Walnut cultural practice: establishment, spacing, irrigation and nutrition
Establishment decisions lock in the yield ceiling for forty years. In detail: the soil specifications, rootstock choice by problem, lateral bearing, why Chandler is protandrous and what that means for the pollinizer, the rule of 112 kg per hectare for each 1% of light intercepted, irrigation by stem water potential, the nitrogen and potassium budgets, and the three findings that overturn common practice.
