Numerical simulation of the process of fruit tree growth research

When the load(x) and the girth of the trunk(y) always maintain the proper proportions, mathematical models available:

for transplanting seedling dry weeks, when a (> 0) as the young period the growth rate of dry fast growth stage dry weeks, b (> 0), c (> 0) for

the decline rate parameter of . The girth of the

trunk with the time changing law is expressed as:

Parsing model shows that sapling stage work weeks of year growth should be 6.0 cm; Orchard for 10 to 15 years, keep the length of the trunk girth growth in 1.6-2.5 cm each year, can make the orchard continuous output.