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Effect of Fertilizer Packages on Broadcast Aus Rice in Lentil-b. Aus-blackgram Cropping Pattern in the Char Land of Pabna in Bangladesh

M. Maniruzzaman*
On-farm Research Division, Bangladesh Agricultural Research Institute, Pabna

M. R. Alam
On-farm Research Division, Bangladesh Agricultural Research Institute, Pabna

M.S. Islam
On-farm Research Division, Bangladesh Agricultural Research Institute, Pabna

M.Z. Islam
On-farm Research Division, Bangladesh Agricultural Research Institute, Pabna

M.S.H. Molla
On-farm Research Division, Bangladesh Agricultural Research Institute, Rangpur

M.A. Islam
On-farm Research Division, Bangladesh Agricultural Research Institute, Shampur, Rajshahi

Abstract/ Executive Summary:

The experiment was conducted at Char Sadipur in the char land of Pabna during Aus rice seasons of 2014 and 2015 to determine appropriate fertilizer dose for enhancing yield of B. Aus rice var. Hashikalmi and also to increase farmers’ income in char land under High Ganges River Floodplain (AEZ-11). The experiment was laid out in a randomized complete block design with four dispersed replications. Eight fertilizer packages T1: N40P9K16S6Zn1(STB), T2: N50P9K16S6Zn1, T3: N50P11K16S6Zn1, T4: N50P9K20S6Zn1, T5: N40P11K20S6Zn1, T6: N50P11K20S6Zn1, T7: N30P7K12S4.5Zn0.75 kg ha^-1and T8: Native nutrients (control) were tested for B. Aus rice in Lentil-B. Aus- Blackgram cropping pattern. The treatment N50P11K20S6Zn1 (T6) produced maximum grain yield 2.60 t ha^-1 and 2.81 t ha^-1 of B. Aus rice in 2014 and 2015 cropping season, respectively. The highest gross return (Tk. 61,810 ha^-1 in 2014 and Tk. 72,250 ha^-1 in 2015 cropping season) and gross margin (Tk. 12,214 ha^-1 in 2014 and Tk. 21,550 ha^-1 in 2015 cropping season) was also recorded from N50P11K20S6Zn1 (T6) and lowest from control in both the years.

Keywords: Yield, Mixed cropping, Gross return, Total variable cost, Gross margin

Location: At Char Sadipur in the char land of Pabna

Start Date: 00-00-2014

End Date: 00-00-2015

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer, Rice

Objectives:

The present study was undertaken to determine the optimum fertilizer dose for maximizing B. Aus rice yield in the char land areas of Pabna.

Methodology:

The experiment was conducted at the char land of Char Sadipur areas of Pabna in Bangladesh during the Aus rice seasons of 2014 and 2015. The experimental site was under Gopalpur soil series of the High Ganges River Floodplain (AEZ-11). Before starting the experiment, initial composite soil samples (0-15 cm depth) were collected from the experimental plots and were analyzed in the laboratory. The analytical result indicated that soil was sandy loam with very low organic matter content (0.80%) and slightly alkaline in nature. N content of soil was very low and P, S and Zn content of the soil were low. K content of the soil was medium (Table 1). The experiment was laid out in randomized complete block (RCB) design with three replications. The unit plot size was 5m ×x 4m. Eight treatments consisted of T1: N40P9K16S6Zn1 (STB), T2: N50P9K16S6Zn1,T3: N50P11K16S6Zn1, T4: N50P9K20S6Zn1, T5: N40P11K20S6Zn1, T6: N50P11K20S6Zn1, T7: N30P7K12S4.5Zn0.75 kg ha^-1 and T8: Native nutrients (control) were used in the experiment. The land was prepared by power tiller followed by laddering. After completion of land preparation the entire amount of P, K, S, Zn and 1/3 N were applied as per treatment specification TSP, MP, Gypsum, Zinc sulphate and urea, respectively.

The seeds of B. Aus rice were broadcasted in each plot on 3-5 May, 2014 & 2015 maintaining the seed rate of 50 kg ha-1 in both the seasons. The variety used for the trial was local Hashikalmi. 50% N was applied as basal and the rest amount of N was top dressed in two splits at 25 and 45 Day After Sowing (DAS) in the form of urea. Two times weeding were done at vegetative stage for better growth of the crops. Other intercultural operations such as insect and disease management were done as and when necessary. The rice was harvested on 15-20 August, 2014 & 2015. Necessary data on yield and yield components were collected at proper maturity of the crop. All the recorded data were statistically analyzed using a statistical package MSTAT program of computer and the means differences were adjudged by LSD test. Cost and return analysis of different treatments were done.

Source of Information: Bangladesh Agron. J. 2018, 21(1): 83-88

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Based of this study, it can be concluded that fertilizer packages exerted significant effect on the growth and yield performance of B. Aus rice at the Char land of Pabna. The treatment N50P11K20S6Zn1 (T6) demonstrated better performance on yield and yield attributes of B. Aus than the other treatments. The maximum economic return in terms of gross return and gross margin was also recorded with the same fertilizer packages.

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