Both sugar and salt are needed for plant growth.
But first a distinction needs to be made between what is meant by "sugar" and "salt". In the home context salt refers to Sodium Chloride (NaCl) or normal table salt; refined and granulated sugar is normally sucrose (a Disaccharide) which is a carbohydrate.
In Biological context:
The results:
Salt
The elements in normal table salt (NaCl - Sodium Chloride) are both used by the plant in its metabolic process, but in very small amounts - normally measured in parts per million (ppm) of concentration. Adding table salt to the soil upsets the osmotic potential of the soil water (as well as the pH)- this prevents water from being drawn into the plant so most plants will wilt and die - even at relatively low levels.
Certain plants are adapted to living in saline soils and have specific mechanisms which enable them to extract water and process high levels of salt. These plants are normally termed halophytes.
Sugar
Sugar can in fact have short term benefits to plant growth, however the long term effects can prove fatal. Accumulation of sugar in the soil provides the ideal breeding environment for bacteria and fungi, some of which can invade and attack the plant.
It's best not to experiment with either on plants you want to keep. Salt added to the ground will render it useless to almost all plants.
If you want to experiment do it with plants in a pot so as not to contaminate your ground.
It makes the plant grow well because water is better and healthier than sugar water. If we were a plant we would not drink sugar water we will drink water. For some plants they drink sugar water and some drink water.
Plants will grow better with sugar water. Salt water will kill a plant.
Water
BOTH!Gatorade and soda have sugar in them and plants do need sugar to order to grow...AND SUNLIGHT
Red Light makes a plant grow better.
Yes, it can make plants grow faster because in photosynthesis, the plants turn the sunlight Into sugar which makes the plant grow,
Water, plant food, fertilizer, rich soil and sunlight. sugar water but to much can hurt the flowers but can help the soil decompose
Without water, the plant will die. Miricle grow increases the growing proccess
A plant gets its energy from sugar that it makes. The roots get water and vitamins/minerals from the soil and the leaves convert carbon dioxide from the air and sunlight into sugar that feeds the plant.
more sunlight because sunlight is the main source
water
it is sugar water