effective over other interactions.


Sign in / Sign up

Export Citation Format

Share Document