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Management of Organic Manure and Inorganic Fertilizer in the Maize-mungbean/dhaincha-t. Aman Rice Cropping Pattern for Increased Crop Production

M. H. RAHMAN
Soil Science Division, Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh

M. R. ISLAM
Department of Soil Science, Bangladesh Agricultural University (BAU), Mymensingh, Bangladesh

M. JAHIRUDDIN
Department of Soil Science, Bangladesh Agricultural University (BAU), Mymensingh, Bangladesh

M. Q. HAQUE
Soil Science Division, Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh

Abstract/ Executive Summary:

The study was conducted at the On Farm Research Division (OFRD) farm, Rangpur from 2002-2003 to 2004-2005 to see the effect of inorganic fertilizers along with organic manure and mungbean residue on soil properties and yield of crops. For the first crop (maize), there were five treatments. After harvest of maize, mungbean and dhaincha (Sesbania) seeds were sown as per treatments. For T. Aman rice (third crop), each of the treatments (T₂ and T₃ plots) were subdivided into six, so there were altogether 15 treatments. Integrated use of manure and inorganic fertilizers (IPNS basis) produced comparable seed yield of maize with the chemical fertilizers alone irrespective of moderate or high yield goal basis (MYG or HYG). The highest maize yield of 10.02 t/ha was obtained from the treatment T₅, which produced significantly highest yield over all other treatments. During the growing period of mungbean, temperature coupled with rainfall encouraged vegetative growth of mungbean and as a result, pod formation was low. The incorporation of Sesbania biomass and mungbean residue along with inorganic fertilizers for MYG produced identical grain yields of T.Aman rice with the fertilizers alone for HYG. The highest grain yield 4.31 t/ha was found in IPNS dhaincha along with fertilizers for HYG treatment. There was no remarkable change in post harvest soil status during the growing period. It may be concluded that addition of mungbean residues or Sesbania biomass before T. Aman rice may ensure higher crop productivity and sustain soil fertility.

Keywords: Management, Soil fertility, Yield, Organic manure and IPNS

Location: Rangpur

Start Date: 00-00-2002

End Date: 00-00-2005

Program Area: Farming System

Commodity: Maize, Mungbean, Rice

Objectives:

To see the effect of inorganic fertilizers along with organic manure and mungbean residue on soil properties and yield of crops.

Methodology:

The experiment was conducted at the On Farm Research Division (OFRD) farm, Rangpur for consecutive three years from 2002 to 2005. The experiment was laid out in a randomized complete block design (RCBD) with three replications. For the first crop (maize), there were five treatments with a plot size (3.75 m x 4 m). After harvest of maize, mungbean and dhaincha (Sesbania) seeds were sown in T₂(MYG) and T₃ (HYG) treatments. Each of the treatments were subdivided into six (6) plots having a plot size (3.75 m x 4 m) and plots as per treatments. For T.Aman rice (third crop), each of the treatments T₂ and T₃ plots were subdivided into six, so there were altogether 15 treatments. Maize was sown in the second week of November and harvested in the second week of April. Mungbean residues and dhaincha (Sesbania) biomass were incorporated to the soil as manure before transplanting of aman rice. Nitrogen content of the mungbean stover and dhaincha (Sesbania) was determined. Transplanted aman rice was harvested at full maturity. The yield and yield contributing characters of all the crops were recorded. Weeding, thinning, mulching, spraying of fungicide and irrigation were given as and when necessary. Three composite soil samples were collected from 0-15 cm depth of the experimental plot before fertilization and after completion of three years’ crop cycles. Collected samples were analyzed and compared with the initial soil status. Plant samples were also collected and analyzed in the laboratory following standard methods for the determination of different parameters/ nutrients.

Source of Information: Bangladesh J. Agril. Res. 37(2): 225-234, June 2012, ISSN 0258-7122

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Between the two cereals (Maize-T.Aman rice), cultivation of mungbean/sesbania and its incorporation in the soil may cause addition of organic matter, recycling of nutrients and made available for the crops ultimately improved organic matter status. Growing of mungbean reduced 14 kg N/ha and dhaincha reduced 19 kg N/ha to the subsequent T.Aman rice cultivation. Farmyard manure can be used as good source of soil organic matter. Considering soil fertility and crop yield, the legume residue incorporation along with chemical fertilizers based on IPNS was found to be the best treatment for T. aman rice. Therefore, we need to include mungbean residues or dhaincha manuring in the pattern for sustaining of soil fertility and improvement of crop productivity.

Knowledge Management: Journal