Semi dwarf eureka lemon tree stayed in pot for about 1.5 years and then went into ground in Apr '23. Since then its been slowly losing leaves and recently had a larger leaf drop. I am watering it twice a week by hand and I water it to the point where I see that water takes about a second to seep through. I topped it off with a mix of citrus soil and compost, added a fertilizer stick (its a 6" spear tipped stick that said it was food for cirtrus trees)
Other things I see (photo attached) - two root branches have broken off.
1. am I watering too much or too little? After 3 days, when I scrape away the top one inch, I can rub the dirt within my fingers and it feels just the slightest bit moist
2. what do I do with the branches that have lost leaves. keep them or prune them
thanks in advance !