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.
Primary Language | English |
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Journal Section | Articles |
Authors | |
Publication Date | October 1, 2019 |
Published in Issue | Year 2019 Volume: 8 Issue: 4 |