• Effect of Different Sources of Organic Fertilizer with Different Combination of N, P and K on Yield of Wheat (Triticum aestivum L)

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  • 01/04/2016

Most. Tahmina Akter conducted her BSc thesis research at the Department of Botany at the University of Rajshahi, Bangladesh.


The potential of wheat can only be exploited through proper inputs, plant protection and irrigation. The interest in manure has reemerged due to high prices of inorganic fertilizers. Green, farmyard and organic manure provide long term soil productivity. Rising energy costs and the uncertain availability in developing countries makes their usefulness apparent.

Present study tested combinations of organic manures and different adaptations of the recommended chemical fertilizer (CF) dose (300kg/ha N[1], 240kg/ha K[2], 125kg/ha P [3]) to identify the optimal organic manure and combination with CF for high yields.

In Paba (Rajshahi district) and Patnitala (Naogaon district), on farms participating in SAF-BIN project, wheat variety BARI Gom-26 was used. Three organic manures were tested: PL (3t/ha poultry litter); FYM (3t/ha farm yard manure) and PL/FYM (PL or FYM as control). CF dosages were: CFL1= ½ N, ½ K, ½ P; CFL2 = ½ N, ¼ K, ¼P; CFL3= 1N, 1P, 1K and CFL control = no CF. This resulted in 12 treatments[4] arranged in randomized complete block design. Plant height (cm), fertile tillers/hill, grains/panicle, thousand grain weight (TGW, g) and grain yield (t/ha) were measured. Analysis of variance (ANOVA) was conducted.

All parameters significantly increased trough all treatments with significant differences between treatments. Plant height was the highest in T1. Most fertile tillers/hill were recorded in T1, T2, T3 and T7. Most grains/panicle were recorded in T2. Maximum TGW in T1, T2 and T3. Highest grain yield was recorded in T7.

These results lead to the conclusion that addition of organic fertilizers in the form of PL and FYM significantly increased the yield of wheat. Among 12 treatments T7 (FYM + 1N + 1P + 1K) was the optimal combination of organic and inorganic fertilizers to achieve maximal wheat production.

[1] urea as inorganic source of nitrogen (N)

[2] MOP = mureate of potash as inorganic source of Potassium (K)

[3] TSP = triple superphosphate as inorganic source of Phosphorus (P)

[4] T1 = PL+ CFL1, T2 = PL + CFL2, T3 = PL + CFL3, T4 = PL + CFL control, T5= FYM + CFL1, T6= FYM + CFL2, T7= FYM + CFL3, T8= FYM + CFL control, T9= PL/FYM + CFL1, T10= PL/FYM + CFL2, T11 = PL/FYM + CFL3 and T12 = PL/FYM + CFL control