A farmer.
Substance farmer
The amount of money a farmer earns in a year depends on several factors: the size of the farm, what the farmer is raising, how well the crops do (if he is raising crops), etc. A farmer could actually lose money in some years if he is growing crops and they don't do well.
One result of improved agricultural practices is a higher yield for crops. Higher yields bring more produce to market and might also give the farmer a profit.
to grow money crops
cropping
crop rotation
Basic agricultural practice will be designed to produce the best possible yield, so No!
Because the pests damage the farmer's crops, causing him to lose yield and not make as much money.
Low yields usually refer to crops. It means that the yield of the crop was lower than predicted by the seed company or farmer.
A local farmer can make anywhere from 50,000 a year to hundreds of thousands of dollars a year. The salary depends on their crop yield and market price for their crops.
It all depends on what kind of year it is. If the prices of crops or livestock are high and his crops or llivestock is healthy, then the farmer could be very rich. If the livestock and crops are unheathy and the markey is bad, then the farm could go bankrupt.
It depends on the crops in the rotation and the farmer's yield goals. For example, an organic producer who is most interested in crop quality instead of yield will not use up all the nutrients in the soil. If the soil is a little low, he can add some organic manure or compost. But a Midwest US corn and soybean grower with high yield goals will always have to keep adding some nutrients.
Low yields usually refer to crops. It means that the yield of the crop was lower than predicted by the seed company or farmer.
high yield products from your local nursery has a specific product for this
Probably tobacco and sugar cane.
scientific research on increasing food supply ;)