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Cattle Boards
Grasses, Pastures & Hay
fertilizing a small pasture
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<blockquote data-quote="Mark Reynolds" data-source="post: 1806972" data-attributes="member: 43196"><p>look at what [USER=14175]@M.Magis[/USER] posted in this thread. Take note that they said AVAILABILITY io nutrients/fertilizer TO THE PLANT/GRASS. What happens is that when the pH of a soil is low. nutrients within the soil (they ARE there) start getting 'locked up' within the soil itself and the plant can no longer use them. Adding fertilizer in this case does absolutely no good at all. Adding lime to correct the pH can end up solving nutrient deficiencies without having to add any fertilizer at all. P (phosphorous) is more sensitive to pH than most other nutrients. If you are familiar with broomsedge, an abundance of it in the pasture is often because of low P availability. Broomsedge has low P requirements. It isn't really that competitive of a plant, but can grow where other plants/grasses are having a difficult time. When you sweeten the soil with lime, this makes phosphorous in the soil available. Doing this creates conditions where more desirable grasses can grow, and can easily now outcompete the relatively weak broomsedge.</p><p></p><p>After liming, you might find you don't even need to fertilize with P. As for the N, consider adding more legumes that will fix N and may end up being a permanent solution to a perpetual N deficiency problem that occurs every year.</p></blockquote><p></p>
[QUOTE="Mark Reynolds, post: 1806972, member: 43196"] look at what [USER=14175]@M.Magis[/USER] posted in this thread. Take note that they said AVAILABILITY io nutrients/fertilizer TO THE PLANT/GRASS. What happens is that when the pH of a soil is low. nutrients within the soil (they ARE there) start getting 'locked up' within the soil itself and the plant can no longer use them. Adding fertilizer in this case does absolutely no good at all. Adding lime to correct the pH can end up solving nutrient deficiencies without having to add any fertilizer at all. P (phosphorous) is more sensitive to pH than most other nutrients. If you are familiar with broomsedge, an abundance of it in the pasture is often because of low P availability. Broomsedge has low P requirements. It isn't really that competitive of a plant, but can grow where other plants/grasses are having a difficult time. When you sweeten the soil with lime, this makes phosphorous in the soil available. Doing this creates conditions where more desirable grasses can grow, and can easily now outcompete the relatively weak broomsedge. After liming, you might find you don't even need to fertilize with P. As for the N, consider adding more legumes that will fix N and may end up being a permanent solution to a perpetual N deficiency problem that occurs every year. [/QUOTE]
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