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Integrated Management of Root-knot Nematode of Indian Spinach with Organic Soil Amendments and Nematicide

Md. Iqbal Faruk
Senior Scientific Officer
Plant Pathology Division, BARI, Gazipur

F E Elahi
Scientific Officer
Plant Pathology Division, BARI, Gazipur

R. Momotaz
Scientific Officer
Plant Pathology Division, BARI, Gazipur

Abstract/ Executive Summary:

A field experiment was conducted to evaluate nematicide Furadan 5G and organic soil amendments, poultry refuse (PR) and mustard oilcake (MOC) to control root knot nematode of Indian spinach. Organic amendments were incorporated in the soil 3 weeks before and Furadan 5G on the day of seedling transplanting. PR 3 t/ha and MOC 0.3 t/ha were used alone and integrated with Furadan 5G 20 kg/ha. The soil was inoculated with galled roots of Indian spinach at the time of treatment application. Two organic soil amendments alone or integration with Furadan 5G gave satisfactory reduction of root-knot and increase plant growth of Indian spinach. Among the treatments, poultry refuse alone and its combination with nematicide appeared to be the best amendments for root knot nematode reduction and improvement of plant growth of Indian spinach. The yield data of Indian spinach will be completed after final harvest.

Keywords: Indian spinach, Root knot nematode, Soil amendments

Location: BARI, Gazipur

Start Date: 00-00-2010

End Date: 00-00-2011

Program Area: Pest Management

Commodity: Indian spinach

Objectives:

To observe the efficacy of two organic soil amendments poultry refuse and mustard oil cake along with a nematicide Furadan (Carbofuran) in controlling the root-knot nematodes in Indian spinach

Methodology:

The experiment was conducted during Kharif-1 2010-11, at the experimental field of Plant Pathology Division. The field was well prepared with power tiller and prepared raised unit plot. The unit plots size 3m x 2m. Poultry refuse and mustard oil cake were applied three weeks before seedling transplating and were incorporated with the soil properly for well decomposition. The nematicide Furadan 5G was applied at the time of seedling transplanting. The root-knot nematode infected roots of Indian spinach were collected from nematode sick bed and cut into pieces and used as inoculum @ 2g/plant. The seedlings of Indian spinach were prepared in the seed bed. Thirty days old seedlings were transplanted keeping plant to plant distance 50 cm and line to line distance is 60 cm. Ten additional seedlings were transplanted in between two line for data collection. Necessary intercultural operations were done as per recommendation. After 60 days of seedling emergence, the additional ten seedlings were uprooted for data collection. The following data were recorded by standard procedures. i) Length (cm)/plant and fresh weight (gm/plant of shoot) ii) Length (cm)/plant and fresh weight (g/plant of root) iii) Leaf yield/plot iv) Gall index (0-10 scale) (Zeck, 1971) at 60 days after seed sowing and at final harvesting stage

Source of Information: Annual Report 2010-11, BARI

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

All treatments had significant effect on the growth of Indian spinach and reducing root-knot nematode disease severity. The highest plant growth in terms of shoot length and weight were recorded when poultry refuse (@ 5 t/ha) alone or in combination with Furadan 5G (PR 3 t/ ha +Furadan 5G 20 kg/ha) were used and the lowest was resulted from control treatment where soil amendment or nematicide was not used (Table 138). Mustard oil cake alone or in combination with Furadan 5G also had significant effect on the growth of Indian spinach and suppressing root-knot disease. The highest gall indices (4.33 at 60 days) were observed from control treatment. Application of poultry refuse alone (5 t/ha) gave the maximum yield of fresh leaf of Indian spinach followed by integration of poultry refuse (3 t/ha) with Furadan 5G (20 kg/ha), Mustard oil cake (300 kg/ha) with Furadan 5G (20 kg/ha) and Mustard oil cake (600 kg/ha) and minimum yield was recorded from control treatment where no soil amendments were used. Poultry refuse alone (5 t/ha) or integration of poultry refuse (3 t/ha) with Furadan 5G (20 kg/ha) increased more than 20% yield of Indian spinach compared to control. Application of Mustard oilcake alone or in combination with Furadan 5G also sharply increased the yield of Indian spinach. The treatment which received only Furadan 5G was suppressed nematode disease incidence and increased plant growth as well yield of Indian spinach significantly but failed to achieve the highest reduction of root-knot disease.

Knowledge Management: Report/Proceedings