Assam

மாநில மேலோட்டம்

Assam is the largest of the eight North-Eastern states by area (78,438 km²) and population, and the agricultural-economic anchor of the region. The state is shaped by the mighty Brahmaputra river — among the world's largest by discharge, with annual monsoon floods inundating large parts of the valley but also depositing nutrient-rich silt. Cultivation occupies 41% of the state, with paddy covering ~70% of gross cropped area across three distinct rice seasons: sali (winter, main rainfed crop), ahu (autumn, broadcast), and boro (summer, irrigated, increasingly important).

Assam is #1 in India for tea production (~52% of national output and 12% of world output) — Assam tea (Camellia assamica) was discovered in the wild by Robert Bruce in 1823 and has been cultivated commercially since the 1830s; the Guwahati CTC tea auction is among Asia's largest. The state has 6 GI tags including Assam Tea, Joha Rice (a celebrated aromatic short-grain), Tezpur Litchi, Karbi Anglong Ginger, Kaji Nemu (Assam lemon), and Bhut Jolokia (ghost-pepper, formerly world's hottest). Assam is the leading state for Muga silk (Antheraea assamensis — golden silk, GI, only in Assam) cultivated by tribal communities. The state also has India's largest mustard belt in the NE.

மண் வகைகள்

Assam's soils are mostly alluvial — Brahmaputra Valley (90% of cultivable area) has rich younger alluvium replenished annually by floods, while Barak Valley has older alluvium with more clay. Acidic profiles dominate (pH 4.5–6.5) — Assam is among the most acidic-soil states, requiring widespread liming. Tea-garden soils (Brahmaputra Valley uplands) are deep, acidic, well-drained, ferralitic — perfect for Camellia assamica tea cultivation. Char-island soils (mid-river sandbars) are sandy and unstable, supporting cucurbits and mustard between floods. Hill-district soils (Karbi Anglong, Dima Hasao) are red-yellow.

நீர் வளம்

Assam receives 2200 mm rainfall annually — among the highest in India after Meghalaya and West Coast. Three-quarters falls in SW monsoon, with severe flooding of the Brahmaputra Valley nearly every year (over 35% of state area in some years). Crop loss to floods averages ₹2,000 cr/year. Sali rice (winter, main crop, transplanted June–July) covers most cultivated area; Ahu (autumn, broadcast March–April) and Boro (summer, irrigated, in flooded char/beel land) are minor seasons. Irrigation is only 14% — heavily rainfed despite the Brahmaputra running through.

பிகா மாற்றம்

In Assam, one bigha ≈ 0.333 acres (14,400 sq ft). 3 bigha = 1 acre. See the area unit converter for instant conversions to acres, hectares, guntha, gaj and katha.

Cropping calendar

Assam's calendar reflects its monsoon-flood regime and three rice seasons. Sali (winter) paddy is the main crop — transplanted June-July, harvested November-December. Ahu (autumn) paddy is broadcast direct-seeded March-April and harvested July-August (a low-investment crop on uplands). Boro (summer) paddy is transplanted December-January in waterlogged char and beel land, harvested April-May — irrigation-dependent. Mustard is sown October-November, harvested February. Jute is sown April-May, harvested July-August (Assam is India's #2 jute producer after West Bengal). Tea (Camellia assamica) is plucked from March (first flush) through November (autumn flush) — Assam tea peaks May-June ('second flush', the most premium).

MSP procurement & mandi network

Assam's MSP procurement is modest — paddy ~5 lakh tonnes/year, very limited wheat/mustard. The state pays a ₹120/q paddy bonus under Mukhyamantri Krishi Sa-Sajuli Yojana. The 2025-26 MSP for paddy is ₹2,369/q. Tea auction: the Guwahati Tea Auction Centre is Asia's largest CTC tea auction, handling 150+ million kg annually. Assam's signature scheme Orunodoi transfers ₹1,250/month to economically weak women — over 24 lakh beneficiaries, with 70% women — and indirectly stabilises rural agricultural household consumption. Mandi infrastructure: 250+ regulated markets under ASAMB.

District-wise crop concentrations

District concentrations: paddy (top — Nagaon, Sonitpur, Dhubri, Goalpara, Barpeta — covering most of Brahmaputra Valley); tea (top — Dibrugarh, Tinsukia, Sivasagar, Jorhat, Sonitpur — upper Assam tea belt; Barak Valley tea in Cachar, Karimganj); mustard (top — Nagaon, Sonitpur, Lakhimpur, Dhemaji); jute (top — Nalbari, Barpeta, Goalpara); ginger (top — Karbi Anglong, Dima Hasao — hill districts); litchi (top — Sonitpur — Tezpur litchi GI); muga silk (top — Sualkuchi, Sonitpur — Antheraea assamensis, only in Assam, GI); bhut jolokia (top — Tezpur-Sonitpur area — ghost-pepper GI); aromatic Joha rice (top — Nagaon, Sonitpur, Lakhimpur — small-grain aromatic GI).

Climate-resilience & soil-test interpretation

Assam's annual flood-and-erosion challenge is unparalleled — the Brahmaputra inundates 35%+ of the state's area in heavy monsoon years (2004, 2012, 2017, 2020, 2022). Char-island (sandbar) cultivation supports ~25 lakh marginal families on shifting riverine land. Bank erosion has reduced Assam's land area by over 4,000 sq km since 1950. Adaptation pathways: flood-tolerant rice varieties Swarna-Sub1, Bahadur Sub1, Ranjit Sub1, Jalashree (state IRRI-collaboration); embankment fortification under the Brahmaputra Board; integrated farming with rice-fish-duck (a longstanding Assamese tradition); and the state's Mukhyamantri Krishi Sa-Sajuli Yojana subsidising farm-implement adoption. Tea industry climate-stress — temperature rise of 1.3°C since 1980 has shifted first-flush dates earlier by 2 weeks, with implications for flavour quality (Tea Board of India is monitoring).

உள்ளூர் மொழி

Assamese in the Assamese script (a Brahmic abugida very similar to Bengali but with distinct ro and wo characters) is the sole official language of most of the state; Bengali is co-official in the Barak Valley districts. Bodo (in Devanagari, 8th-Schedule recognised) is the official language of the Bodoland Territorial Region. Land records on Dharitree are in Assamese.