ROCKY PLANETS (Mercury-Venus-Earth-Mars-Pluto). The rocky planets are mostly made up of rock and metal. These planets are very heavy and move slowly. They also do not have rings and very few moons.GAS PLANETS (Jupiter-Saturn-Uranus-Neptune). The gas planets are mostly made up of gases (hydrogen and helium).he rocky planets are mostly made up of rock and metal. These planets are very heavy and move slowly. They also do not have rings and very few moons. GAS PLANETS (Jupiter-Saturn-Uranus-Neptune). The gas planets are mostly made up of gases (hydrogen and helium).
Importance of Phosphorus to Plants. Phosphorus is a component of the complex nucleic acid structure of plants, which regulates protein synthesis. Phosphorus is, therefore, important in cell division and development of new tissue. Phosphorus is also associated with complex energy transformations in the plant. Adding phosphorus to soil low in available phosphorus promotes root growth and winter hardiness, stimulates tillering, and often hastens maturity.
Phosphorus supports the transfer of energy in plants, which is a different role from other plant nutrients, such as nitrogen. Nitrogen is part of the chlorophyll molecule and is needed for vegetative growth, but phosphorus promotes root growth, flowering and setting seed.High levels of phosphorus occur in seeds and fruit, and plants low in phosphorus have a small fruit set.Other signs of phosphorus deficiency include delayed maturity and reduced growth. Deficient plants may show purple coloring in the older leaves.itrogen is part of the chlorophyll molecule and is needed for vegetative growth, but phosphorus promotes root growth, flowering and setting seed. High levels of phosphorus occur in seeds and fruit, and plants low in phosphorus have a small fruit set.