How much seed, what spacing and when to water cumin at sowing?

ICAR-NRCSS guidance gives cumin 10 to 12 kg seed per hectare, in rows 25 cm apart, sown no deeper than 1.5 cm. Sow in the first week of November in Gujarat and 15 to 30 November in Rajasthan. Irrigate lightly just after sowing, then again 8 to 10 days after sowing.

Updated 2026-11-09

See also: Cumin (Jeera) guide and Immunity Cumin Special.

Cumin gives you few chances to correct a bad start. The field, the seed, the sowing depth and the first two waterings are all decided in November, and several wilt risks are set at this stage. We have worked with farmers since 2006, and patchy fields and dying plants are what cumin growers in Gujarat and Rajasthan bring to us. Our cumin crop guide covers the whole season. This page covers only sowing day to the second irrigation.

Seed rate, spacing and sowing date

Figures differ by institute, region and sowing method.

Sources: ICAR-NRCSS, SDAU Jagudan and TNAU. The Spices Board also gives 10 to 12 kg per hectare, 25 cm by 10 cm and a 1.5 cm depth limit.

Seed. 10 to 12 kg per hectare is about 4 to 5 kg per acre. Do not add extra seed just for safety. The Jagudan authors call cumin sensitive to plant density.

Depth. NRCSS and the Spices Board both say not deeper than 1.5 cm.

Spacing. At NRCSS Ajmer, a trial with variety RZ-209 tested rows at 20, 25 and 30 cm, and 25 cm by 10 cm gave the best seed yield and return. At Jagudan, on loamy sand, 30 cm rows gave more than 15 cm rows or broadcasting. Rows of 25 to 30 cm are the range to work in. Your local agricultural university or KVK can say which suits your soil.

Date. In the three-season Jagudan trial, cumin sown on 5 November gave 497 kg per hectare, and cumin sown on 20 November gave 344 kg. The authors link later sowing to a shorter growing period. That is one trial on one soil, and your result will differ. But if your field is ready, do not delay without a reason. A review of cumin production also says the date should keep flowering away from humid weather.

Seed treatment before sowing

Use seed from a field that had no wilt. TNAU says seed should come only from disease-free plots.

• Biological: the review gives Trichoderma culture at 10 g per kg of seed.
• Chemical: seed dressings are also listed in these guides. Follow the current recommendation of your state agricultural university or KVK, and check the label before mixing any chemical with a living culture.
• Soaking: the same review says priming the seed for 8 hours and drying it in shade improves germination. TNAU also says soaked seed should be dried in shade before broadcasting.

First irrigation: light, and straight after sowing

ICAR-NRCSS and TNAU both say the first irrigation goes on just after sowing, and TNAU says it should be light. The seed sits only about 1.5 cm deep, so a heavy flow can move it. The review warns against heavy irrigation at this stage for exactly this reason.

• Make small beds. TNAU describes beds of 4 m by 3 m with irrigation channels.
• Level each bed first, so water does not run to one corner.
• Let water enter slowly, and cut it off before the bed floods.
• Do not let water stand on the field.

Seed heaped at the end of a bed, or bare strips at the entry point, can mean the flow was too strong.

Second irrigation: 8 to 10 days after sowing

NRCSS says the second irrigation should be given during germination, 8 to 10 days after sowing. TNAU gives 6 to 10 days after the first irrigation. Soil and weather decide where you fall in that range. The review notes that seedlings often show after 10 to 12 days, typically after this second watering, so do not panic and flood the field on day 7.

If a crust forms

A crust is a hard, cement-like skin on the soil surface. The crop guides we read for cumin do not set a rule for it, so this advice comes from University of Minnesota Extension, written for vegetable crops. It says crust is most likely after heavy rain followed by hot, dry weather, and in clay, silt and loam soils. We would treat a heavy irrigation the same way. If seedlings are about to come up, it suggests irrigating to soften the surface.

For cumin, that means giving the second irrigation lightly and on time. Take care not to cut young seedlings with a tool while they are coming through. The review notes that later weedings also break crust. The first weeding and hoeing is about 30 to 40 days after sowing, according to TNAU. More organic matter in the soil can help prevent crusting, which is one more reason to build soil health before the next season.

After the second irrigation, do not water by habit. NRCSS gives 4 to 6 irrigations in all, 20 to 25 days apart, depending on soil. In one NRCSS Ajmer trial, four irrigations at 18-day gaps gave more seed than six at 12-day gaps. Cumin is highly sensitive to water stagnation.

Sowing mistakes that can show up later as wilt

Wilt is caused by a soil-borne fungus, Fusarium oxysporum f. sp. cumini. Tips and leaves droop, and young plants are hit hardest. The Spices Board says efficient control is not possible with chemicals, so what you do before and at sowing matters.

• Same field again. NRCSS and the Spices Board advise a three-year rotation. The Spices Board reports less wilt after non-host crops such as mustard and pearl millet. A Junagadh study found one kharif crop of sorghum or maize did not reduce wilt on its own.
• Saving seed from a wilted patch. TNAU, NRCSS and the Spices Board all ask for healthy, disease-free seed.
• Ignoring the variety. The Spices Board lists RZ-223 and GC-4 as tolerant to Fusarium wilt. Tolerant does not mean immune. Check what is advised for your region.
• Broadcasting. The Jagudan authors warn it may lead to severe disease and pest attack.
• Water standing in low spots. The review says stagnation and excess moisture are harmful. Drain or level these patches.
• Ignoring nematodes. The Spices Board says wilt is worse when root-knot nematode attacks before the wilt fungus.

Soil work can also help. In a two-season Jagudan trial, neem cake at 2 t per hectare before sowing had 13.54% wilt, against 38.51% in untreated plots. In a second Jagudan trial, farmyard manure enriched with Trichoderma harzianum had 11.46% against 39.41%. In the Junagadh study, covering the soil with thin plastic for 15 days in summer cut wilt to 26.27% from 44.90%. These results may not repeat in your field, and solarisation is a job for next summer.

Where Immunity fits

Send us your sowing date, soil type, variety, irrigation method and a photo of the field on +91 99787 91167 (call or WhatsApp), and we will tell you what to check first.

Sources

• Cultivation practices: cumin, Spices Board India
• Cultivation of dollar earning cumin crop for higher income, ICAR-National Research Centre on Seed Spices authors, Acta Scientific Agriculture
• Effect of sowing time and spacing on growth, yield and economics of cumin, SDAU Jagudan, International Journal of Seed Spices
• HORT 282 Lecture 06: Cumin, Tamil Nadu Agricultural University
• Cumin: a seed spice crop with adopted production technology in cumin cultivated regions, IntechOpen
• Growth and yield of cumin as influenced by irrigation and nutrient levels with varying crop geometry, NRCSS Ajmer, Indian Journal of Horticulture
• Effect of irrigation techniques and planting methods on yield and water productivity of cumin, NRCSS Ajmer, International Journal of Seed Spices
• Integrated management of wilt of cumin, Junagadh, Journal of Spices and Aromatic Crops
• Field evaluation of organic amendments for management of cumin wilt, SDAU Jagudan, International Journal of Seed Spices
• Efficacy of bio-control agents against Fusarium oxysporum f. sp. cumini causing wilt in cumin, SDAU Jagudan, International Journal of Seed Spices
• Sustainable management of wilt and root rot of cumin under field conditions, SDAU Jagudan, International Journal of Seed Spices
• Managing soil crusting, University of Minnesota Extension

By Gafar Laiya, founder of Gujarat Bio Organics, working with farmers since 2006. Results differ from farm to farm with soil, weather, crop and management. Farmer experiences on this site are their own reports, not a promise of results.