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I need this tomorrow! :)

2007-01-30 13:34:28 · 4 answers · asked by Coolmax:) 1 in Science & Mathematics Botany

4 answers

Plants need minerals to grow. Essential minerals are essential for the plant to complete its life cycle. Most fertilizers contain nitrogen, potassium and phosphorous.

2007-01-30 14:16:38 · answer #1 · answered by ivorytowerboy 5 · 1 0

Essential minerals are essential for the plant to complete its life cycle. Most fertilizers contain nitrogen, potassium and phosphorous.

Double fertilization refers to a process in flowering plants during reproduction, in which two sperm cells fertilize two cells in the ovary. The pollen grain adheres to the stigma of the carpel (female reproductive structure) and grows a pollen tube that penetrates the ovum through a tiny pore called a micropyle. Two sperm cells are released into the ovary through this tube. One of the two sperm cells fertilizes the egg cell, forming a diploid zygote or embryo, also called the ovule. The other sperm cell fuses with two haploid polar nuclei in the center of the embryo sac. The resulting cell is triploid (3n). This triploid cell divides through mitosis and forms the endosperm, a nutrient-rich tissue inside the fruit. When seed develops without fertilization, the process is known as apomixis.

2007-02-02 02:21:57 · answer #2 · answered by babitha t 4 · 1 0

Plants absorb all the nutrients from soil.But over the period of time nutrient level in soil gets depleted .so to replenish soil again with inorganic nutrients we have to add fertilizers to soil
Fertilizers typically provide, in varying proportions, the three major plant nutrients (nitrogen, phosphorus, and potassium), the secondary plant nutrients (calcium, sulfur, magnesium), and sometimes trace elements (or micronutrients) with a role in plant nutrition: boron, chlorine, manganese, iron, zinc, copper and molybdenum.

2007-01-31 03:43:38 · answer #3 · answered by MSK 4 · 1 0

helps growth, by providing valuable nutrients

2007-02-01 05:52:31 · answer #4 · answered by Ioana M 2 · 1 0

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