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Effects of Phosphatic Biofertilizer with Inorganic and Organic Sources of Phosphorus on Growth and Yield of Lentil

M. A. Haque
Soil Microbiology Lab, Soil Science Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh

M. K. Khan
Soil Microbiology Lab, Soil Science Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh

Abstract/ Executive Summary:

Field experiments were conducted to evaluate the effects of phosphatic biofertilizer with inorganic or organic sources of P on lentil (Lens culinaris Medikus) (var. Binamasur 2), Phosphatic biofertilizer (PB). All the fertilizers and cowdung were applied on the basis of soil test values and Integrated Plant Nutrient System (IPNS). Mixed cultures of two phosphate solubilizing bacteria were used as phosphatic biofertilizer (PB). PB was applied as liquid form with lentil seeds before sowing. Phosphatic biofertilizer with inorganic or organic sources of P influenced the growth and yield attributes and yields of lentil at both the locations. Phosphatic biofertilizer with 50% P from TSP gave the highest seed and stover yields as well as total P uptake by lentil compared to the 100% P from TSP. The results revealed that 50% inorganic or organic sources of P can be saved by the integrated using of phosphatic biofertilizer for the lentil cultivation in Bangladesh.

Keywords: Manures, Lentil yield, Phosphatic biofertilizer, P fertilizer, P uptake

Location: BINA substation, Ishurdi and BINA substation, Magura

Start Date: 00-00-2011

End Date: 00-00-2012

Program Area: Crop-Soil-Water Management

Commodity: Lentil

Objectives:

1. The present study was under taken to evaluate the effects of phosphatic biofertilizer on the growth and yield of lentil at the different locations of Bangladesh.

Methodology:

Field experiments were conducted to evaluate the phosphatic biofertilizer with inorganic or organic sources of P on lentil at BINA substation, Ishurdi and BINA substation, Magura during rabi season of 2011-12. The experiments were laid out in a Randomized Complete Block Design using eight treatments with three replications. The treatments were as follows: T₁: Control, T₂: 100% P from TSP, T₃:50% P from TSP, T₄: 100% P from TSP + Phosphatic biofertilizer (PB), T₅: 50% P from TSP + PB, T₆: 50% P from cowdung (CD), T₇: 50% P from CD + PB and T₈: Phosphatic biofertilizer (PB). Lentil (var. Binamasur 2) was shown on 17 and 18 November 2011 at Ishurdi and Magura, respectively. Lentil crop was harvested on 14 March 2012 at Ishurdi and 6 March 2012 at Magura.when attained at full maturity. The fertilizer rates were used on the basis of soil tests. In case of cowdung treatments, Integrated Plant Nutrient System (IPNS) was followed. Phosphatic biofertilizer (PB) was prepared with mix cultures of Pseudomonas aeruginosa and P. fluorescens. PB was applied as liquid form (109 cfu ml^-1broth) with the seeds of lentil. Soil and plant samples were chemically analyzed following standard methods. Different growth and yield attributes and yields data such as plant height (cm), nodules number plant^-1, nodule weight plant^-1, pods number plant^-1, seeds number plant^-1, 1000-seed weight (g), seed and sotver yields ha^-1 were recorded. Phosphorus contents in the digested seed and stover samples were determined colorimetrically by vanado-molybdo yellow colour method to estimate the total uptake of P by lentil crop.

Source of Information: J. Environ. Sci. & Natural Resources, 5(2): 225 - 230 , 2012; ISSN 1999-7361

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It can be concluded that 50% inorganic or organic sources of P fertilizers can be saved with the integrated use of phosphatic biofertilizer for the cultivation of lentil at different locations of Bangladesh.

Knowledge Management: Journal