System Productivity of Rabi Vegetables and Aman Rice varieties in Rabi Vegetables-Mungbean-Aman Rice Cropping Pattern

2012 ◽  
Vol 10 (2) ◽  
pp. 120-126
Author(s):  
S Mondal ◽  
MIU Mollah ◽  
MH Rashid ◽  
S Pramanik ◽  
MR Dewan
Keyword(s):  
Field Experiments ◽  
Silty Clay ◽  
Cropping Pattern ◽  
Rice Varieties ◽  
System Productivity ◽  
Cropping Patterns ◽  
Economic Productivity ◽  
Bush Bean ◽  
Winter Vegetables ◽  
Loam Soil

Field experiments were conducted during 2007-2010 to evaluate the agro-economic productivity of BRRI Aman rice varieties and Rabi vegetables at the Bangladesh Rice Research Institute (BRRI) in silty clay loam soil. Five Aman rice varieties having different growth durations and three winter vegetables viz., tomato, red amaranth and bush bean were evaluated in split plot design with three replications. Mungbean was grown in Kharif-I season. Rice varieties did not differ significantly in terms of grain yield (t ha-1). Among the three vegetables, the yields of tomato, red amaranth and bush bean were 35.02, 7.53 and 4.33 t ha-1, respectively. Average yield of Mungbean was 0.89 t ha-1. In case of rice equivalent yield (REY), Tomato-Mungbean-BRRI dhan33 cropping pattern produced comparatively high average REY (29.95 t ha-1) followed by Tomato-Mungbean-BRRI dhan39 (27.33 t ha-1) cropping pattern. Among the tested cropping patterns, Tomato-Mungbean-BRRI dhan33 and Tomato-Mungbean-BRRI dhan39 were more profitable than other patterns. DOI: http://dx.doi.org/10.3329/agric.v10i2.13149 The Agriculturists 2012; 10(2) 120-126

scholarly journals Double Transplanting of Boro Rice Increased System Productivity of T. Aman-Potato-Boro Cropping Pattern

2010 ◽  
pp. 86-94
Author(s):  
Amina Khatun ◽  
AH Khan ◽  
MA Saleque
Keyword(s):  
Yield Loss ◽  
Cropping Pattern ◽  
Minimum Level ◽  
Gross Margin ◽  
Rice Varieties ◽  
System Productivity ◽  
Cropping Patterns ◽  
Asian Rice ◽  
Boro Rice ◽  
Similar Yield

Under irrigated condition, double transplanting (DT) of Boro rice in a T. Aman-Potato-Boro cropping pattern may be an alternative option either to reduce the yield loss of late planted Boro rice or to keep it at a minimum level. An experiment was conducted during 2003 - 2006 at Gazipur and Kapasia with three cropping patterns. The patterns were: T. Aman- Boro- Fallow (CP1), T. Aman-Potato- Boro (CP2) and T. Aman- Potato- double transplanted (DT) Boro (CP3). Rice varieties were BRRI dhan44 and BRRI dhan29 for Aman and Boro seasons, respectively; while Diamont was the potato variety. Rice equivalent yields (REY) in CP2 and CP3 were 82 and 109% higher than that in CP1 at Gazipur, whereas those were 122 and 179% higher at Kapasia. The increase of REY in CP2 was attributed to higher potato yield and that in CP3 was due to higher yield of potato and Boro rice. Double transplanting of Boro in CP3 facilitated greater yield of potato and realized almost similar yield of Boro that was obtained in CP1. Economic analysis showed that the gross margin was the highest in CP3 (US$ 1797 and 2720 at Gazipur and Kapasia, respectively). CP3 may be recommended for medium high lands of Bangladesh and other Asian rice growing countries.

Trace element uptake by two British Columbia forages as affected by poultry manure application

1991 ◽  
Vol 71 (3) ◽  
pp. 305-312 ◽  
Author(s):  
A. A. Bomke ◽  
L. E. Lowe
Keyword(s):  
Dry Matter ◽  
Field Experiments ◽  
Clay Soil ◽  
Poultry Manure ◽  
Yield Response ◽  
Silty Clay ◽  
Manure Application ◽  
Deep Pit ◽  
Loam Soil ◽  
Trace Element Uptake

Field experiments evaluated yield response to deep-pit poultry manure application to barley on a clay soil near Prince George and a grass-legume forage on a silty clay loam soil near Chilliwack, B.C. Substantial dry matter yield increases were measured at manure applications up to 20 t ha−1. Subsamples of both crops and the poultry manure were analyzed for Cu, Zn, Mn, Ba, Pb, Ni, Cr, Cd, B and Co. Selenium analyses were made on selected crop samples. There were no indications of toxicity problems even at 40 t ha−1, the highest application. Copper and Zn concentrations in forages were increased by the poultry manure and the Mn/Cu ratio tended to decrease with manure application. Key words: Orchardgrass, ladino clover, barley, micronutrients

Protecting Cotton (Gossypium hirsutum) from Fluometuron Injury with Seed Protectants

Weed Science ◽  
1991 ◽  
Vol 39 (3) ◽  
pp. 408-411 ◽  
Author(s):  
Billy R. Corbin ◽  
Robert E. Frans
Keyword(s):  
Growth Regulators ◽  
Field Experiments ◽  
Clay Soil ◽  
Yield Reduction ◽  
Silty Clay ◽  
Silt Loam ◽  
Chlormequat Chloride ◽  
Mepiquat Chloride ◽  
Loam Soil ◽  
Silty Clay Soil

Field experiments were conducted in 1986 and 1987 to evaluate the potential of growth regulators mepiquat chloride and chlormequat chloride as seed treatments to protect cotton from fluometuron injury. Fluometuron at two and three times the recommended use rate reduced cotton stand and height on Taloka and Convent silt loam soils both years. Cotton grown on a Sharkey silty clay soil was not injured by fluometuron. Mepiquat chloride and chlormequat chloride increased cotton stands on a Taloka silt loam soil when averaged over rates and years. In general, fluometuron injury to cotton was not reduced by treating seed with 1000 ppmw concentrations of chlormequat chloride or mepiquat chloride. Chlormequat chloride reduced chlorosis and necrosis of cotton treated with fluometuron, but neither growth regulator eliminated cotton injury or yield reduction caused by fluometuron at two or three times the recommended rates.

scholarly journals Silage-corn harvesting machinery traffic effects on soil bulk density and water permeability

2013 ◽  
Vol 59 (No. 4) ◽  
pp. 136-140
Author(s):  
I. Ahmadi ◽  
H. Ghaur
Keyword(s):  
Bulk Density ◽  
Water Permeability ◽  
Soil Compaction ◽  
Field Experiments ◽  
Soil Bulk Density ◽  
Soil Sampling ◽  
Soil Porosity ◽  
Silty Clay ◽  
Water Permeability Coefficient ◽  
Loam Soil

Soil compaction caused by machinery traffic affects the growth of agricultural crops and also has environmental effects like soil damage and erosion. Field experiments were conducted to study the effects of repeated silage-corn harvesting machinery traffic on dry soil bulk density and porosity variations at three different sampling depths, moreover average water permeability coefficient of the examined silty clay loam soil was measured using the falling head method of water permeability test. The examined treatments which were applied while harvesting silage-corn with the combination of tractor, chopper and truck were the number of traffic passes and depths of soil sampling. Significant differences between soil compaction treatments were observed in bulk density and porosity of soil. Numerically, 22% increase in soil bulk density and 19% reduction in soil porosity were recorded due to the effect of two passes of the examined machineries over the field terrain comparing to the non-traffic treatment. Moreover; soil sampling at 0–10 cm and 20–30 cm depths resulted in the highest and the lowest soil porosity respectively.

scholarly journals Assessment of the Agronomic Performance of Two Varieties of Soybean as Influence by Time of Introduction of Maize and Cropping Pattern

2015 ◽  
Vol 31 ◽  
pp. 36-46
Author(s):  
M.M. Degri ◽  
Philip O. Osang ◽  
I.B. Richard
Keyword(s):  
Grain Yield ◽  
Field Experiments ◽  
Block Design ◽  
Cropping Pattern ◽  
Agronomic Performance ◽  
Soybean Variety ◽  
Land Equivalent Ratio ◽  
Cropping Patterns ◽  
Randomized Block Design ◽  
The University

Field experiments were conducted to assess the effect of time of introduction of maize and cropping pattern on two varieties of soybean in a soybean/maize intercrop in 2007 and 2008 seasons at the University of Agriculture Makurdi. Three periods of introduction of maize were evaluated: (i) planting at the same time with soybean;(ii) introduction of maize two weeks after planting soybean and (iii) introduction of maize four weeks after planting soybean. There were five cropping patterns viz: (i) soybean variety Samsoy-2 planted sole (ii) soybean variety TGX 1448-2E planted sole (iii) maize variety DMR-ESR-Y planted sole (iv) Samsoy -2 intercrop with maize and (v) TGX1448-2E intercrop with maize. The experiment was a split plot laid on complete randomized block design replicated three times. Results obtained revealed that there was no significant effect of time of introduction of maize on any soybean parameter observed. Yield and yield components of soybean indicated significant effect of cropping pattern (P<0.01) with number of pods per plant and grain yield. Grain yield and number of pods per plant decreased in intercrop with soybean variety Samsoy-2 having the highest number of pods per plant and grain yield. The result on maize indicated that maize planted sole was significantly (P<0.01) taller than intercropped maize, there was significant (P<0.01) effect of time of introduction of maize and cropping pattern on maize plant height, ear length, ear diameter, survival and barrenness percentage and grain yield. The Land Equivalent ratio (LER) values indicated that higher yield advantages were obtained from maize introduced two weeks after planting soybean and maize intercropped with soybean variety Samsoy-2 (1.35) than with soybean variety TGX1448-2E (1.12).

scholarly journals Millet-Jute-T. Aman Cropping Pattern for Increasing System Productivity in the Active Brahmaputra-Jamuna Floodplain Chars

2020 ◽  
Vol 18 (1) ◽  
pp. 129-136
Author(s):  
AA Mahmud ◽  
M Jahangir Alam ◽  
MA Islam ◽  
MSH Molla ◽  
MA Ali
Keyword(s):  
Production Efficiency ◽  
Cropping System ◽  
Turnaround Time ◽  
Cost Ratio ◽  
Cropping Pattern ◽  
Gross Margin ◽  
System Productivity ◽  
Cropping Patterns ◽  
Benefit Cost Ratio ◽  
Land Use Efficiency

Increasing system productivity in a planned way is an important base for attaining food security, where bringing marginal land like Charland under intensive crop cultivation is highly desirable. The field trial was conducted in the Charland of the Jamuna River under Saghataupazilla of Gaibandha during 2017- 18 & 2018-19 to increase the productivity and profitability through the development of three crops-based improved cropping patterns instead of the local practice (double-crop). Three crops based improved cropping pattern namely Millet (BARI Kaon-2)-Jute (O-9897)-T. Aman (Gainja) was compared with the existing cropping pattern of Millet (Local)-Fallow-T. Aman (Gainja). The experiment was laid out in six dispersed replications maintaining RCB design. The introduced improved cropping pattern produced the higher system productivity based on rice equivalent yield, REY (12.95 t ha-1), than the existing cropping pattern (4.20 t ha-1), which is three times higher than the existing pattern. Total field duration and turnaround time were 323 and 42 days, respectively in improved pattern and 215 and 150 days, respectively in the existing pattern, which revealed that 108 days more could be made productive through the introduction of improved cropping pattern. The alternate pattern increased production efficiency and land-use efficiency by 35% and 30%, respectively than that of the existing cropping system. The gross margin was also three times higher in the improved cropping pattern (1, 41,600 Tk ha-1 yr-1) compared to the farmers’ existing cropping pattern (38,350 Tk ha-1 yr-1). The marginal benefit-cost ratio (MBCR) was calculated 2.44 in an improved cropping pattern over the existing cropping pattern. The inclusion of an extra one crop (Jute) in the existing cropping pattern and replacement of the local millet variety by high yielding variety (BARI Kaon-2) could play a significant role to increase the system productivity as well as profitability in the Charland of Saghata, Gaibandha. The Agriculturists 2020; 18(1) 129-136

scholarly journals Influence of Nitrogen on Growth Performance of Hybrid and Inbred Rice (Oryza sativa L.) Varieties in Boro Season

2010 ◽  
pp. 77-85
Author(s):  
MS Islam ◽  
MSU Bhuiya
Keyword(s):  
Plant Height ◽  
Field Experiments ◽  
Silty Clay ◽  
Higher Plant ◽  
N Application ◽  
Area Index ◽  
Crop Growth Rate ◽  
Hybrid Variety ◽  
Loam Soil ◽  
N Management

Field experiments were conducted during boro season of 2002 and 2003 at the Bangladesh Rice Research Institute (BRRI) farm having silty clay loam soil. Hybrid variety Sonarbangla-1 and BRRI hybrid dhan1 and modern inbred variety BRRI dhan29 were used in the experiments. Zero to 160 kg N ha-1 with 40 kg interval and different application schedules, chlorophyll meter based (SPAD35) N application and urea supper granules (USG) @ 80 kg N ha-1 were used as N treatments. During boro 2002, BRRI hybrid dhan1 had 10-15% higher tiller number, leaf area index (LAI) and crop growth rate (CGR) than Sonarbangla-1 and BRRI dhan29. Among the N managements, N9 (USG), N5 (160 kg N ha-1 with basal), N6 (160 kg N ha-1 without basal), and N7 (SPAD based N application with basal) showed 10-15% higher plant height, tiller hill-1, LAI and CGR. During boro 2003, Sonarbangla-1 and BRRI hybrid dhan1 had 10-15% higher plant height, tiller hill-1, LAI and CGR compared to the BRRI dhan29. Among the N management, N9 (USG), N5, N6, N7, N3 (120 kg N ha-1 with basal) and N4 (120 kg N ha-1 without basal) treated plots performed better in terms of growth. The LAI and CGR were reduced by 20-25 % at 60 DAT during 2003 compared to 2002 due to cold and the growth of BRRI dhan29 was restricted much.

Rice (Oryza sativa) response to clomazone

Weed Science ◽  
1998 ◽  
Vol 46 (3) ◽  
pp. 374-380 ◽  
Author(s):  
David L. Jordan ◽  
Patrick K. Bollich ◽  
Ann B. Burns ◽  
Douglas M. Walker
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Field Experiments ◽  
Clay Soil ◽  
Clay Soils ◽  
Silty Clay ◽  
Silt Loam ◽  
Loam Soil ◽  
Silty Clay Soil ◽  
Additional Field

Experiments were conducted in 1993 and 1994 to determine if seed treated with disulfoton at 3, 6, or 12 g ai kg−1 reduced bleaching of rice foliage caused by clomazone applied delayed preemergence at 0.56, 1.1, 1.7, or 2.2 kg ai ha−1 on silt loam and silty clay soils. Clomazone injured rice more on silt loam soil than on silty clay soil. Disulfoton reduced bleaching caused by clomazone. In additional field experiments conducted during 1995 and 1996, clomazone at rates as high as 2.2 kg ha−1 did not affect grain yield in seven of 10 experiments. Clomazone at rates below 1.7 kg ha−1 did not reduce grain yield in any of the experiments.

scholarly journals Cropping Patterns in the South East Coastal Region of Bangladesh

1970 ◽  
Vol 4 (1) ◽  
pp. 53-60 ◽  
Author(s):  
SM Shahidullah ◽  
MSA Talukder ◽  
MS Kabir ◽  
AH Khan ◽  
Nur-E Elahi
Keyword(s):  
Coastal Area ◽  
Coastal Region ◽  
Structured Interview ◽  
Cropping Pattern ◽  
Rice Varieties ◽  
Cropping Intensity ◽  
Cropping Patterns ◽  
Sharp Variation ◽  
Rabi Crops ◽  
Potential Area

The study was conducted in greater Noakhali district to investigate the major cropping patterns during 2000–2001. Information was collected through a structured interview schedule. A total of 18 major cropping patterns were identified. Most dominant cropping pattern, single T. Aman alone occupied 35% land of net cropped area. The next three, Boro–Fallow–T. Aman, Fallow–B.Aus–T. Aman and single Boro represents 14, 11 and 11%, respectively of the net cropped area. A sharp variation was observed in cropping patterns among the different upazillas. Crop land of Noakhali, Companiganj, and Ramgati is mainly occupied by single T. Aman cropping pattern. Lion share of net cropped area in Feni, Chhagalnaiya, Parshuram and Raipur is covered by Boro–Fallow–T. Aman pattern. Begumganj and Chatkhil are an exception. More than 80% of the cropped area is in these two upazillas is cahracterized by single Boro cropping pattern. The average cropping intensity of the greater Noakhali district was 163%. The highest cropping intensity was 194% in Ramganj and the lowest 115 % was in Begumganj. The highest adoption rate of modern rice varieties was found in Boro–Fallow–T. Aman cropping pattern in all upazillas. The farmers need improved varieties of Aus, T. Aman and minor Rabi crops purposively suitable for coastal area. Researches in these fields should get priority. Single Boro area, especially of Begumganj and Chatkhil is the most potential area for fish culture after the harvest of Boro rice. Key words: Cropping patterns, cropping intensity, coastal area.

scholarly journals Crop sequences for increasing cropping intensity and productivity

2015 ◽  
Vol 13 (1) ◽  
pp. 135-147 ◽  
Author(s):  
RI Mondal ◽  
F Begum ◽  
A Aziz ◽  
SH Sharif
Keyword(s):  
Field Experiments ◽  
Agricultural Research ◽  
Research Station ◽  
Cropping Pattern ◽  
Central Research ◽  
Cropping Intensity ◽  
Cropping Patterns ◽  
Soil Enrichment ◽  
Equivalent Yield ◽  
Boro Rice

Field experiments were conducted at the Central Research Station of Bangladesh Agricultural Research Institute (BARI) for three consecutive years (2011-12, 2012-13 and 2013-14) to study the comparative agronomic performance and economic return of different cropping sequences for increasing cropping intensity and productivity. Three cropping patterns (CP1 - Transplanted Aman rice (var:Binadhan-7)– Mustard (var:BARISarisha-14)– Boro rice (var:BRRIdhan-28)– Transplanted Aus rice (var:Parija), CP2 - T. aman rice – Potato (var:Diamont) – Boro rice – T. aus rice and CP3 - T. aman rice – Mustard (var:BARISarisha-15) – Mungbean (var:BARIMung-6) –T. aus rice) are based on four crops; and one cropping pattern (CP4 = T. aman rice – Fallow – Boro rice – Fallow) with two rice crops as control were tested. Four crops can be grown successfully one after another in sequence in all the three cropping patterns tested. On an average organic matter 3.56, 4.70, 3.58 and 2 t ha-1 were added to soil in CP1, CP2, CP3 and CP4 by incorporation of biomass of respective crops. The highest rice equivalent yield (REY) 34.10, 34.02 and 33.36 t ha-1 was obtained from the cropping pattern CP2 in 2011-12, 2012-13 and 2013-14, respectively and it was followed by CP1 and CP3. The highest average gross return (Tk.5,00,469 ha-1) and net return (Tk. 2,63,773 ha-1) were obtained from CP2 and it was followed by CP3 but the highest average B:C ratio (2.89) was obtained from the cropping pattern CP3 followed by CP2 (2.11) due to lower cost of production than in the former one. Four crops based patterns can be recommended for higher productivity, soil enrichment & economic benefit besides creating more employment opportunity.SAARC J. Agri., 13(1): 135-147 (2015)

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