Aim to get your plants onto the standing ground by the end of the month if at all possible. Once this is done, according to the experts and the wealthy this is the best time to take you holidays. Any plants not on the standing ground by now need to placed there as soon as possible. This space will allow you space to walk when you water and feed the plants. Take care with watering only give water to the roots if the plant really needs it, very often an overhead spray will perk the plants up.
Some growers use liquid feeds whilst others use powders.
Neither is right or wrong. What is important is that the food is available to the plant as easily as possible. More plants are spoilt by overfeeding at this time so go easy. Any basal growth that appears needs to be removed at ground level. Keep lateral growth to a manageable level.