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Large Potassium Sulphate Cast Iron Grain Mill Cost

2019-05-10 A field experiment with rain-fed winter wheat investigated the nutritional aspects of paper-mill sludge as a mulch and incorporated into the topsoil. Treatments with chemical fertilizers were also used as controls. Paper-mill sludge used as mulch with high rate 100 MG ha −1 and also the combined N and K mineral fertilizer treatments increased yield when a low potassium otherwise caused ...

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