There are some salt nutrients that you could you put on fields to stop crops from growing. One such nutrient is abscise acid which is found in salt and inhibit plant growth.
Irrigation.
Irrigation.
Irrigation.
The Olmec people used a system of raised fields for growing crops by constructing mounds of earth surrounded by canals or ditches. This helped to hold water for irrigation and drainage during the rainy season, allowing them to cultivate crops in the nutrient-rich soil of floodplains. The raised fields also provided protection against flooding and pests, promoting successful agriculture.
Fields were prepared for growing crops by plowing the soil to break it up and make it loose, removing weeds and debris, and adding nutrients or fertilizers to the soil to improve its fertility. Sometimes fields were also leveled to ensure proper drainage and irrigation.
Cash crops are ones that return money within a short time for the least time and labor.He planted cash crops in most fields, and select longer growing crops in other fields.
The reason for the 3 field system is so that 2 of the fields can grow crops and the 3rd of the fields wouldn't have anything growing but they would, put animals there to fertiliser the crops
Rape seed, for making vegetable oil.
used up all the nutrients in the soil
In China the work is just like growing their crops working on the fields/farms,.
Did humans wait for glaciers to spread before growing crops?
Crows can eat crops in the fields, that farmers are growing.