Implement frame mounted product meters

A product distribution system for an air seeder, the system comprising:

• a mixed product container mounted on an implement frame of the air seeder;
• a first primary meter operative to meter a first product from a first product tank into the mixed product container;
• a second primary meter operative to meter a second product from a second product tank into the mixed product container;
• a plurality of container meters, each container meter operative to meter a mixed product from the mixed product container into a corresponding delivery conduit at a selected mixed dispensing rate such that the mixed product is dispensed from the mixed product container at a total mixed dispensing rate;
• a meter control operative to control a first dispensing rate of the first primary meter, a second dispensing rate of the second primary meter, and the total mixed dispensing rate;
• wherein the meter control is operative to substantially simultaneously start the first and second primary meters and operative to substantially simultaneously stop the first and second primary meters to maintain a desired proportion of first and second products, and to maintain a level of mixed product in the mixed product container above a minimum level.

A method of distributing agricultural products in an air seeder, the method comprising:

• substantially simultaneously metering a first product at a first dispensing rate from a first product tank into a mixed product container mounted on an implement frame of the air seeder and metering a second product at a second dispensing rate from a second product tank into the mixed product container;
• metering a mixed product at a total mixed dispensing rate from the mixed product container into a plurality of delivery conduits;
• substantially simultaneously starting and stopping metering the first and second products to maintain a desired proportion of first and second products and to
• maintain a level of mixed product in the mixed product container above a minimum level.