Plants dying, outdoor , never had this problem

second time grower , growing outdoor in middle eastern weather . specifically Iraq. heat comes to around 45C .

But iv never had this problem before .

perhaps im lacking nutrients .

Im posting pics before and after.

iv had 6 plants dying on me this week. and these are 3 left i think they are dying aswell.

Please help before they die.

The leafy one is loweryder #2 and the other one is a sativa , super silver haze.

the last pic that plant seems ok,as far as the other ones looks like nute burn to me but im no pro,allways check you soil and water ph,1/4 to 1/2 strenth nutes and good ph is the most important this to make anything grow good luck peace and grow on

I*m going to say you have ph issues.Dolomite lime would do the trick,dont know about getting it in bagdad..peace