Effect of Water and Weed Management in Boro Rice (cv. BRRI dhan28) in Bangladesh

Sarkar, M. A. R.; Paul, SK; Paul, U.

doi:10.26832/24566632.2017.020414

Cited by 9 publications

(7 citation statements)

References 7 publications

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“…This may be due to the high efficiency of herbicide application under irrigation every 3 and 6 days to reduced weed competition, weakness its growth consequently allowed to good growth for rice plants that lead to increasing yield and its attributes. Similar results were reported by Sarkar et al (2017).…”

Section: Effect Of the Interaction Among Irrigationsupporting

confidence: 92%

The Mutual Effect of Irrigation Intervals and Weed Control for Enhancing Yield and Productivity of Irrigation Water for Two Rice Cultivars

El-Ghandor¹

2020

Journal of Plant Production Sciences

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Two field experiments were conducted through 2018 and 2019 summer growing seasons at Sakha Agricultural Research Station, Kafrelsheikh, Egypt to study effect of irrigation intervals and weed control for maximizing yield and productivity of irrigation water on Sakha 107 and Giza 179 rice cultivars. A strip split-plot experimental design, with three replications was used in both seasons. Three irrigation intervals i.e; irrigation every three days, every six days and every nine days were assigned in horizontal plots. Two rice cultivars viz; Sakha 107 and Giza 179 were randomly distributed in vertical plots. Six weed control treatments i.e., Saturn 50% EC (thiobencarb), Ronstar 25% EC (oxadiazon), Saturn followed by (fb) Granite 24% SC (penoxsulam), Ronstar fb Granite, hand weeding and weedy check were allocated in the sub-plots. The results of both seasons showed that, irrigation every 3-days recorded the lowest dry weights of E crus-galli and total weeds while, irrigation every 9-days recorded the lowest dry weights of A. baccifera and C. difformis. The highest rice dry weight, number of panicle m-2 , number of filled grain panicle-1 , panicle weight and rice grain yield were recorded by irrigation every 3-days as compared to 6 and 9 days. Rice cultivar Giza 179 exceeded Sakha 107, it recorded the lowest dry weights of A. baccifera, E crus-galli and total weeds in addition, increased number of panicle m-2 , number of filled grain panicle-1 and rice grain yield while, the highest panicle weight was recorded by Sakha 107. Application of Ronstar fb Granite at recommended doses achieved the best weed management, the highest weed control efficiency (%), rice grain yield and its attributes as well as productivity of irrigation water (PIW) compared to other treatments. The amount of irrigation water applied was decreased by 15% and 31% for six and nine days compared to three days, while productivity of irrigation water was taken the descending order six > three > nine days. To achieve the best weed control efficiency (%), yield and its attributes as well as save irrigation water and promote PIW, it could be apply irrigation every 6-days with Giza 179 cv treated by Ronstar fb Granite at recommended doses. But in case of water shortage, it could be apply irrigation every 9days with Sakha 107 cv treated by Ronstar fb Granite at recommended doses.

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Section: Effect Of the Interaction Among Irrigationsupporting

confidence: 92%

The Mutual Effect of Irrigation Intervals and Weed Control for Enhancing Yield and Productivity of Irrigation Water for Two Rice Cultivars

El-Ghandor¹

2020

Journal of Plant Production Sciences

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“…The tallest plant (98.33 cm) was recorded in T 2 (standing water 10 cm) which was statistically identical with T 1 (standing water 5 cm) followed by T 4 (20 cm) and T 5 (standing water 25 cm) and the lowest one (96.00 cm) was recorded in T 3 (standing water 15 cm). This result was in conformity with Sarkar et al (2017) who noticed that water management in rice influenced on plant height. The highest number of panicles hill -1 (23.33) was recorded in T 2 (standing water 10 cm) which was at par with T 1 (standing water 5 cm), T 3 (standing water 15 cm) and T 4 (standing water 20 cm) while the lowest number of panicles hill -1 was obtained in T 5…”

Section: Effect Of Standing Water Level On Crop Characters Yield Comsupporting

confidence: 92%

Effect of standing water levels on methane gas emission and yield performance of transplanted Aman rice (Oryza sativa L. cv. BRRI dhan51)

Paul¹,

Ali²,

Saha³

et al. 2020

Arch. Agric. Environ. Sci.

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An experiment was conducted to investigate the effect of standing water levels on methane gas emission and yield of transplanted Aman rice (cv. BRRI dhan51) during July to December 2015 at medium low-lying area of Mohangonj upazila under Netrokona district. The experiment comprised five standing water levels on surface paddy soil viz., 5 cm, 10 cm, 15 cm, 20 cm and 25 cm. Methane (CH4) gas emission, yield components and yield of transplanted Aman rice were significantly affected by standing water levels on surface paddy soil. CH4 emission was gradually increased with rising standing water levels and remained static condition at 20-25 cm water level. The highest CH4 emission was observed at 20 cm standing water level and the lowest CH4 emission was recorded at 5 cm water level. The highest CH4 peak recorded at 85 days after transplanting (DAT). The highest CH4 flux (36.59 mg/m2/h) was observed in treatment 20 cm water level whereas the lowest CH4flux (21.17 mg/m2/h) was observed in 5 cm water level. Finally, the CH4 emission dropped at 108 DAT. On and average, the CH4 emission rate during rice cultivation followed 20 cm > 25 cm> 15 cm > 10 cm > 5 cm water level. Soil Eh gradually decreased with progress of time and plant growth and at 85 DAT highly reduced condition developed in all treatments. The maximum reduced condition was observed (-238.67 mV) in treatment 20 cm water level and minimum one (- 214.667 mV) was found in 5 cm water level. The highest grain (5260 kg ha-1) and straw (6725.0 kg ha-1) yields were obtained at 10 cm standing water level while the lowest grain (4191.6 kg ha-1) and straw (5050.0 kg ha-1) yields were recorded in 5 cm and 15 cm water level, respectively. It may be concluded that 10 cm standing water level is beneficial for transplant Aman rice (cv. BRRI dhan51) cultivation in low lying area in respect of grain yield and environmental issues.

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“…Rice (Oryza sativa L.) is the most important food crop and a primary food source for more than one-third of world's population (Sarkar et al, 2017). World's rice demand is projected to increase by 25% from 2001 to 2025 to keep pace with population growth (Maclean et al, 2002), and therefore, meeting this ever increasing rice demand in a sustainable way with shrinking natural resources is a great challenge.…”

Section: Introductionmentioning

confidence: 99%

Effect of weed management on the growth and yield performances of boro rice cultivars

Salam¹,

Sarker²,

Sultana³

2020

JAFE

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An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from December 2017 through May 2018 to evaluate the effect of weed management practices on the performance of boro rice cultivars. The experiment consisted of three boro rice cultivars viz., BRRI dhan28, BRRI dhan29 and BRRI dhan74 along with six different weed management practices such as no weeding, application of preemergence herbicide Superhit, application of early post-emergence herbicide Changer, application of pre-emergence herbicide Superhit followed by one hand weeding at 40 DAT (days after transplanting), application of early postemergence herbicide Changer followed by one hand weeding at 40 DAT, and two hand weedings at 20 and 40 DATs. Cultivars had no significant effect on weed density at 20 and 40 DATs but showed significant effect at 60 DAT and weed dry weight was not significantly affected by cultivars at different DATs.Weeding regime had significant effect on weed density and dry weight at different DATs. The highest weed dry weight was observed in no weeding treatment and the lowest one was recorded in application of early postemergence herbicide followed by one hand weeding at 40 DAT. BRRI dhan29 with no weeding treatment produced the highest weed dry weight and BRRI dhan28 with application of early post-emergence herbicide followed by one hand weeding produced the lowest weed dry weight at different DATs. BRRI dhan74 produced the highest grain and straw yields among the studied cultivars. The highest grain yield was obtained from application of pre-emergence herbicide Superhit (Pretilachlor) followed by one hand weeding at 40 DAT due to the highest number of effective tillers hill -1 and highest number of grains panicle -1 in this treatment. Rice cultivar BRRI dhan29 with application of preemergence herbicide followed by one hand weeding at 40 DAT produced the highest grain yield and the lowest one was resulted from BRRI dhan29 in combination with no weeding treatment. From the economic analysis it is observed that cultivar BRRI dhan29 with application of pre-emergence herbicide followed by one hand weeding at 40 DAT maximized the BCR. So, for controlling weeds in effective manner and in order to get the highest grain yield and the highest economic return in boro rice, BRRI dhan29 with application of pre-emergence herbicide followed by one hand weeding at 40 DAT might be recommended.

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Effect of Water and Weed Management in Boro Rice (cv. BRRI dhan28) in Bangladesh

Cited by 9 publications

References 7 publications

The Mutual Effect of Irrigation Intervals and Weed Control for Enhancing Yield and Productivity of Irrigation Water for Two Rice Cultivars

The Mutual Effect of Irrigation Intervals and Weed Control for Enhancing Yield and Productivity of Irrigation Water for Two Rice Cultivars

Effect of standing water levels on methane gas emission and yield performance of transplanted Aman rice (Oryza sativa L. cv. BRRI dhan51)

Effect of weed management on the growth and yield performances of boro rice cultivars

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