I don't have much experience but this might help.
"Amino acid chelates also have a dramatic effect on calcium uptake by roots, especially chelates utilizing the amino acids glutamic acid and glycine. In soil and in hydroponics, calcium tends to react with phosphates and sulfates, precipitating out of solution as lime scale. Lime scale makes calcium unavailable to the plant.
Over time lime scale can clog up pumps, drip tapes and irrigation lines—a constant concern of hydroponic growers. Amino acid chelates are amino acid shells formed around the calcium ions like a claw, preventing calcium from reacting with other minerals in the water to form lime scale.
At the same time, glutamic acid and glycine amino acids stimulate root cells to open up calcium ion channels, allowing plants to take up calcium ions thousands to millions of times faster than simple osmosis.
The increased availability of calcium provided by amino acid chelated calcium has secondary benefits. For instance, a plant with a strong vascular system takes up water and nutrients more efficiently, increasing the Brix or sugar content of the plant."
Also to fix ph related problems in soil you need to promote microbial life in your soil, bacterial dominant compost to increase ph.
Brew some tea with good compost, worm castings, liquid seaweed, maybe some molasses or alfalfa.
I also noticed your soil looks very compacted, you can use some cover crop or
yucca extracts to loosen it up.