Different crops are grown in different seasons as each crop has a time to grow.
Because of climatic or seasonal variations at different times of the year, the Indus Valley farmers plant different crops in different seasons of the year. For that reason they have classified these crops into rabi (winter) and kharif (summer) seasons.
Believe it or not, about 6 million, eight hundred crops are grown in Montana every year.
because different plants need to grow at different times of the year.
A crop of wheat will yield once per year. A field may be planted so that two crops per year can be grown.
That is called "crop rotation".
Some spices are harvested at different times of the year. However, often the plant you harvest the spice from grows all year round.
Corn is one of the major crops grown in the United States. US production is many times that of any other nation. On average, about 80 million acres of corn are raised every year in the US.
plant something different every year
It is when one species of crop is rotated with a different species of crop every year. For instance, a field that was planted with canola one year is planted with wheat another year. That same field may be sown into hay for a few years before being turned back to crop. This is so that the nutrients in the soil are not "mined" out of the soil to the point where crops cannot be grown anymore. Different crops have different nutrient needs than others. For instance, legume/oilseed crops like canola and peas fix nitrogen and put nitrogen back into the soil, whereas cereal crops like wheat or corn use it up.
Example is that much of the corn grown in the US is grown as the only crop grown on a piece of land year after year. There is no crop rotation with other crops, so the land becomes depleted of nutrients that corn uses, and more dependent on fertilization, more dense, and lacking of forms of life.
Beans are grown all year in different parts of the country.
Cropping Intensity is no. of crops grown in a year multiplied by 100. source : fundamentals of agriculture, author : Arun Katyayan