PJB-2024-257
EFFECT OF BIOCHAR BASED RHIZOBIUM BIOFERTILIZER ON GROUNDNUT PRODUCTION
Mavra Shakeel
Abstract
Groundnut (Arachis hypogaea.L) belongs to Leguminosae family. Synthetic fertilizers are being used for production of crops but they have negative impact on soil microbes including Rhizobium. To resolve this issue use of biofertilizer instead of synthetic fertilizer is an alternative option. So this study was planned to use biochar based bio fertilizer for groundnut production. Quality parameters of Biochar based biofertilzer were observed. The four treatments T1 (Control), T2 (Recommended fertilizer N/P 30-100 kg ha-), T3 (Biochar+Half N/P 15-50 kg ha-) and T4 (Biochar) were used for production of Groundnut (Arachis hypogaea.L) variety “Bari 2016”. The quality parameters results revealed that after six months, the number of cells reduced from 106 /g carrier to 104/g carrier and moisture content from 40 % to 16 % while there was no change in pH (7). In field experiment, Data indicated that T3 (Biochar+Half N/P 15-50 kg ha-) showed best results as compared to other treatments. The pods number per plot were recorded (633). Similarly total number of pods per plant were 64 consisting of 59 mature and 5 immature pods. Out of 59 mature, 58 were filled pods and 1 was unfilled. Among 58 filled pods, 15 pods having 1 seed, 19 pods having 2 seeds and 24 pods having 3 seed were recorded. The average plant height (21.2 inches), no of branches (36), No. of lateral roots (142), root length (9.8 inches) and root nodules (115) per plant were recorded. The 100 seed weight 65.3g and shelling percentage 68.9 % were recorded. It was concluded that biochar have a positive impact on groundnut production. This experiment will be helpful for farmers in selection of biofertilizer for their crops.
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