Is it okay to fertilize all plants with 13-13-13 in Spring?… by Charles
I am planning on buying a bunch of it to put down on the lawn, so will this be good for all plants and perennials as well as opposed to 10-10-10? (not much difference is it?)
Best Answer:
It looks to me like 13-13-13 is more for fruit trees and 12-12-12 is for lawns and gardens.
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http://www.simplot.com/agricultural/plant/comp_fert121212.cfm
Complete Fertilizer 12-12-12
Product Type: Dry
This balanced nutrition, homogenous pellet fertilizer also offers 300 lbs. of sulfur per ton. Triple 12 with its potash in the sulfate form, and crop versatality, has long been a favorite of California agriculture.
***************************************** ………….Home Gardening
http://msucares.com/lawn/garden/tips/02/020211.html
………Fertilizing Fruit Trees
Garden Tips Newsletter - February 11, 2002
February is the time to fertilize your fruit trees. There are different rates depending on the age and type of the fruit tree.
For apple and pear trees:
1st year
1 pound complete fertilizer + 1/4 pound of ammonium nitrate
2nd year
2 pounds complete fertilizer + 1/2 pound of ammonium nitrate
3rd year
3 pounds complete fertilizer + 3/4 pound of ammonium nitrate
4th year
4 pounds complete fertilizer + 1 pound of ammonium nitrate
5th year
5 pounds complete fertilizer + 1 1/2 pounds of ammonium nitrate
After apple and pear trees reach bearing age (over 4 to 5 years of age), apply only a complete fertilizer (such as 13-13-13). Usually 2 to 3 pounds of fertilizer — per inch of diameter of the tree measured just above the soil line — are adequate.
For peaches, nectarines and plums:
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