Introduction
- Jowar (Sorghum bicolor) is a hardy C4 crop well-suited to drylands with erratic rainfall.
- In Andhra Pradesh it is grown in red/chalka soils (Kharif) and medium/deep black soils (Rabi); major districts include Nandyal, Guntur, Bapatla, Y.S.R, Anantapuramu, Kurnool, and Prakasam.
- Seasons: Kharif (June–July sowing; Oct–Nov harvest); Rabi (Sept–Nov sowing; Feb–Mar harvest).
- Choose drought-tolerant and pest-resistant varieties/hybrids (shoot fly/stem borer resistance) for rainfed areas; dual-purpose types are popular for grain + fodder.
- Yields: Rainfed Kharif ~2–4 t/ha; irrigated Rabi can reach 4–7+ t/ha with good management.
Popular Varieties / Hybrids
- Hybrids: CSH 14, CSH 16, CSH 25, CSH 30, CSH 35, CSH 41 (high-yielding Kharif hybrids).
- Varieties: CSV 15, CSV 17, CSV 20, CSV 27, CSV 31 (Palamuru Jonna), CSV 36, CSV 39; state-specific: SiA 3088, SiA 3156, Lepakshi, Narasimharaya, PS 4, NTJ-5.
Step 1: Soil Preparation
Jowar adapts to diverse soils but prefers well-drained conditions. Ideal: sandy loam to loamy, red/chalka soils for Kharif and medium/deep black soils for Rabi. pH range 5.5–8.5.
Detailed Process:
- Debris Removal: Clear the field of all weeds, old stubble, and crop residues.
- Primary Tillage: Plough the field 2–3 times, ensuring one deep plough (20–30 cm) to break the hardpan.
- Surface Refinement: Use a harrow to break clods and achieve a fine tilth.
- Drainage Planning: In rainfed Kharif, prepare raised beds or ridges to ensure proper drainage.
- Moisture Retention: Incorporate 5–10 t/ha of FYM or compost during the final ploughing to improve soil water-holding capacity.
- Seedbed Levelling: Level the field precisely for uniform sowing and moisture access.
- Basal Nutritional Support: Apply basal fertilizers (typically 60–80 kg N, 40 kg P2O5, 40 kg K2O/ha) as per soil test recommendations.
Step 2: Sourcing Seeds
Certified seeds ensure vigorous growth and pest resistance. Buy from trusted agricultural corporations.
Detailed Process:
- Variety Selection: Choose hybrids (CSH series) or varieties (CSV series) suited to your season (Kharif/Rabi).
- Source Verification: Purchase from APSSDC, ANGRAU centers, or NSC-certified dealers.
- Quality Assurance: Check for a certified tag with at least 80% germination and high purity.
- Seed Calculation: Secure 7–10 kg of seed per hectare for hybrids.
- Protection Treatment: Treat seeds with fungicides (Thiram) and insecticides (Imidacloprid) to prevent shoot fly and early diseases.
Step 3: Sowing (Transplanting)
Uniform spacing and correct sowing depth are vital for achieving the target plant population.
Detailed Process:
- Timing Alignment: Sow in late June–July for Kharif or mid-Sept–Nov for Rabi.
- Sowing Technique: Use a seed drill or dibbling method for even distribution.
- Depth Control: Ensure seeds are placed 4–6 cm deep in the soil.
- Spacing Standard: Maintain 40–45 cm between rows and 12–15 cm between individual plants.
- Thinning Protocol: Sow 2–3 seeds per hill and thin to 1 healthy plant after 10–15 days of emergence.
- Critical Moisture: If dry during germination, provide a light 'life-saving' irrigation if available.
Step 4: Harvesting
Proper harvesting and drying stages are essential to maintain grain quality and prevent storage losses.
Detailed Process:
- Maturity Identification: Harvest when grains harden and the outer glumes turn straw-coloured.
- Moisture Target: Aim for 15–20% moisture at the time of harvesting.
- Harvesting Method: Cut panicles manually or use a combine harvester; cut at the base if fodder is also needed.
- Field Drying: Spread panicles in the sun for 3–4 days before threshing.
- Threshing: Employ a mechanical thresher to separate the grains.
- Final Drying: Dry the separated grains until the moisture level reaches 12–14%.
- Storage Management: Store in clean, dry, pest-proof gunny bags or modern silos.
Follow ANGRAU/ICAR recommendations: implement IPM for shoot fly and stem borer (scouting, neem, targeted insecticides), use pre-emergent herbicides or timely hoeing for weed control, split N application, and adopt moisture-conserving practices. Contact local DAATTC or agriculture officer for the latest region-specific advice.
Pro Tip: Dual Purpose
When selecting varieties, consider if you need high grain yield or high biomass for fodder. Multi-cut varieties are excellent for continuous fodder supply.