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

Impact of Maize-rice-potato Cropping Sequence on the Soil Fertility and Crop Productivity

Pranesh Kumar Saha
Principle Scientific Officer
Soil Science Division, BRRI Gazipur

Masuda Akhter
Senior Scientific Officer
Soil Science Division, BRRI Gazipur

Abdul Jalil Mridha
Chief Scientific Officer
Agronomy Division, BRRI Gazipur

S. Kaiser Zaman
Chief Scientific Officer
Soil Science Division, BRRI Gazipur

Abstract/ Executive Summary:

In Gazipur, there was no significant effect of fertilizer on cob no./plant, cob length (cm), grain/cob, 1000 grain weight while at Rangpur, application of inorganic fertilizer alone or in combination with poultry manure showed a positive result on all parameters except cob no./plant. In both locations, application of fertilizer significantly increased the tiller and panicle no, grain and straw yield. Application of fertilizer significantly increased the tuber yield of potato at one size: 30-100 g (except Gazipur site) and >100g as well as total yield and biomass as oven dry basis at both locations. In Gazipur, the significantly highest yield of 8.76 t/ha at size >100g was obtained. In Rangpur, all treated plots produced significantly identical tuber yield at size: 30-100g. The amount of N, P, K, S and Zn absorbed by maize, T. Aman and potato crops of two locations varied widely with the treatments and yield levels. As the biomass production was higher in AEZ basis dose, STB and poultry manure + IPNS chemical fertilizer treated plots, the nutrients uptake was also higher in those treatments. Addition of poultry manure with IPNS based chemical fertilizer slightly improved nutrient uptake compared to STB, where chemical fertilizers were only applied.

Keywords: Soil fertility, Crop productivity, Rice cropping pattern, Poultry manure

Location: BRRI farm, Gazipur and BRRI R/S farm, Rangpur

Start Date: 01-07-2007

End Date: 30-06-2009

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer

Objectives:

1. to examine the effect of maize-rice-potato cropping sequence on sustainable soil fertility to develop appropriate fertilizer management strategies for maize-rice-potato cropping sequence.

Methodology:

Two field experiments were initiated at the BRRI farm, Gazipur and BRRI R/S farm, Rangpur during the Kharif-1, 2007. This was the second year (2008-2009) experiment. The soil texture of BRRI farm, Gazipur and BRRI R/S farm, Rangpur is silt loam having slightly acid in reaction and sandy loam having strongly acidic reaction, respectively. Six treatment combinations were tested: T₁ = Native nutrient; T₂ = AEZ basis (BARC fert. Recom. Guide, 2005); T₃ = Soil test based (STB) dose; T₄ = 20% more than STB dose; T₅ = Poultry Manure (PM) @ 3 t/ha (oven dried) + IPNS basis inorganic fertilizer for maize and potato crop/T₅ = same as T₃ for T.Aman crop and T₆ = Farmers’ practice (based on farmer’s interviewed of 15/20 local farmers). The experiments were laid out in a randomized complete block design with three replications. The sources of N, P, K, S, Zn, B and Mg were urea, TSP, MP, gypsum, zinc sulfate, borax and magnesium sulfate, respectively. Except urea, all other inorganic fertilizers were applied at final land preparation for all crops in the cropping pattern. Well decomposed PM was applied at final land preparation for maize and potato. Urea was applied into three equal splits for maize and T. Aman crop: 1/3 N as basal, 1/3 N at 25-30 day after sowing (maize)/1/3 N at 15-20 DAT (T. Aman) and 1/3 N at 45-50 DAS (maize)/1/3 N at 27-30 DAT (T. Aman). For potato, urea was applied into two equal splits: ½ as basal and rest ½ at 30-35 DAS. Necessary intercultural operations were done as and when ever required for each crop.

Source of Information: Proceedings of BRRI Annual Internal Review, 2008- 2009

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Integrated fertilizer management trial in a potato – maize – T. Aman cropping pattern shows that the treatment receiving INPNS dose of fertilizer with 3 t poultry manure/ha gave the highest rice equivalent yield of 21.42 t/ha at Rangpur, while the farmers’ practice gave the highest yield (14.89 t/ha) at Gazipur. The apparent N and K balance in all the tested treatment was negative at both the locations, but the P balance was positive. The positive P balance of 142 kg/ha at Gazipur and 116 kg/ha at Rangpur in IPNS with 3 t PM/ha appeared to be a luxurious dose and should be reduced.

Knowledge Management: Report/Proceedings