Whats is the reason of leaf burning?

There may be the following reason  for this . >There may be the attack of termites in roots zone . They feeds on roots and at upper leaf turn dry & die . >It is also much similer to Corn leaf blight ,A disease due to fungal attack .  > Side effect of Herbicides that had been used in crops , Their residual effect .

Mian Sajjad Ck my photo that is an example of Northern Leaf Blight and compare with your affected plants. Pls let me know your feedback after comparison.

this may be insect attack check your soil

it could be due to herbicide injury.

Fungus

This is also fugus on maiz like post pic...

کاشی اعوان فصل ہر پروپیکینازول کا سپرے کروائیں

Pencanazole bhi thek rahy ga

کاشی اعوان جی ڈائی فیناکونازول

شکریہ میرے پاس بہت ساری فنجی سائیڈ سپرے ہیں اس کو واٹر سٹریس بھی بہت ہے