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Direct and Residual Effects of Micronutrients and Organic Amendments on Yield and Nutrient Uptake in a Wheat-mungbean Cropping System

M. B. Hossain
Bangladesh Institute of Nuclear Agriculture. P. O. Box # 4. Mymensingh-2200

Sultana Ahmed
Bangladesh Institute of Nuclear Agriculture. P. O. Box # 4. Mymensingh-2200

Abstract/ Executive Summary:

Two field experiments were carried out on a loam soil of Gangachara series (Typic Haplaquet) to evaluate the effect of micronoutrients and organic manure on wheat and the residual effects on the following summer mungbean, Wheat responded significantly to the applied micronutrients and organic amendments. The highest grain yield (4253 kg ha^-1) was obtained in S+Zn+Cu+B treatment with a record of 56.6 per cent yield increase over control while the application of S. Zn, Cu, or B alone registered 17.7, 48.8, 38.6 and 49.9 per cent yield increase, respectively. Considerable amount of the applied nutrients had remained in the soil which resulted in increased seed yield and nutrient uptake of the following crop. The effect of both sewage sludge and cowdung on the crop was minimum.

Keywords: Organic, Yield, Nutrient, Wheat-Mungbean

Location: Rangpur area.

Start Date: 00-00-1996

End Date: 00-00-1997

Program Area: Farming System

Commodity: Wheat, Mungbean

Objectives:

To evaluate the direct effect of micronutrients and organic amendments on wheat yield and their residual effects on the following summer mungbean crop.

Methodology:

The experiment was carried out on a Non-calcareous Floodplain soil (Typic Haplaquept) at Rangpur during Rabi (Wheat) and Kharif-1 (Summer mungbean) seasons of 1996-97. The experimental soil is loam having pH 5.7. cation exchange capacity 9.7 cmol (+) kg^-1, total N 1.0%. available P (Bray and Kurtz) 5.86 mg kg^-1, exchangeable K 0.22 cmol (+) kg^-1 , available S 9.9 mg kg^-1, DTPA extractable Zn 0.16 mg kg^-1, available B 0.25 mg kg^-I, and Cu content 0.92 mg kg^-1. The experiment was laid out in randomized complete block design comprising nine treatments with there replications. The variety of wheat was Kanchan. The treatments were as T₁-Control (NPK), T₂-S, T₃-S+Zn, T₄-S+Cu, T₅-S+B, T₆- S+Zn+Cu+B, T₇-Half the amount of NPKS ie, 50, 12.5,15 and 10 kg ha^-1, respectively + 50kg N ha^-1 from sewage sludge, T₈- Half the amount of NPKS + 100 kg N ha^-1 from sewage sludge, T₉-Half the amount of NPKS + cor dung@5 t ha^-1. The doses of micronutrients were 5 kg Zn ha^-1, 2.5 kg Cu ha^-1, 2 kg B ha^-1, applied from ZnSO₄ 7H₂O, CuSO₄.5H₂O and boric acid, respectively. Sulphur was applied at the rate of 20 kg ha^-1 from gypsum. The unit plot size was 4m x 3m. Blanket doses of NPK at the rate of 100,25 and 30 kg ha^-1 were applied from urea, TSP and muriate of potash; respectively. All the fertilizers except urea were added to soil during final land preparation. Urea was applied in three equal splits, the first dose during land preparation and the remaing doses at tillering and booting stages of crop growth. Cultural practices as weeding, thinning etc. were done as and when necessary. Irrigation was given as per crop requirement. The crop was harvested at maturity. After harvest of wheat, all the unit plots were brought under Summer mungbean (cv. BINA mung-2) cultivation. The plot received a blanked doses of NPK at the rate of 20, 30 and 20 kg ha+, respectively. Summer mungbean was harvested in two stages at maturity. Both wheat and mungbean samples were oven dried at 6.5°C for 48 hours and ground. Total N, S, Zn, Cu and B contents in plant samples were determined following the standard analytical methods.

Source of Information: Bangladesh J. Soil. Sci. 26: 89 - 94, 2000 (December)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Application of micronutrients Zn, B and Cu along with NPKS is necessary for obtaining satisfactory yield of wheat and the following crop mungbean.

Knowledge Management: Journal