Study On The Application Of Precision Agriculture Technology In Soil Nutrient Management In Banana Garden

Precision agriculture (or precision farming) is one of the frontier fields in agriculture developed very rapidly in recent years. The technology is developed to adjust the crop and /or soil management practices more precisely based on the soil and crop conditions of each operation unit (site) in the field, to maximize the profit of agricultural input materials, such as fertilizer, herbicide pesticide, etc...and to prevent land resource and environment. This research acted banana as study object at first time, by applying the technology of precision agriculture, especially the technology of "3S" (Global Position System, Geographic Information System and Remote Sense) and these ways of grid sampling and ASI, this experiment tested, analyzed and evaluated the soil of this banana garden rapidly. The results were as follows:1.pH of banana garden soil was low in some sort,92.7% of pH of banana garden soil was under 5.5; Available Calcium of banana garden soil belonged to middle level; Therefore, when banana produced, we should use Calcium fertilizer; But, dosage of every experiment area was different, maximum dosage was 250 kg/hm2 and minimum dosage was 200 kg/hm2.2.Available Nitrogen of banana garden soil remained with middle level; the range of dosage of every experiment area was 700-800 kg/hm2; Available Potassium of banana garden soil was affluent somewhat and the range of dosage of every experiment area was 50-60 kg/hm2; The change scope of Potassium dosage of every experiment area was 1100-1500 kg/hm2.3.Available Magnesium of banana garden soil was short, 81.2% of Available Magnesium of banana garden soil was under 120 mg/L; As a result, when banana fertilization, we should use Magnesium fertilizer; But, dosage of every experiment area was dissimilar, maximum dosage was 160 kg/hm2 and minimum dosage was 150 kg/hm2; However, Available Sulfur of banana garden soil was abundant and the range of dosage of every experiment area was 10-30 kg/hm2.4.Available Iron and Manganese content of banana garden soil can meet the need of growth of banana; The range of Copper Zinc, Boron dosage of every experiment area was [0.5, 0.8], [1.5, 2.0], [1.0, 1.5] kg/hm2, respectively.