MACRO ELEMENTSContains macro nutrients necessary nutrients plants in large quantities. However, it does not mean that given an infinite amount. There is a certain threshold of tolerable crop. Exceeds the limit, the plant can continue poisoned to death.
TYPES OF ELEMENTS OF MACROa. Nitrogen (N)
Needed to compose 1-4% dry matter (the hard part) crops, such as stems, bark, and seeds.
Taken from the soil in the form of nitrate (NO3-) or ammonium (NH4 +).
Useful
in the formation of cells, tissues, and organs of plants; as building
blocks of protein, chlorophyll synthetic materials, and also
berperandalam part of the process of growth and the establishment of
production plants, such as fruits, leaves and tubers.
Symptoms
of deficiency: nitrogen-deficient plants recognizable from the bottom
of the leaf, the leaf chlorophyll deficiency menguningkarena, dry up and
fall off. The bones in the lower leaf surface easily looked pale. Plant growth is slow, stunted and weak. Flower and seed production low.
Symptoms of excess: too green leaf color, lush plants with leaves. A long process of fertilization. Adenium will be succulent as they contain a lot of water. This causes vulnerable to attack of fungi and diseases, and easy to collapse. Flower production decreases.
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