Walnut

Water

Rain falls about 10 irrigations (5 cm each) short in a normal year, so it's risky without water.

Needs about 1,400 mm of water here in its growing months. Rain gives about 920 mm it can use in a normal year, and 640 mm in a dry year.

Temperature

Grows best at 15–30 °C on average, and survives 7–40 °C.

Here, in its growing months (day / night):

• Jun 37 °C / 26 °C (outside its best range)
• Jul 36 °C / 26 °C (outside its best range)
• Aug 35 °C / 25 °C
• Sep 34 °C / 25 °C
• Oct 32 °C / 25 °C
• Nov 30 °C / 24 °C
• Dec 29 °C / 23 °C
• Jan 29 °C / 22 °C
• Feb 30 °C / 23 °C
• Mar 32 °C / 24 °C
• Apr 34 °C / 26 °C (outside its best range)
• May 37 °C / 27 °C (outside its best range)
• Jun 37 °C / 26 °C (outside its best range)

It needs a cold winter to flower: a coldest month averaging 12 °C or less. Here the coldest month averages 25 °C.

Soil

Soil for Walnut: 8 out of 10 (good).

Not in the score: organic carbon, sulphur and boron.

• The pH here suits it.
• Most fields here are short of nitrogen.

Likes pH 5.5–6.5.

Money

Yield: about 14 quintals an acre, the typical figure across India (no figures for your state).

A new planting gives its first real harvest after about 6 years. The money here is for plants already bearing.

Rain gives it too little of the water it needs, so there's no income figure on rain alone: grow it only with irrigation.

No mandi or support price for this crop yet.