Effect of fertilizer, manure and irrigation on nutrient availability in soil of boro rice field

Abstract

The experiment was conducted in the farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh to study the effect of various organic manures and inorganic fertilizers with different water management on the nutrient availability of boro rice field. BRRI dhan29 was used as the test crop in this experiment. The experiment consists of 2 factors i.e. Irrigation and fertilizer plus manure. Two levels of irrigations (I₁= Continuous flooding and I₂= Saturated Condition) were used with 8 levels of fertilizer plus manure, as T₀: Control, T₁: 100% ( N₁₂₀P₂₅K₆₀S₂₀Zn₂) Recommended dose of Fertilizer, T₂: 50% NPKSZn + 5 ton cow-dung ha^-1, T₃: 70% NPKSZn + 3 ton cow-dung ha^-1, T₄: 50% NPKSZn + 5 ton compost ha^-1, T₅: 70% NPKSZn+3 ton compost ha^-1, T₆: 50% NPKSZn + 3.5 ton poultry manure ha^-1 and T₇: 70% NPKSZn+2.1 ton poultry manure ha^-1, with 16 treatment combinations and 3 replications. The pore-water samples were collected and analyzed during rice growing period. The higher concentrations of N, P and K were found in the pore water of T₆ (50% NPKSZn + 3.5 ton poultry manure ha^-1) and T₇ (70% NPKSZn + 2.1 ton poultry manure ha^-1) treatments where higher yield were obtained. The higher N, P, K & S concentrations and uptake were observed in the treatments where fertilizer plus manure were applied. The highest concentrations of grain N (1.31%), P (0.272%), K (0.195%) and S (0.091%) were recorded from T₅, T₃, T₇ and T₂ treatment respectively and lowest from T₀ (Control) treatment.

Keywords

• Boro rice field,Effect of fertilizer,manure,irrigation,nutrient availability in soil

References

1. Beinroth, F.H., Eswaran, H., Reich, P.F., 2001. Land quality and food security in Asia. In: Response to land degradation. Bridges, E.M., Hannam, I.D. Penning de Vries, F.W.T., Scherr, S.J., Sombatpanit, S. (Eds.). Science Publishers, Enfield, USA, pp. 83-97.
2. Golabi, M.H., Denney, M.J., Iyekar, C., 2007. Value of composted organic wastes as an alternative to synthetic fertilizers for soil quality improvement and increased yield. Compost Science and Utilization 15(4): 267-271.
3. Jones, Jr.J.B., 2001. Laboratory guide for conducting soil tests and plant analysis. CRC Press, New York, USA. 363p.
4. Palm, C.A., Myers, R.J., Nandwa, S.M., 1997. Combined use of organic and inorganic nutrient sources for soil fertility maintenance and replenishment. In: Replenishing soil fertility in Africa. Buresh, R.J., Sanchez, P.A., Calhoun, F. (Eds.). Soil Science Society of America, Special Publication 51., Wisconsin, Madison, USA. pp.193-217.
5. Pequerul, A., Pérez, C., Madero, P., Val, J., Monge, E., 1993. A rapid wet digestion method for plant analysis. In: Optimization of Plant Nutrition. Fragoso, M.A.C., van Beusichem, M.L. Houwers , A. (Eds.). Developments in Plant and Soil Sciences, vol 53. Springer, pp. 3-6.
6. Rejesus, R.M., Mutuc, M.E.M., Yasar, M., Lapitan, A.V., Palis, F.G., Chi, T.T.N., 2012. Sending Vietnamese rice farmers back to school: further evidence on the impacts of farmer field schools. Canadian Journal of Agricultural Economics 60(3): 407-426.
7. Sahrawat, K.L., 1980. A rapid nondigestion method for determination of potassium in plant tissue. Communications in Soil Science and Plant Analysis 11(7): 753-757.
8. Yang, C., Yang, L., Yang, Y., Ouyang, Z., 2004. Rice root growth and nutrient uptake as influenced by organic manure in continuously and alternately flooded paddy soils. Agricultural Water Management 70(1): 67-81.