Abstract
An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during January to June 2016 to observe the effect of water, nutrient and weed management practices on the yield and quality of aromatic Boro rice (cv. BRRI dhan50). The experiment consisted of three water managements viz. conventional flood irrigation, AWD (Alternate Wetting and Drying) and SRI (System of Rice Intensification); two nutrient managements viz. recommended dose of inorganic fertilizers (Urea, TSP, MoP, Gypsum, ZnSO4 @ 250, 120, 120, 100, 10 Kg ha-1, respectively) and 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1; and three weed managements viz. weedy check (control), two hand weeding at 20 and 40 DAT, and pre-emergence herbicide (Rifit 33EC) followed by post emergence herbicide (Fast klin 10WP) application. The highest number of effective tillers hill-1, grains panicle-1,grain yield and protein (%) in grain were obtained in SRI water management which was followed by AWD and conventional flood irrigation. Between the two nutrient management practices, application of 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1 produced higher number of effective tillers hill-1,grains panicle-1,1000-grain weight, grain yield and protein (%) in grain than in organic fertilizer. Among the weed management practices, application of pre-emergence herbicide (Rifit 33EC) followed by post-emergence herbicide (Fast Klin 10WP) produced the highest number of effective tillers hill-1,grains panicle-1,1000-grain weight, grain yield and protein (%) in grain followed by two weedings at 20 and 40 DAT while the lowest grain yield was obtained in weedy check. The highest number of effective tillers hill-1,grains panicle-1, grain yield and protein (%) in grain was found in SRI water management combined with 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1 and application of pre-emergence herbicide followed by post-emergence herbicide. So, it may be concluded that, to get the highest grain yield in aromatic Boro rice, SRI method along with application of 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1 and applying pre-emergence herbicide (Rifit 33EC) followed by post emergence herbicide (Fast Klin 10WP) could be recommended. Bangladesh Agron. J. 2019, 22(1): 57-69
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Claims 11
Claim · model-written summary
SRI gave the highest effective tillers, grains per panicle and grain yield, followed by AWD and flood irrigation.
- Taxon
- rice
Oryza sativat0 - Material
- BRRI dhan50t0
- Treatment
- SRI water managemente0
- Outcome
- number of effective tillers hill-1, grains panicle-1,grain yielde0
- Direction
- higheste0
- Comparator
- AWD and conventional flood irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest number of effective tillers hill-1, grains panicle-1,grain yield and protein (%) in grain were obtained in SRI water management which was followed by AWD and conventional flood irrigation”
t0“Aromatic Boro Rice (CV. BRRI dhan50)”
Claim · model-written summary
SRI produced the highest grain protein percentage, followed by AWD and flood irrigation.
- Taxon
- riceOryza sativat0
- Treatment
- SRI water managemente0
- Outcome
- protein (%) in graine0
- Direction
- higheste0
- Comparator
- AWD and conventional flood irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest number of effective tillers hill-1, grains panicle-1,grain yield and protein (%) in grain were obtained in SRI water management which was followed by AWD and conventional flood irrigation”
t0“Aromatic Boro Rice”
Claim · model-written summary
Reduced inorganic fertilizer plus poultry manure raised tillers, grains per panicle and thousand grain weight over inorganic fertilizer.
- Taxon
- riceOryza sativat0
- Treatment
- 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1e0
- Outcome
- number of effective tillers hill-1,grains panicle-1,1000-grain weighte0
- Direction
- highere0
- Comparator
- organic fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1 produced higher number of effective tillers hill-1,grains panicle-1,1000-grain weight, grain yield and protein (%) in grain than in organic fertilizer”
t0“Aromatic Boro Rice”
Claim · model-written summary
Reduced inorganic fertilizer plus poultry manure raised grain yield over inorganic fertilizer.
- Taxon
- riceOryza sativat0
- Treatment
- 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1e0
- Outcome
- grain yielde0
- Direction
- highere0
- Comparator
- organic fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1 produced higher number of effective tillers hill-1,grains panicle-1,1000-grain weight, grain yield and protein (%) in grain than in organic fertilizer”
t0“Aromatic Boro Rice”
Claim · model-written summary
Reduced inorganic fertilizer plus poultry manure raised grain protein percentage.
- Taxon
- riceOryza sativat0
- Treatment
- 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1e0
- Outcome
- protein (%) in graine0
- Direction
- highere0
- Comparator
- organic fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1 produced higher number of effective tillers hill-1,grains panicle-1,1000-grain weight, grain yield and protein (%) in grain than in organic fertilizer”
t0“Aromatic Boro Rice”
Claim · model-written summary
Sequential pre and post emergence herbicides gave the highest tillers, grains per panicle and thousand grain weight among weed management practices.
- Taxon
- riceOryza sativat0
- Treatment
- pre-emergence herbicide (Rifit 33EC) followed by post-emergence herbicide (Fast Klin 10WP)e0
- Outcome
- number of effective tillers hill-1,grains panicle-1,1000-grain weighte0
- Direction
- higheste0
- Comparator
- two weedings at 20 and 40 DATe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of pre-emergence herbicide (Rifit 33EC) followed by post-emergence herbicide (Fast Klin 10WP) produced the highest number of effective tillers hill-1,grains panicle-1,1000-grain weight, grain yield and protein (%) in grain followed by two weedings at 20 and 40 DAT”
t0“Aromatic Boro Rice”
Claim · model-written summary
Sequential herbicides gave the highest grain yield, while the weedy check gave the lowest.
- Taxon
- riceOryza sativat0
- Treatment
- weedy checke0
- Outcome
- grain yielde0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest grain yield was obtained in weedy check”
t0“Aromatic Boro Rice”
Claim · model-written summary
Sequential herbicides gave the highest grain protein percentage.
- Taxon
- riceOryza sativat0
- Treatment
- pre-emergence herbicide (Rifit 33EC) followed by post-emergence herbicide (Fast Klin 10WP)e0
- Outcome
- protein (%) in graine0
- Direction
- higheste0
- Comparator
- two weedings at 20 and 40 DATe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of pre-emergence herbicide (Rifit 33EC) followed by post-emergence herbicide (Fast Klin 10WP) produced the highest number of effective tillers hill-1,grains panicle-1,1000-grain weight, grain yield and protein (%) in grain followed by two weedings at 20 and 40 DAT”
t0“Aromatic Boro Rice”
Claim · model-written summary
SRI with reduced inorganic fertilizer, poultry manure and sequential herbicides gave the highest tillers, grains per panicle and grain yield.
- Taxon
- riceOryza sativat0
- Treatment
- SRI water management combined with 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1 and application of pre-emergence herbicide followed by post-emergence herbicidee0
- Outcome
- number of effective tillers hill-1,grains panicle-1, grain yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest number of effective tillers hill-1,grains panicle-1, grain yield and protein (%) in grain was found in SRI water management combined with 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1 and application of pre-emergence herbicide followed by post-emergence herbicide”
t0“Aromatic Boro Rice”
Claim · model-written summary
The combined SRI, fertilizer and herbicide regime gave the highest grain protein percentage.
- Taxon
- riceOryza sativat0
- Treatment
- SRI water management combined with 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1 and application of pre-emergence herbicide followed by post-emergence herbicidee0
- Outcome
- protein (%) in graine0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest number of effective tillers hill-1,grains panicle-1, grain yield and protein (%) in grain was found in SRI water management combined with 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1 and application of pre-emergence herbicide followed by post-emergence herbicide”
t0“Aromatic Boro Rice”
Claim · model-written summary
The authors recommend SRI, reduced inorganic fertilizer plus poultry manure, and sequential herbicides for highest grain yield.
Verbatim
e0“to get the highest grain yield in aromatic Boro rice, SRI method along with application of 25% less than recommended dose of inorganic fertilizer + poultry manure @ 2.5 t ha-1 and applying pre-emergence herbicide (Rifit 33EC) followed by post emergence herbicide (Fast Klin 10WP) could be recommended”
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