scholarly journals Effect of seed treatment and foliar spray with fungicides in controlling black point disease of wheat

1970 ◽  
Vol 34 (3) ◽  
pp. 425-434 ◽  
Author(s):  
PK Malaker ◽  
IH Mian

The efficacy of seed treatment and foliar spray with fungicides in controlling black point incidence of wheat seeds was evaluated in the field. Two seed treating fungicides, namely Vitavax-200 and Homai-80WP were used @ 0.25% of dry seed weight and foliar spray with Tilt-250EC (0.05%) was applied in six different schedules. Untreated and unsprayed controls were also maintained. Seed treatment with either Vitavax-200 or Homai-80WP significantly increased plant population and grain yield, but none of them was found effective in reducing black point incidence. On the other hand, foliar sprays with Tilt-250EC under all the spray schedules except spraying at 70 and 90 DAS significantly minimized the disease severity over unsprayed control. Among the different spray schedules, spraying at 30, 40, 50, 60, 70, 80, and 90 DAS appeared to be most effective, which was similar to spraying at 30, 45, 60, 75, and 90 DAS in reducing black point incidence and increasing grain yield. Economic analysis on yield advantage showed that the highest additional gross margin of Tk. 6120/ha with BCR 2.57 was obtained from five sprays applied at 30, 45, 60, 75, and 90 DAS. Key Words: Seed treatment, foliar spray, black point, wheat. DOI: 10.3329/bjar.v34i3.3968 Bangladesh J. Agril. Res. 34(3) : 425-434, September 2009

2018 ◽  
Vol 5 (2) ◽  
pp. 157-164
Author(s):  
Tahmina Aktar ◽  
Md Rashedur Rahman ◽  
Md Anwarul Abedin ◽  
AHM Jahangir Alam

Rice is the most extensively cultivated cereal crops in Bangladesh and nitrogenous fertilizer, especially urea is the most pressing fertilizer to supply nutrient in the paddy field. With this view, an experiment was conducted to evaluate the effect of deep placement and foliar application of urea fertilizer on BRRI dhan29 rice cultivar in boro season at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during December 2015 to May 2016. The experiment was laid out in a randomized complete block design considering twelve treatments with three replications. The treatments were- T0 ( No N application), T1 [140 kg N/ha (as prilled urea)], T2 (1.8 g 1-USG + 5 foliar spray @ 1% N solution), T3 (1.8 g 1-USG + 5foliar spray @ 1.5% N solution), T4 (1.8 g 1-USG + 5 foliar spray @ 2% N solution), T5 (1.8 g 2-USG), T6 (2.7 g 1-USG), T7 (2.7 g 1-USG + 3 foliar spray @ 1% N solution), T8 (2.7 g 1-USG + 3 foliar spray @ 1.5% N solution), T9 (2.7 g 1-USG + 3 foliar spray @ 2% N solution), T10 (1.8 g 2-USG + 3 t/ha cowdung), T11 (2.7 g 1-USG + 3 t/ha cowdung). Results showed that the grain and straw yield of the rice variety responded significantly to the application of prilled urea (PU), deep placement of USG and foliar application of N. The highest grain yield (4.8 t/ha) was recorded in T8 which was identical to the yield (4.7 t/ha) obtained in T3. The highest straw yield (6.0 t/ha) was found in T5. The lowest grain yield (3.7 t/ha) and straw yield (4.5 t/ha) were found in T0. Considering the economic efficiency, the treatment T8 showed the maximum gross margin and marginal gross margin with lowest cost per unit of product. Therefore, to get highest grain yield (4.8 t/ha), 82 kg N/ha as USG and 3 foliar spray of N @1.5% concentration i.e. total 219 Kg urea/ha can be applied to the rice field of BRRI dhan29. This will save an amount of 81 Kg urea per rice growing season per hectare.Res. Agric., Livest. Fish.5(2): 157-164, August 2018


1971 ◽  
Vol 7 (2) ◽  
pp. 157-160 ◽  
Author(s):  
D. K. Das Gupta

SUMMARYIn upland rice, seed soaked in CCC for 24 hours before sowing or sprayed with CCC 10, 21, 42 and 63 days after sowing, showed severe lodging. Effects of CCC on the number of paniclebearing tillers, number of good grains in 1000 grains, weight of 100 good grains and grain yield were not significant. On the other hand CCC prevented lodging in swamp rice, with the lowest percentage when foliar spray was given 21 days after transplanting. CCC failed to increase the number of panicle-bearing tillers and grain yield in swamp rice.


Author(s):  
Nagat G. Abdallah ◽  
S. R. Nagib ◽  
Hoda E. A. Ibrahim

A field experiments were conducted at Mallawy Agric. station, (latitude of 28 N, longitude of 30 E and altitude of 49 m above sea level), El-Minia Governorate, Egypt, during two successive growing seasons (2019 /2020) to study the effect of different concentrations of potassium silicate (P.Si), 0,3,6 and 9cm3/L foliar spray, under four soyabean genotypes, i.e. Giza 111, Giza22, Line3(H3L119 selected from Giza82) and Line7(H4L130 selected from Giza83) on yield ,its attributes and seed chemical analysis as well as pod warm infestation. The results indicated that, in both seasons foliar spraying of potassium silicate had highly significant effect on all studied character except seed index (S.I.). The concentration (6 cm3/L.) gave the highest values of seed yield (S.Y./F.) at 31.8 and 31.2% in the two seasons, respectively, as compared to control, as well as decreased the pod worm infestation (P.W.%) by 64.85% average both seasons. In the other hand Giza 22 surpassed the other genotypes regarding most characters, also the interaction between potassium silicate and soyabean genotypes had significant effect for all studied traits in both seasons, except seed weight/plant(S.W.) in the first season, the best values for all traits were obtained by foliar spraying of potassium silicate(6 cm3/L.) with Giza 22, furthermore the interaction ships among seed yield and its attributes through simple correlation( r) and regression(b) analysis were evaluated. Regarding correlation coefficients the seed yield was positively and significantly correlated with number of seeds /plant (No.S/P), number of pods plant-1 (No.p/p), Seed weight/ plant and seed index A strong correlation of seed yield with these traits indicated that, simultaneous improvement of these traits is possible. These findings indicate that selection for each of number of seeds plant-1, number of pods plant-1, seed weight/ plant and 1000-seed weight would be accompanied by high yielding ability under such conditions. Also, the seed yield was positively and significantly correlated with quantity traits Protein percent, oil percent, chlorophyl a (chl,a) + b (chl,b) and carotin(crt.), using silicon may be involved in cell elongation and/or cell division. negative and significant correlations were observed between seed yield (ton/fed.) and each of Infestation pods (P.W.%) and seeds (S.W.%) with pod worm percent. Decrease in these traits will ultimately Increase the seed yield. Regression procedure indicated that 6cm3/L. of potassium silicate gave the highest yield and yield components and reduce the pod worm infestation.


2016 ◽  
Vol 20 (1) ◽  
pp. 33-43
Author(s):  
AKMS Islam ◽  
MA Rahman ◽  
ABMZ Rahman ◽  
M Rahman ◽  
YJ Kim

Tegra practice (healthy seedling, mechanical transplanting, herbicide application and advisory services), as a new concept in commercial rice cultivation, needs to be evaluated with farmer’s practices in our country. This study was conducted in the farmers’ field during Aman 2013 and Boro 2013-14 seasons in Bogra district. In each season, six farmers within one kilometer radius were selected to conduct this study. Randomized complete block design (RCBD) with two treatments namely farmer’s practices (FP) and Tegra practices (TP) were used in the experiment. Self-propelled four rows walking-type rice transplanter was used to transplant seedling in TP. Seedlings were raised in plastic tray to use in mechanical transplanter. The mat seedlings were ready to transplant when attained 3-4 leaves and 10-12 cm height. Mechanical transplanting found faster than manual transplanting. Missing/floating hill observed insignificant in mechanically transplanted field. Fuel consumption of mechanical transplanter obtained 4.5 L/ha. Tender aged seedling was used in TP and seedling age was higher in FP than TP. Plant height followed the similar trend in both the practices. Tillering ability obtained the highest in TP than FP. TP produced significantly higher (14-23%) grain yield in both seasons. The total cost of production, gross return, gross margin and BCR obtained the highest in TP. BCR showed 5-13% higher in TP than FP in both the seasons due to higher grain and straw yield. The economic analysis clearly revealed the profitability of TP over FP in both the seasons.Bangladesh Rice j. 2016, 20(1): 33-43


2019 ◽  
Vol 8 (2) ◽  
pp. 58-62
Author(s):  
Helmi Helmi

The objectives of this study is to analysis the affectivities and rate of efficiencies of using organic fertilizer in rice cultivation. The research treatment was implemented atlowland rice ofMali Guyui village, Subdistrict of Sakti, Pidie District Province of Aceh. Study started in May to September 2018 had executed at irrigation rice field farm property of farmer with the treatment formation: (1) Manure, (2) Straw compost and (3) Treatment of farmer. The result of study showed that the highest grain yield was obtained at higher straw compost treatment of 800 kg/ha (11.11%) compared with the pattern of the farmers, and 640 kg/ha (8.69%) compared with manure treatment. The result of economic analysis showed that the level of benefits obtained by treatment of hay is higher IDR 580,600,- (7.42%) compared with the treatment of farmers with their conventional manures and the application of hay also bring the higher benefits IDR 1,582,480,- (23.19%) compared with chemical manure treatment. Key words :Rice, organic fertilizer, economic benefit


Author(s):  
V. Yamini ◽  
A.S. Anilkumar

Background: Blackgram (Vigna mungo L.) is an important short duration crop and is grown throughout the country. Seed treatment can improve seedling establishment and better crop stand; it also improves plants ability to tolerate stress at early growth stages and foliar application has the advantage of quick and efficient utilization of nutrients, elimination of nutrient losses through leaching and fixation in soil and also helps in regulating the uptake of nutrients by plants thus improving productivity. Methods: A field experiment was conducted during rabi 2018 at the Instructional Farm, College of Agriculture, Vellayani, Thiruvananthapuram to assess the effect of different levels of seed treatments and nutrient schedule on the growth and yield of blackgram. The growth attributes, yield attributes and yield viz., number of pods per plant, seeds per pod, length of pod, 100 seed weight, grain yield, haulm yield and harvest index were favorably influenced by the treatments. Result: Seed treatment with borax @ 1 g kg-1 seed and sodium molybdate @ 1 g kg-1 seed were observed superior in increasing plant height (135.84 cm), number of trifoliate leaves per plant (7.61), pods per plant (24.16), length of pod (5.23 cm), 100 seed weight (6.74 g), grain yield (1005 kg ha-1) and harvest index (0.38). Significantly higher nodule number (41.83), effective nodule number (33.83) and weight of nodules (58.83 mg) plant-1 at flowering were documented with sodium molybdate @ 1 g kg-1 seed. In case of seeds per pod significantly higher number of pods per plant (7.33) was observed with borax @ 2 g kg-1 seed and maximum haulm yield (1854 kg ha-1) reported with sodium molybdate @ 1 g kg-1 seed. The basal application of ½ N + full P + ½ K followed by ½ N and ½ K as foliar spray of 13:0:45 at 15, 30, 45 and 60 DAS produced significantly more 100 seed weight (6.52 g), grain yield (872 kg ha-1) and haulm yield (1750 kg ha-1). Interaction effect of boron and molybdenum also showed significant influence with respect to yield attributes and yield.


2020 ◽  
Vol 2 (2) ◽  
pp. 49-55
Author(s):  
Elizabeth Aquino-Duran ◽  

The objective of the present work was to evaluate the effectiveness of the Efficient Microorganisms (EM) the yield of the cultivation of broad beans (Vicia faba) Variety. In a DBCA with 4 blocks and 4 treatments, with a total population of 1440 plants, 90 plants for each experimental plot, 15 plants per sample. The ANDEVA and the DUNCAN test were used at the 5% level of significance. The results T2 (1 ½ L ME / 20 L. Water), per experimental net area was 8,150 kg / green pod plot whose estimated value is 13 583 kg / ha; that is, 13.58 t / ha. Regarding the green grain yield with the T2 dose (1 ½ L ME / 20 L. Water), per experimental net area was 3.812 kg / plot whose estimated value is 6350 kg / ha, that is, 6.35 t / he has; statistically surpassing the other treatments and the control. In the number and weight of pods / plant, T2 registers averages of 42.90 pods and 627.17 g respectively; Similarly, for the number and weight of grains / plant, T2 occupies the first place with 67.04 grains and 257.94 g; in both treatments T3 and T1 with 238.83 g and 236 g. Key words: EM 1, bacteria, fungi, yeasts, actinomycetes


2013 ◽  
Vol 38 (1) ◽  
pp. 61-70 ◽  
Author(s):  
SMA Hossain ◽  
MA Baque ◽  
MR Amin

The Imidacloprid insecticide, Gaucho 70 WS at 1.5, 2.5, 3.5, 4.5 and 5.5 g/kg seed was used as seed treatment and monocrotophos 40 WSC at 1120 ml/ha was applied as foliar spray on CB9 cotton cultivar to suppress aphid, whitefly and thrips, and impact on their natural enemies during 2008-2011 at the Regional Cotton Research Station, Dinajpur, Bangladesh. The activity of natural enemies, such as ladybird beetle, lacewing, syrphid, and spider population on the sucking pests attacking cotton cultivar CB9 and yield of cotton were recorded. Imidacloprid significantly reduced aphid, whitefly, and thrips population on cotton crops compared to untreated control or foliar spray of monocrotophos 40 WSC at 1120 ml/ha. Ladybird beetles, lacewings, syrphids, and spiders were abundant in the field but their population decreased in the treated plots compared to untreated control. The CB9 cotton cultivar produced significantly higher yield (1.73 t/ha) with a benefit cost ratio 12.47 when seeds were treated with Imidacloprid at 5.5 g/kg fuzzy seed. This study indicated that Imidacloprid (Gaucho 70 WS) used as a seed treatment may be suggested to the cotton growers for controlling sucking pests. Bangladesh J. Agril. Res. 38(1): 61-70, March 2013 DOI: http://dx.doi.org/10.3329/bjar.v38i1.15190


2020 ◽  
Vol 23 (1) ◽  
pp. 47-58
Author(s):  
SS Tanu ◽  
P Biswas ◽  
S Ahmed ◽  
SC Samanta

A field experiment was conducted at Agronomy Field Laboratory, Patuakhali Science and Technology University, Dumki, Patuakhali from July 2018 to November 2018 to evaluate the effect of sunflower residues and herbicides on the yield and economic performance of transplanted Aman rice. Weed control methods tested were T1 = weedy check (Unweeded control), T2 = Weed-free check by hand weeding twice, T3 = Pendimethalin, T4 = Pretilachlor, T5 = Butachlor, T6 = Pyrazosulfuron ethyl, T7 = Bensulfuron methyl + Acetachlor, T8 = Bispyriback sodium, T9 = 2,4-D amine, T10 = MCPA, T11 = Sunflower residues, T12 = Sunflower residues + 100% Pyrazosulfuron ethyl, T13 = Sunflower residues + 75% Pyrazosulfuron ethyl, T14 = Sunflower residues + 50% Pyrazosulfuron ethyl. The experiment was laid out in a randomized complete block design with fourteen treatments replicated thrice. Weedy check registered significantly the highest total weed density (354.67 m-2) and total weed dry matter (51.81 g-2) while weed-free treatment by hand weeding twice recorded significantly the lowest total weed density (6.67 m-2) and total weed dry matter 0.49 g-2) . Weedy check produced the highest weed index (34.24%) and hand weeding produced the lowest. Among different herbicides applied alone, butachlor had the lowest total weed density (15 m-2) and total weed dry matter (6.43 g-2) after hand weeding. Hand weeding recorded the highest grain yield (5.14 t ha-1) which was statistically similar to pendimethalin, pretilachlor, butachlor, bensulfuron methyl + acetachlor and sunflower residues + 100% pyrazosulfuron ethyl. Higher grain yield was attributed to a higher number of panicle m-2, number of filled grains panicle-1 and 1000-grain weight. The highest gross margin (22955 Tk. ha-1) and benefit-cost ratio (1.32) were obtained from butachlor. Integration of sunflower residues with pyrazosulfuron ethyl produced effective weed suppression and satisfactory yield comparable to butachlor. Although the integration is less profitable than butachlor the farmers can use this technology as a feasible and environmentally sound approach in transplanted Aman rice field. Bangladesh Agron. J. 2020, 23(1): 47-58


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