Summary
This field experiment evaluated the impact of drip fertigation using water-soluble and straight fertilisers at three dose levels (125%, 100%, and 75% recommended dose) on soil nutrient status, plant nutrient content, and yield of hybrid chilli CCH1 across two cropping seasons. The application of 100% recommended dose of water-soluble fertilisers combined with liquid biofertilisers produced the most favourable outcomes for soil and leaf nutrient concentrations and yield parameters, suggesting an optimal fertilisation strategy for this hybrid under drip irrigation conditions.
Regional applicability
This study was conducted in India and directly addresses fertigation practice in tropical/subtropical horticulture. UK applications would be limited to glasshouse or protected cropping of chilli; the results may not transfer directly to temperate field conditions, though the underlying principles of drip fertigation optimisation could inform soilless or protected cultivation systems in the United Kingdom.
Key measures
Available soil nitrogen, phosphorus, potassium; leaf nitrogen, phosphorus, potassium; number of fruits per plant; fruit girth; fruit weight; green fruit yield per plant and per plot
Outcomes reported
The study measured soil nutrient parameters (available nitrogen, phosphorus, potassium), plant leaf nutrient concentrations (nitrogen, phosphorus, potassium), and yield attributes (number of fruits per plant, fruit girth, fruit weight, green fruit yield) in hybrid chilli under different fertigation regimes. Soil and plant nutrient contents generally increased to 120 days then declined; 100% recommended dose of water-soluble fertilisers with liquid biofertilisers achieved highest soil, plant nutrient and yield values.
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