Wednesday, February 3, 2010

Week 6: Water

Despite the large irrigation last week, the top soil is drying out rapidly. Yes, I know I should measure water at more than one depth. But I also know that the clay subsoil is wet (I dug a hole to 60 cm before planting). The couple of weeks prior to flowering is the key time for the corn to pick up some of the deep water and nitrate. A bit of mild water stress will not worry the crop too much at this stage.

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