Texas/New Mexico Stateline | Woodman9919 - 3/20/2017 17:51
I am asking if you put the water where it is needed (example next to the stalk) how much water does it need? The example I am thinking of is coulter car nitrogen vs the yDrop system. I have seen results in 10 to 30% less nitrogen needed by using the ydrops due to the nitrogen going straight to the roots vs the roots needing to reach for the nitrogen. I am thinking of the same simulation of rain fall to an application of water put right at the plants feet instead of the whole surface.
Corn needs 20-22 inches of water per acre throughout the growing season to maximize yields. 22" of water per acre would be 2500 TONS of water per acre. Placement within the row is not going to make any difference. The whole root mass is working to keep up with demand.
I would contend that limiting the moisture profile to only a small portion of the row would actually limit yields significantly, because it would not be able to draw in as much as the plant is demanding. It would be like trying to eat with a toothpick when you are hungry.
At the peak demand times it is using 1/3 of an inch of water per day, that would still be 35 tons of water every day.
You are comparing fertilizer where you are putting on very small amounts in comparison.
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Gallons of water per acre to equal an inch of rainfall
