Description
Farming & Cultivation Guide — Blackgram Siddhi 88
Complete step-by-step agronomic guide for optimal crop management, disease resistance, and premium produce quality.
🌾 Soil Preparation & Field Prep
Proper land preparation ensures uniform seedling emergence and robust root anchorage.
🌱 Ideal Soil Type & pH
Well-drained light to medium textural soils — sandy loam, clay loam, or deep black cotton soil. Optimal pH range: 6.5 – 8.0. The crop tolerates marginal soils but thrives where drainage is assured and waterlogging is absent.
✨ Core Advantage
Loose, well-aerated seedbed ensures rapid radicle emergence and strong early root development critical for Blackgram Siddhi 88, whose small seed size (2.9–3.6 g/100 seeds) demands good soil–seed contact without crusting.
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Deep summer ploughing (25–30 cm) followed by 2–3 cross-harrowings to produce a fine, clod-free tilth for uniform seedbed preparation.
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Field leveling with a drag scraper or leveler; ensure lateral drainage channels are cleared to prevent water stagnation during heavy monsoon rains.
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Incorporate 5–8 t/acre of well-decomposed FYM or farmyard compost during the last harrowing to improve soil structure, water retention, and microbial activity.
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Apply gypsum at 250 kg/acre in alkaline/sodic soils to reduce pH; in acidic soils (pH <6.0), liming at 200–300 kg/acre two weeks before sowing corrects nutrient availability.
🌱 Sowing Time & Method
Precise seed rate and spacing maximize light interception and canopy development.
| Parameter | Recommendation | Agronomic Importance |
|---|---|---|
| Sowing Window | Kharif: Mid-June to mid-July | Rabi: October–November | Summer: February–early March | Aligns germination with adequate soil moisture; avoids late-season moisture stress during pod-filling stage |
| Seed Rate | 25–30 kg/acre for line sowing; 40–50 kg/acre for broadcast sowing | Small seed size (2.9–3.6 g/100 seeds) necessitates adequate seeding to achieve optimum plant population of ~200,000 plants/acre |
| Spacing | 30–45 cm (row-to-row) × 10–15 cm (plant-to-plant); thin to one seedling per station | Optimizes canopy spread, light interception, and air circulation; reduces interplant competition for nutrients and moisture |
| Sowing / Transplanting Depth | 3–4 cm in light soils; 4–5 cm in heavy soils | Ensures adequate moisture uptake by the small seed without exhausting energy reserves before cotyledon emergence |
💧 Irrigation & Water Management
Adequate moisture regulation supports strong vegetative and reproductive growth.
☀️ Water Requirement Profile
Blackgram Siddhi 88 exhibits moderate drought tolerance, making it suitable for rainfed and semi-arid environments. The crop requires approximately 350–450 mm of total water during its 70–80 day lifespan. Under irrigated conditions, 3–4 light irrigations are recommended. The crop is sensitive to both water stagnation and severe moisture deficit. Drip irrigation is well-suited and can save 30–40% water while maintaining uniform soil moisture; install drips at 60 cm spacing with 2 L/h emitters at 30 cm spacing.
🌦️ Soil Moisture Management
In rainfed ecosystems, ensure sowing coincides with adequate soil moisture. Use mulching (straw or polythene) to conserve surface moisture and reduce evaporation. If a gap-filling monsoon break occurs between 20–30 DAS, a single flood or drip irrigation event prevents flower drop. Maintain soil moisture during the pod-development stage (45–65 DAS) as moisture stress at this phase significantly affects seed filling and overall grain quality.
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First irrigation at 5–7 DAS if sowing is followed by dry weather; ensure prompt germination and uniform stand establishment.
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Vegetative phase (15–40 DAS): Irrigate at 10–12 day intervals during dry spells; avoid over-irrigation which promotes lush foliage at the expense of reproductive growth.
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Critical stages — flowering initiation (45–50 DAS) and pod-filling (55–70 DAS): Maintain consistent soil moisture; even a 2–3 day water deficit during full bloom can cause significant flower and pod abortion.
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Withhold irrigation 10–12 days before harvest to allow pods to dry on the plant, ensuring uniform maturity, reduced shattering, and better seed color and test weight.
🧪 Fertilizer & Nutrition Management
Balanced crop nutrition supports robust plant structure and premium produce quality.
| Nutrient | Recommended Dose (per Acre) | Application Method & Timing |
|---|---|---|
| Nitrogen (N) | 20–25 kg N/acre (45–55 kg urea/acre) | 50% basal at sowing with DAP; remaining 50% as top-dressing at 30 DAS. Blackgram's own biological nitrogen fixation supplies part of its N needs, hence reduced N recommendation compared to cereals. |
| Phosphorus (P2O5) | 40–50 kg P2O5/acre (250 kg DAP/acre or 100 kg SSP/acre) | 100% applied basally at sowing, placed 5 cm below and 3 cm beside the seed to avoid direct seed-contact injury while ensuring roots access phosphorus for nodulation and energy transfer. |
| Potash (K2O) | 20–25 kg K2O/acre (35–40 kg MOP/acre) | Apply 100% basally; split application is less critical for pulse crops but split at basal + 30 DAS improves stalk strength and pod-wall integrity. |
🌿 Interculture & Weed Management
Timely weed control ensures optimal nutrient and moisture availability for crop seedlings.
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First Weeding & Hoeing: Carry out at 10–15 DAS using a hand hoe or inter-row cultivator. Blackgram is a poor competitor with weeds during the early vegetative stage; an weed-free period of the first 3–4 weeks is essential for vigorous root and shoot development.
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Second Weeding & Earthing-Up: Perform at 25–30 DAS. Light earthing-up around the plant base improves root aeration, anchors the branching habit of Blackgram Siddhi 88, and controls late-emerging weeds. Avoid deep hoeing to prevent damage to shallow lateral roots.
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Mulching and Intercrop Option: Apply 2–3 t/acre of straw mulch immediately after second weeding to conserve soil moisture, suppress weed resurgence, and moderate soil temperature. In kharif regions, Blackgram Siddhi 88 can be intercropped with sorghum or maize at 2:1 row ratio for enhanced land-use efficiency and additional intercultural operations through the companion crop.
🛡️ Pest & Disease Management
Proactive crop monitoring and integrated management ensure healthy crop development.
🐛 Insect Pest Management
- Helicoverpa armigera (Pod Borer): Larvae bore into flowers, pods, and developing seeds causing shedding and direct seed damage. Control: Spray Neem-based biopesticide Neemacin 0.03% (3 ml/L) or Emamecin benzoate 5% SG at 0.3 g/L at 30–35 DAS and repeat at 10-day intervals if infestation persists. Use pheromone traps at 10 traps/acre for monitoring and mass trapping.
- Empoasca kercredea (Leafhopper): Sucks sap from undersides of leaves causing yellowing, curling, and premature senescence. Control: Spray Imidacloprid 17.8% SL at 0.3 ml/L or Thiamethoxam 25% WG at 0.15 g/L. Deploy yellow sticky traps at 15/cm height to monitor adult populations.
- Amrasca biguttula biguttula (Jassid): Causes honing damage on leaves creating bronze discoloration and leaf curling, reducing photosynthetic area. Control: Spray Diazinon 60% EC at 0.8 ml/L or Acetamiprid 20% SP at 0.1 g/L. Conserve natural enemies such as Syrphid flies and Chrysopidae; avoid broad-spectrum insecticides during early vegetative stages.
🔬 Disease Control
- Colletotrichum truncatum (Anthracnose): Causes dark sunken lesions on pods, stems, and seeds; severely affects seed quality and germination. Control: Seed treatment with Thiram or Carbendazim at 2.5 g/kg seed. Field spray: Mancozeb 75% WP at 2.0 g/L or Copper oxychloride 50% WP at 3.0 g/L at 40 DAS and again at 55 DAS. Practice crop rotation with non-legume cereals for 2–3 seasons.
- Erysiphe cichoracearum (Powdery Mildew): White powdery fungal growth on leaves and pods, reducing photosynthetic capacity and seed fill. Control: Spray Wettable Sulfur 80% WP at 2.0 g/L or Sulfer dusting at 15 kg/acre. Remove and destroy severely infected plant debris post-harvest to reduce inoculum carry-over.
- Mungbean Yellow Mosaic Virus (MYMV) transmitted by Bemisia tabaci: Shows bright yellow mosaic patterns, leaf curling, and stunting. Control: Rigorous whitefly management with yellow sticky traps and systemic insecticide sprays (Imidacloprid 17.8% SL at 0.3 ml/L) at 15 DAS as preventive measure. Uproot and burn infected plants immediately. Rogue out symptomatic plants during early vegetative phase.
✂️ Harvesting & Produce Quality Guide
Harvesting at peak maturity ensures maximum commercial grade and long keeping quality.
⏱️ Harvesting Schedule & Timing
Harvest the entire crop at once when 75–80% of pods turn brown/black and the plant shows complete drying. Single-stage harvest at 70–80 DAS. After cutting, bundle plants and stack in a shaded, well-ventilated area for 5–7 days for pod drying and post-maturation before threshing.
⭐ Produce Quality Characteristics
Blackgram Siddhi 88 produces small, glossy black seeds with uniform size, dark seed coat, and good test weight (2.9–3.6 g/100 seeds). The seed exhibits high protein content (~24–26%), excellent cooking quality with soft texture, and clean appearance free from discoloration, shriveling, or insect damage. Grain uniformity and dark black colour are key market-preferred traits.
| Quality Parameter | Agronomic Standard | Farmer & Market Benefit |
|---|---|---|
| Harvest Stage | 70–80 Days after Sowing — whole crop harvest when 75–80% pods are mature and dried on plant | Ensures uniform seed maturity, optimal seed colour, and maximum seed filling quality |
| Harvest Maturity Signs | Pods turn dark brown to black, seeds rattle when shaken, plant canopy is completely dry and brown | Prevents over-maturity leading to pod shattering and seed loss; ensures clean, well-filled seeds |
| Shelf Life & Keeping Quality | When dried to 10–11% moisture and stored in well-sealed gunny bags or hermetic bags in cool, dry conditions, seeds retain viability and quality for 6–8 months | Minimises storage pest infestation and maintains seed germination for the next season; extends market availability window |
| Market Suitability | Table pulse market, wholesale mandis, pulse processing units, and direct farmer-to-trader sales | Uniform seed size, deep black colour, and clean appearance attract premium rates in domestic markets; suitable for both human consumption and seed multiplication |
⭐ Varietal Features — Blackgram Siddhi 88
Distinguishing characteristics that make this variety a top choice for Indian growers.
🌿 Core Variety Highlight
Blackgram Siddhi 88 is bred for compact plant architecture and early-maturing behaviour, delivering uniform crop stands and reliable field performance across diverse Indian agro-climatic zones including Kharif, Rabi, and summer seasons.
🌿 Produce Quality & Appearance
Produces small, round-to-oval black seeds with glossy seed coat, uniform size distribution, high test weight (2.9–3.6 g/100 seeds), excellent protein content, and superior cooking quality with quick softening and pleasant flavour.
🌿 Stress & Disease Tolerance
Demonstrates good field tolerance to Anthracnose and moderate resilience to Powdery Mildew and MYMV under integrated management. Exhibits reasonable drought tolerance suitable for rainfed and semi-arid environments common in central and western India.
🌿 Growth Habit & Vigor
Compact plant stature of 35–40 cm with prolific branching (8 branches per plant) provides strong canopy coverage, efficient resource use, and natural weed suppression. Branching habit aids in distributing pod load and reducing lodging risk.
🌿 Crop Duration & Earliness
Reaches 50% flowering within 45–50 days and attains physiological maturity at 70–80 days, enabling early market entry, flexible rotation with succeeding crops, and multiple cropping opportunities across Indian farming systems.
🌿 Market & Farmer Preference
Farmers prefer Blackgram Siddhi 88 for its uniform maturity, high seed cleanliness, attractive black colour, and dependable field performance under both irrigated and rainfed conditions. Traders and processors value the consistent seed size and grade, commanding steady demand in domestic pulse markets.
