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JiaochengCounty Zhi Bao Wang Fertilizer 

Industry Co., Ltd.

Address：North of tan village,Jiaocheng county,

lvliang city.

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Howtoapplymagnesiumfertilizer?Magnesiumfertilizerapplicationtechnology

(A) the amount of magnesium fertilizer
The application of magnesium fertilizer should be based on soil and plant magnesium deficiency to determine the status of a few analysis of magnesium-deficient soil and plant socks, the application of magnesium fertilizer will have good results, especially magnesium more crops, magnesium better. For crops that require more magnesium (such as sugar cane, pineapple, oil palm, bananas and cotton, tobacco, horse seedlings, corn, etc.), a level of 10-15 kg per 667 square meters of magnesium sulfate is appropriate, Insert, in the fruit-bearing period per plant can be applied 0.2-0.3 kg; root sprayed with magnesium sulfate concentration of 1% -2%, spray fertilizer solution per 667 square meters 25-50 kg. According to Liu Changzhi research, rape application of magnesium sulfate 5-67 kg per 667 square meters have good results. According to Lin Qi-min studies, red soil paddy rice cultivation, 7.5 kg per 667 square meters of magnesium sulfate has good results.
(B) Alkali and breed soil
Different types of magnesium fertilizer, its chemical properties are also different, when applied to pay attention to the collapse of soil pH, close to neutral or slightly alkaline, especially low sulfur soil selection of magnesium sulfate and magnesium chloride is better, and acidic soil to Selection of magnesium carbonate as well, Xie Jianchang (1963) in the southern acid red soil to do millet magnesium application test, four kinds of magnesium fertilizer on the efficiency of millet carbonated magnesium as the best, followed by fertilizer efficiency from: magnesium carbonate, Magnesium nitrate, Magnesium chloride, Magnesium sulphate; Magnesium deficiency Magnesium upconversion Application of calcined dolomite quicklime is ideal for magnesium fertilizers, both for crop magnesium supplementation and for neutralization of acidity. In addition, ash, potassium magnesium fertilizer, calcium magnesium phosphate is also ideal magnesium fertilizer.
(C) other factors to be considered when applying magnesium fertilizer
In general, strong acidity, coarse texture, strong leaching, low Mg content in parent material, and excessive application of lime or potash are susceptible to magnesium deficiencies and should be given priority in applying Mg fertilizer. Varieties with the same crop, high yield and biomass are easy Magnesium deficiency, magnesium fertilizer should also be given priority. The application of nitrogen fertilizer on magnesium deficient soil also had some effects on the magnesium nutrition of crops. It has been reported that the extent of magnesium deficiency in crops decreases with the order of the following nitrogenous fertilizers: ammonium sulfate, urea, ammonium nitrate, calcium nitrate. Magnesium fertilizer to do base fertilizer, soil forced or spray can be. Chemical magnesium fertilizer and farmyard manure with the effect is often better than alone, it is worth promoting.
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