Kelly Robertson

Shorter Corn this Year?

Have you observed shorter corn this year? ISA Soy Envoy, Kelly Robertson, shares several factors that can lead to shorter-than-normal corn and how it impacts yield.

By |August 11, 2023|

Sufficient Level of Available Nutrients (SLAN) versus Build Maintain Fertility Programs

It can be argued that SLAN and Build/Maintain can be similar in some ways, both making an application of fertilizer to keep soil test levels where they are and feed the crop to be grown. However, SLAN is geared more towards achieving a fertility level where maximum yield can be obtained in that year where Build/Maintain is trying to keep the soil test levels from dropping.

By |March 16, 2023|

What is Cation Exchange Capacity (CEC)?

Using CEC to make fertility management decisions is a philosophy. There are many different philosophies that incorporate CEC into their recommendations. Many of these philosophies have some good science in them, some just enough to make them seem legit and some could be dangerous.

By |January 3, 2023|
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