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Effect of Unpuddled Transplanting on Crop Growth and Yield of Boro Rice in High BARInd Bract

AKM Saiful Islam
Senior Scientific Officer
Farm Machinery and Postharvest Technology Division, Bangladesh Rice Research Institute, Gazipur-1701.

Dr. Md. Abu Saleque
Principal Scientific Officer
Soil Science Division, Bangladesh Rice Research Institute, Gazipur-1701.

Dr. Md. Mosharraf Hossain
Professor
Department of Farm Power and Machinery, Bangladesh Agricultural University, Mymensiingh-2202.

Abstract/ Executive Summary:

Tillage options in puddled condition (i) CT and (ii) SPWT and in unpuddled condition (iii) ST and (iv) BP were evaluated to establish rice in the High Barind Tract, Godagari, Rajshahi during Boro (2011) season. CT provided higher cost compared to other tillage treatment due to more fuel and labour used in land preparation. Minimum tillage (SPWT, ST and BP) saved about 30-54% fuel consumption among the tillage treatments in land preparation compared to CT. CT showed the highest labour requirement (45 man-hr ha-1) and ST showed the lowest labour requirement (23 man-hr ha-1) in land preparation. Minimum tillage saved (41-49%) labour compared to CT in land preparation. Labour did not face difficulties to transplant seedling in unpuddled field. Weeding time was higher in unpuddled than puddled transplanting. The present findings showed that grain yield in minimum tillage puddled and unpuddled transplanting of rice was similar to CT indicating that tillage intensity can be reduced to establish transplanted rice without sacrificing yield. Transplanting rice in minimum tillage puddled SPWT and unpuddled ST and BP was more profitable than transplanting rice in puddled field under CT.

Keywords: Rice, Puddled, Unpuddled, Strip tillage, Bed planting, Yield, Economic productivity

Location: Godagari, Rajshahi

Start Date: 01-01-2010

End Date: 30-06-2011

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To explore the possibility of avoiding field puddling through unpuddled rice transplanting under minimum tillage options in Boro season

Methodology:

The treatments were in puddled condition (i) Conventional puddling (CT); (ii) Single pass wet tillage (SPWT); and in unpuddled condition (iii) Strip tillage (ST) and; (iv) Bed planting (BP). The treatments were arranged in a randomized complete block (RCB) design with three replications. In land preparation, CT consisted of 2 passes primary tillage by 2 WT and exposed to sun for two days followed by inundating whole plot and puddling by 2WT with 2 passes to complete land preparation. In SPWT, one pass tillage by 2 WT after inundating the field. ST and BP were done by Versatile Multi-crop Planter (VMP) in single pass operation before inundating the field. Land was inundated one day before transplanting operation for making the land soft to transplant seedling in ST, BP and SPWT. In BP, the width of bed and furrow were 35 cm and 20 cm, respectively. HYV BRRI dhan28 was sown on 26 January 2011. The entire amount of triple super phosphate, muriate of potash, gypsum and zinc sulphate were broadcasted and incorporated into the soil at final land preparation. Urea was top dressed in three equal installments. Grain yield was recorded from pre-selected 10 m2 area and was adjusted to 14% moisture content. A simple economic analysis was done based on total production. Production cost included rental charge of the land and input cost. Price of the produce was collected from the local markets to compute total production cost, gross return, gross margin and benefit-cost ratio. Data were analysed by using statistical software Mstat-C. Means were compared with least significant difference (LSD) test.

Source of Information: FMPHT division report

Article Link (Online Journal):

Funding Source:

1.	Budget:
2. Government	Budget:

Total Budget (Tk.) :

Achievement/Findings:

Tillage intensity could be reduced to establish transplanted rice without sacrificing yield. Single pass wet tillage could be promoted in the traditional puddled rice cultivation areas in High Barind Tract. Transplanting rice in unpuddled strip and bed was also promising in boro season.

Knowledge Management: Report/Proceedings