Avocado Nitrogen And Potassium Model

Field Name:	Crop Year:
Area:	Full Bloom Date:

* Crops Information *	* Orchard Information *

Estimate 2012 Yield :	lb/acre	Orchard Tree Age* :
2011 Crop still on trees:	at 2012 Full Bloom	Distance between trees :	ft
Estimate 2011 Yield :	lb/acre	Distance between rows :	ft
2011 Crop Harvest :	2012	Canopy diameter :	ft

*** Fertilizer Application ***

Soil type of Orchard :

Fertilizer application method :

***Available N from Field ***

Acre feet of well water applied per year feet/acre. ** 0 feet/acre recommended for Unknow area 7+ years old orchard.

** 0 % over recommended water usage. Low leaching risk. Get water usage recommendations

Water Nitrate - Nitrogen (NO₃-N) concentration* ppm (mg/liter).
**If you don't know your water NO3-N level enter 0. To convert nitrate concentration to nitrate nitrogen concentration multiple by 0.23.

Last Sept. leaf total N level ** % of dry weight.**If you don't know leaf N level enter 2.2

*** Organic N ***

Manure::	Last year	tons/acre
	Two year prior	tons/acre

Compost:	Amount(tons/acre)
	% N in compost

Legume cover crop:

Other ground cover: tons/acre

*** Potassium Application ***

Potassium fertilizer type:

Last September leaf total K level** % of dry weight **if you don't know leaf K level enter 1.0

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This program provides recommendations only and is not intended to be used as the sole source of information for making N and K fertilization decisions. Local environmental conditions can have a profound effect on fertilizer demands. The California Avocado Commission, California State University, and the University of California are not responsible for the accuracy of this model.