I have a field out of town, where I can grow vegetables, however it is too far away for me to water daily, I can do every 3 days max.
What are some good strategies to protect tomatoes from the direct sun and evaporation?
Would a plastic, semi transparent plastic cover help? Or should I rather only cover them from one side, so they can still get direct sun light the rest of the day?
What about mixing some vermiculite into the earth to hold moisture for longer? Or maybe a plastic cover around the plant, to keep the earth moist? Maybe one of these cone things?
My plants are located here: https://www.google.com/maps?q=orth+an+der+donau&gs_lcp=CgZwc3ktYWIQAzICCAAyAggAMgIIADICCCYyBggAEBYQHjIGCAAQFhAeMgYIABAWEB4yBggAEBYQHjIGCAAQFhAeMgYIABAWEB46BAghEBVQ3lxY3lxg7l9oAHAAeACAAYcBiAHAA5IBAzAuNJgBAKABAaoBB2d3cy13aXo&uact=5&um=1&ie=UTF-8&sa=X&ved=2ahUKEwj4mrPdvoTpAhUPsKQKHU5MDQkQ_AUoAXoECHQQAw
Right now its fairly dry, raining about once a week, RH mostly at about 30%-40%. There are times when it rains more frequently than that. Right now its on avg. about 20°C, but it will get to about 30 during the summer. I can water the plants every 3 days.