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Effect of Different Planting Systems in Maize-spinach-red Amaranth Intercropping Systems

Faruque Ahmed
SO
Agronomy Division, BARI, Gazipur

M. A. H. S.Jahan
SO
Agronomy Division, BARI, Gazipur

Abstract/ Executive Summary:

An experiment on maize-spinach-red amaranth intercropping was conducted during rabi season of 2002-2003 and 2003-2004 at Joydebpur, RARS Jesssore and Jamalpur to find out suitable planting geometry and intercrop combination. Maize yield did not differ due to intercropping. Sole maize, spinach and red-amaranth gave higher yield than those of their intercropped combinations at all the locations. Maize normal row + 3 rows spinach-red amaranth gave the highest LER at Joydebpur and Jessore in both the years while at Jamalpur that was higher in maize paired row + 7 rows of spinach-red amaranth. However, in almost all the locations the highest benefit cost ratio was observed when 3 rows of spinach-red amaranth were grown with normal row maize.

Keywords: Maize, Spinach, Red amaranth, Intercropping

Location: Joydebpur, RARS Jesssore and RARS, Jamalpur

Start Date: 17-11-2003

End Date: 06-05-2004

Program Area: Farming System

Commodity: Maize, Spinach, Amaranth

Objectives:

To find out suitable planting geometry and intercrop combination of maize, amaranth and spinach.

Methodology:

The experiment was conducted at the Farm of Central Research Station of BARI, Joydebpur, Gazipur, RARS Jessore and Jamalpur during rabi season of 2002-2003 and 2003-2004. Eight treatments (six intercrop combinations and sole maize; and sole spinach/red amaranth) were tested in a randomized complete block design with three replications. The treatments were as follows: T₁ = Sole maize (75 cm x 25 cm) (normal) T₂ = Sole Spinach-red amaranth (15 cm apart line sowing) T₃ = Maize normal row + 1 rows of spinach-red amaranth T₄ = Maize normal row + 2 rows of spinach-red amaranth T₅ = Maize normal row + 3 rows of spinach-red amaranth T₆ = Maize paired row + 3 rows of spinach-red amaranth T₇ = Maize paired row + 5 rows of spinach-red amaranth T₈ = Maize paired row + 7 rows of spinach-red amaranth The unit plot size was 6m x 4.5m. Seeds of Maize (Pacific-984) and spinach (Copi Palong) were sown December 01, Nov. 17 and Nov. 22, 2003 at Joydebpur, Jessore and Jamalpur, respectively. Maize spacing was 75 cm x 25 cm for normal and 37.5/150/37.5 cm for paired rows. Sole spinach was sown at 15 cm apart in line. Fertilizers were applied at the rate of 250-55-100-30 kg/ha N, P K and S as urea, triple super phosphate (TSP), muriate of potash (MP) and gypsum. One third of N, whole amount of TSP, MP and gypsum was applied as basal. Remaining 2/3 N was top-dressed at 30 and 55 days after emergence. Spinach was harvested at 40-45 DAS at different locations. Then seeds of Red-amaranth (BARI Lalshak-1) were sown in the same field as intercropped with maize following the same planting system of spinach. Red amaranth was harvested at 25-35 days after sowing having 70-75 DAS of maize at different locations while maize was harvested at 147-155 DAS at different locations. The yield component data for maize was collected from 5 randomly selected plants prior to harvest from each plot. At harvest, the yield data was recorded plot wise. The data were analyzed statistically and mean separation was done by DMRT.

Source of Information: Annual Report, Agronomy Division 2003-2004

Article Link (Online Journal):

Funding Source:

1. Asian Development Bank

Budget: 10,000/-

Total Budget (Tk.) : 10,000/-

Achievement/Findings:

From the results average over two years at different locations it is revealed that 3 rows spinach/red amaranth with maize normal row planting system is feasible for higher economic benefit.

Knowledge Management: Report/Proceedings