1. Mattie Crownover

2.  Is it cost effective  Is it environmentally responsible

3.  Little research has been done  Small farms  Crops are cared for and harvested by hand

4. Harvest method (%) Mechanically Roots, tubers, & bulb Carrot 2 98 Potato 2 98 Onions 98 2 Fruiting Vegetables Peppers - bell & chili 80 20 Tomato 100 0 Melon/vine crops 100 0 Berries 60 40 Leafy veggies and greens Lettuce 100 2 Spinach 2 98

5.  High per acre crop values  Need for greater yield  Lack of help

6.  Increases yield  Improves product quality  Efficiency of crop chemical use  Conserve energy  Product Efficiency

7.  Site-Specific Management  Postharvest Process Management

8. Present technology is in the mass flow or mass accumulation categories.  Used where the crop harvested is conveyed on a belt or chain. Load sensors are placed on the idler wheels supporting the belt. Continues weight sampling is combined with GPS.  Load cells are under a hopper or wagon monitoring the weight of the crop. Combining weight changes in the hopper per unit times with the GPS time and position.

9. Handheld GPS receivers & Hand-Trak  Not as accurate, but offer a means for the grower  Improvements in progress

10.  Citrus crops in Florida  Working on keeping water and nutrients  in the root zone.  Commercial Blueberry fields  Real-time Slope mapping  Viticulture  Remote sensing from satellite and airborne platforms provides images depicting vineyard conditions.

11.  Chlorophyll Meter  Dualex Measures polyphenic compounds that accumulate in the epidermis of leaves under N stress.