Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Study the Water Management for Four-crop Based Cropping Patterns in BARInd Area (2015--2016)

S. K. BISWAS
IWM Division, BARI, Gazipur

M. SAKHAWAT HOSSAIN
OFRD, Gazipur

ASM. M. R. KHAN
OFRD, Gazipur

A. R. AKANDA
IWM Division, BARI, Gazipur

Abstract/ Executive Summary:

Since this is a cropping pattern-based study, so it needs to complete 2-3 crop cycles of a particular cropping pattern to draw any conclusion. But it appears from one year study that the inclusion of non-rice rabi crops instead of boro rice can significantly reduce the irrigation requirements in the dry season and increase the rice equivalent yield (REY) without having any effect on the farm's income. The study was initiated during the rabi season of 2015-2016 in the Barind area of Rajshahi. The soil of the study area is loam - clay loam with an average field water-holding capacity of 29.5 % and wilting point of 14.5%. Soil bulk density in the 0 to 60 cm depth ranges from 1.31 to 1.43 g/cc, with a weighted average of 1.39 g/cc. A typical dry climate with comparatively high temperature prevails in the Barind area. Temperature ranges from a minimum of 8^oC in the winter to a maximum of 44^oC in the summer. More than 85% of the total rainfall occurs from mid-June to October and the magnitude of annual rainfall varies from 1500 mm to 2000 mm. Five different cropping patterns with seven principal crops of that region were selected as rotation crops, including T.Aman, boro, mungbean, wheat, mustard, potato, and chickpea. This study, therefore, was conducted to find out effective water management practices for four-crop-based cropping patterns which will enhance the sustainability of crop production with limited water resources in the Barind area.

Keywords: Barind area, Cropping pattern, Potato, Mung, T.Aman,

Location: Barind area of Rajshahi.

Start Date: 00-00-2015

End Date: 00-00-2016

Program Area: Crop-Soil-Water Management

Commodity: Water management, Cropping pattern

Objectives:

This study, therefore, was conducted to find out effective water management practices for four-crop-based cropping patterns which will enhance the sustainability of crop production with limited water resources in Barind area.

Methodology:

The study was initiated during the rabi season of 2015-2016 in the Barind area of Rajshahi. The soil of the study area is loam - clay loam with an average field water-holding capacity of 29.5 % and wilting point of 14.5%. Soil bulk density in the 0 to 60 cm depth ranges from 1.31 to 1.43 g/cc, with a weighted average of 1.39 g/cc. A typical dry climate with comparatively high temperature prevails in the Barind area. Temperature ranges from a minimum of 8^oC in the winter to a maximum of 44^oC in the summer. More than 85% of the total rainfall occurs from mid-June to October and the magnitude of annual rainfall varies from 1500 mm to 2000 mm. Five different cropping patterns with seven principal crops of that region were selected as rotation crops, including T.Aman, boro, mungbean, wheat, mustard, potato, and chickpea. Mungbean, a popular fallow crop, was included in three cropping patterns. The irrigation schedule of different crops with their sowing/transplanting and harvesting date are recorded. All crops were grown in the following sequences starting with rabi crops as Mustard-Mung-T.Aus-T.Aman, Potato-Mung-T.Aus-T.Aman, Tomato-Boro-Fallow-T.Aus and Wheat-Fallow-T.Aus. Another pattern Boro-Fallow-T.Aman was tested as a control treatment. irrigation with effective utilization of profile soil moisture. Each crop was grown on a 5 m x 4 m plot with three replications. The growing period for the wheat crop was Nov-March, for potato Nov-February, for mustard Oct/Nov-January, and for boro rice December-April. At maturity, all crops were harvested manually to determine grain yield and aboveground biomass. Soil water content was monitored at 15 cm incremental depth to 60 cm depth for wheat and mustard, and to 45 cm depth for potato before and after irrigation. The soil moisture content at sowing and at harvest was monitored to find out the amount of profile soil moisture contributing to crops. Boro rice was transplanted after harvesting tomato in January and harvested in April. Water-saving AWD technology was used for irrigation scheduling of boro rice. Water-use efficiency (WUE), expressed as grain yield or biomass production per unit ET was calculated for each crop. Data on the yield of each crop was recorded and statistically analyzed using MSTATC programme and treatment means were compared by DMRT at 0.05 probability.

Source of Information: Annual Research Report 2015--2016, Irrigation and Water Management Division, BARI, Joydebpur, Gazipur

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It is seen that irrigation had significant effects on the yield of rabi crops wheat, mustard, and potato. The yield of mustard differed significantly when the number of irrigation increased from one to three. But it showed an insignificant yield variation when yields under two and three irrigations were compared. Similarly, the yield of wheat increased greatly when two irrigations were applied but the yield increased minimally when a total of three irrigations were applied compared to one time irrigated treatment. The highest yield of wheat was obtained from treatment T₄ that received three irrigations at CRI, booting, and flowering stages, non-significantly followed by treatment T₃ received two irrigations at CRI and booting stages. Though both the treatments, T₁ (farmers' practice) and T₃ received two irrigations, a variation in yield was observed due to the difference in timing of irrigation. A reasonably good yield, though the lowest, was obtained from treatment T₁ that received irrigation only at the CRI stage. In the case of mustard, yield variation was insignificant between treatments T₂ (irrigation at the pre-flowering stage) and T₃ (pod-formation stage). A significantly higher yield of 1.39 t/ha was obtained from treatment T₄that received two irrigation at pre-flowering and pod formation stages. This yield was slightly higher compared to farmers' practice treatment, T₁that received two irrigations but with different times of application. Like wheat, irrigation only at the vegetative stage gave a reasonably good yield. Though two irrigations at pre-flowering and pod formation stages produced the highest yield (1.39 t/ha), it was insignificant compared to one irrigation either at the vegetative stage or at the flowering stage (1.11 and 1.13 t/ha). It implies that mustard is not as responsive to irrigation as wheat. The tuber yield of potato was influenced significantly by the number and timing of irrigation. Though both treatments T₁ and T₂ received two irrigations, yield variation was observed between them due to variation in timing. The lowest yield (18.94 t/ha) produced by the treatment T₂ received irrigation at stolonization and tuberization stages. While a slightly higher yield of 20.19 t/ha was obtained from treatment T₃ when irrigation was applied at stolonization and bulking stages. This indicated that bulking stage is more responsive to irrigation than tuberization stage. The yield of tomato was significantly influenced by the different irrigation treatments. The highest fruit yields of 52.29 t/ha were obtained from the treatment T₂ which received drip irrigation at 3 days intervals. This was at par with the yield that obtained under traditional furrow irrigation (T₄) at 10 days interval. Alternate furrow irrigation at 10 days intervals produced a slightly lower yield than traditional furrow irrigation with a greater saving (about 35%) of irrigation water. Drip fertigation not only produced the highest yield but also offered a greater saving of water (45%) and fertilizer. However, the lowest yield of 40.01 t/ha was obtained under farmers' practice (control) treatment. Since this is a cropping pattern-based study, so it needs to complete 2-3 crop cycles of a particular cropping pattern to draw any conclusion. But it appears from one year study that the inclusion of non-rice rabi crops instead of boro rice can significantly reduce the irrigation requirements in the dry season and increase the rice equivalent yield (REY) without having any effect on the farm's income.

Knowledge Management: Report/Proceedings