Turmeric is a tropical herb and is grown in both tropics and subtropics
Turmeric will grow luxuriantly in shade if not too dense, but it produces larger and better rhizomes in the open ground exposed to the sun.
Turmeric require humid climate.Turmeric can be grown in diverse tropical conditions from sea level to 1500 m in the hills
* Temperature should be in the range of 20 to 30oC, Rainfall of 1500 to 2250 mm per annually.Soils for Turmeric cultivation should be rich and friable. Soils with a little higher sand content (Loams and sandy loams) are well suited.
* It is grown in different types of soils from light black, sandy loam and red soils to clay loams.
* It grows on light black, ashy loam and red soils to stiff loams in irrigated and rainfed areas.
* It thrives well in a well-drained sandy loam soil rich in humus content or clayey-loam soil.
* The crop cannot stand water logging or alkalinity. Gravelly, stony and heavy clay soils are unsuitable for the development of rhizomes.In Andhra Pradesh Turmeric cultivation is largely confined to five Agro Climatic zones, which are as follows
1. Duggirala Zone (Krishan and Guntur Districts)
2. Cuddapah zone (Cuddapah and Kurnool districs)
3. Nizamabad zone (Nizamabad and Karimnagar districts)
4. Godavari Zone (East and West Godavari districts)
5. Agency zone(Srikakulam and Visakhapatnam districts)
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