Handling cotton's biggest nutrient problem
Brad Haire The sandy soils of much of the Southeastern Cotton Belt typically pose a problem of low pH for growers to correct, but in recent years, some growers may be pushing pH too high, which can lead to potassium issues. Recent research shows no benefits to cotton yields between putting out all potash at cotton planting verses splitting it up between planting and sidedress. There's no magic bullet to pin down the potassium deficiency issue Southeast cotton growers face. The K-problem has been a moving target for several years, varying from field to field, within a...
Source: farmprogress.com