SYNOPSIS OF THE PROPOSED RESEARCH PROJECT FOR NATIONAL SCIENCE AND TECHNOLOGY

SYNOPSIS OF THE PROPOSED RESEARCH PROJECT FOR NATIONAL SCIENCE AND TECHNOLOGY

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  TITLE: In English: Responseof Boro Rice to Foliar Spray of Zinc and Boron INTRODUCTION: Nutrient stresses in Bangladesh soils are increasing day by day. Before 1980’s, deficiency of NPK was a major problem in Bangladesh soils, and thereafter along with NPK, deficiency of Zn and B are frequently reported (Rehman et al., 2014). A very recent study on the delineation of soil micronutrient status of AEZs 1, 2, 3, 19 and 22 reveals that 49% soils are potentially deficient in Zn and 33% in B (Jahiruddin and Islam, 2014). Zinc is an exceptional micronutrient regarding its relevance in biological systems because it is the only micronutrient represented in all classes of enzymes. Boron (B) is known to play important roles in the structures of cell walls and membranes and in the integrity and functions of membranes in plants. Silberbush (2002) reported that foliar fertilization is widely used practice to correct micro-nutritional deficiencies in plants caused by improper supply of nutrients to roots. However, higher plants can also absorb mineral nutrients when applied as foliar sprays in appropriate concentrations (Karim et al., 2015). Furthermore, it is an economical way of supplementing the plant’s nutrients when they are in short supply or unavailable form in the soils and it has been shown that the efficiency of foliar application is three to five folds greater than soil-applied fertilizers, and can thus significantly reduce the amount of fertilizer usage (Jamal et al., 2006). Rice is an important crop in our rice based cropping system which greatly affected due to shortage of Zn and B in soil. So, this experiment could be a way out of checking yield loss due to shortage of micronutrients in soils. OBJECTIVES: • To study the effects of Zn and B on the growth, and yield of Boro rice. • To determine the spraying nutrient concentration of Zn and B in Boro rice. • To ascertain the time of Zn and B foliar spray in Boro rice for optimum yield. METHODOLOGY: Experimental site: This experiment will be conducted at the agronomic field of Sher-e-Bangla Agricultural University, Dhaka-1207. Crops : Boro rice Variety : BRRI dhan29 Sources ofseed: BRRI (Bangladesh Rice Research Institute) Treatments : Foliar spray: T1: Recommended Fertilizer (RF) T2: RF+ Foliar spray (FS) with water at tiller initiation (TI) T3: RF+ Foliar spray (FS) with water at flowering initiation (FI) T4: Zn (0.2%) FS at TI T5: Zn (0.5%) FS at TI T6: Zn (0.8%) FS at TI T7: Zn (0.2%) FS at FI T8: Zn (0.5%) FS at FI T9: Zn (0.8%) FS at FI T10: B (0.5%) FS at TI T11: B (1.5%) FS at TI T12: B (2.0%) FS at TI
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  T13: B (0.5%)FS at FI T14: B (1.5%) FS at FI T15: B (2.0%) FS at FI Experimental Design : Randomized complete block design (RCBD) No. ofReplications : 3 Total No. ofPlots : 45 Plot Size : 2.5m×4m (10m2 ) Time ofExperiment : December 2016 Data collection:Data will be collected on the following parameters: Crop growth parameter: Plant height, crop growth rate at different growing stage, relative growth rate at different growing stage, days of panicle initiation, days of flowering, days of maturation, leaf area index (LAI). Yield contributing and yield parameters: no. of effective tiller/plant, no. of panicle/plant, Panicle length, no. of filled grain/panicle, thousand seed wt., yield (kg/m2 ), yield (ton/ha), biological yield, harvest index. STATISTICAL ANALYSIS OF DATA: The data obtained for different parameters will be statistically analyzed following computer based software MSTAT-C and mean separation will be done by LSD at 5% level of significance. TIME FRAM E OF ACTIVITIES: Activities Duration (months) Review of literature 1 Land preparation, fertilizer application and layout 1 Experimentation and data collection 4 Harvesting & postharvest operations 1 Data analyses 2 Thesis preparation 3 Total 12 SOCIO-ECONOMICIMPORTANCE ANDCONCLUSION: Rice is a major cereal crop used for human consumption in Bangladesh. Annual consumption of rice in Bangladesh at 168 kg/person. It provides 21% of global human per capita energy and 15% of per capita protein. Rice also provides minerals, vitamins, and fiber. Its straw and by-products used as a fodder, fuel and preparation of farm yard manure (FYM). Until cropping pattern of Bangladesh is not improved for soil health point of view, the rice production is not to be sacrificed due to improper fertilizer management. This type of experiment could be helpful for keeping improvement of rice production, thus farmers of Bangladesh will be benefited socio-economically and food security will be achieved. REFERENCES: Rehman,A., Farooq,M., Cheema, Ata., Nawaz1,A. and Wahid ,A. (2014). Foliage applied boron improves the panicle fertility, yield and biofortification of fine grain aromatic rice. J. Soil Sci. and Plant Nutri. 14 (3):723-733. Jahiruddin, M., Islam MR. (2014). Project Report (2011-2014). Requirement of Micronutrients for Crops and Cropping Patterns. PIU-BARC (NATP Phase-I) project. Project ID No. 339. Silberbush, L F. ( 2002). Response of maize to foliar vs soil application of nitrogen-phosphorus potassium fertilizers. J. Plant Nutri. 25:2333-2342.
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  Karim, M.R., Rashid,M.M., Salam, M.A., Mazid, M.A., Momin, M.A. and Islam, M.S. (2015). Effect of Plant Revitalization Hormone and Foliar Fertilization on Growth and Yield of Boro Rice. Bangladesh Rice J. 19(1):33–39. Jamal, Z., Hamayun, M., Ahmad, N. and Chaudhary, M. F . (2006). Effect of soil and foliar application of different concentration Of NPK and foliar application of (NH4)2SO4 on different parameters in wheat. J. Agron. 5(2): 251-256. Researcher Md. Shahadat Hossen Reg. No. 10-03779 M.S. student Jan-Jun,2014 Department of Agronomy Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka-1207