We have tons of naturally occurring nitrogen in this world. Not only does it rain down on us it also is put into the soil by legumes, it is introduced to the soil by plant and root decomposition. And very little nitrogen of any kind washes into streams from surface water. Nitrogen is attracted to water that carries the nitrogen down into the soil and it does end up in shallow water tables. Here in Iowa nitrogen can get into streams when it is carried along in the water from drain tile under the fields. Several smaller rate applications of nitrogen on the crops can help with this leaching into drain tile. It will not alleviate it though. Several applications means more machinery expense per acre and more hours spent running the machinery. If we have a dry year the unused natural and man made nitrogen can stay hung up in the soil but if the next year is wet that built up nitrogen can turn into a glut of nitrogen being carried down into the water table. Then the environmentalists really get dandered up thinking this glut will happen every year where in reality it is a one year occurrence. I would think the phosphorous and potassium load on the Mississippi would be lower now that farming has gone to minimum or no till but it doesn t look that way. Potassium and phosphorus attach to the soil and stay put as long as the soil stays put. If the soil washes into the stream the P and K will ride along with the soil. Just a few random thoughts.
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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