I heard late sown wheat gets hit by heat at grain filling. How do I use the temperature forecast and timing to avoid this?
3 जवाब
The main protection from terminal heat is to sow wheat on time so grain filling finishes before the March heat arrives, and then use the temperature forecast to manage irrigation if a heat spike is coming. Terminal heat hits late sown wheat because the crop is still filling grain when temperatures rise sharply in March, which shrivels the grain. The first and biggest step is timely sowing within the recommended window for your area. If you must sow late, choose a heat tolerant short duration variety recommended by your KVK. During grain filling, watch the temperature forecast, and if a sudden heat spike is expected, give a light irrigation before it, because moist soil and a watered crop stay cooler and lose less to the heat. Some farmers spray recommended potassium at grain filling to help the crop cope, but check with your KVK first. The 7 day forecast on the Mausam app and your agromet advisory will flag the heat spike so you can irrigate ahead of it rather than after the damage.
Timely sowing is the real fix. My late field always gets lighter grain when March heat comes early.
I gave a light irrigation before a March heat spike one year and the grain stayed plumper than my neighbour's dry field.