What is the most important plant in your country?

Dear teachers,

Check my essay below, please. Check for the grammar and I welcome your suggestions.

Plants can be considered the support of life on the Earth. Plants produce the oxygen, which is needed for every living thing on the earth.
In my country India, Rice plant is the most important plant because India's weather and soil supports to grow rice plants more and easily. Most of the Indian's grow rice plants in their lands. More than fifty percentage of the farmers grow rice plants here. Rice plants requires more water and there should be water all the time in the land to grow rice plants. More than sixty percentage of the people in the world consumes rice. Every year rice from India will be exported to other countries. Indian farmers mostly depending on rice plants. If they get more rice from the rice plants, they are the happiest people in the world. Once they grow rice plants, they need to collect rice seeds and take it to rice millers and have to remove the outer portion of the rice. After removing it looks brown color and brown color rice is very good for some diseases. People having brown rice are more healthier than others. Farmers need to take that brown rice to the some other miller and have to clean it. After cleaning the brown rice they get white rice that can be stored for a longer time and will be exported as well. The more rice they get from their land the more the farmers are happy.

Thank you so much.