Method for improving potassium utilization rate of tobacco in high-calcium soil and compound vegetative body
A technology of utilization rate and nutrient body, applied in the direction of application, potassium fertilizer, fertilizer mixture, etc., can solve the problems of difficult potassium utilization in tobacco, achieve the effect of low application technology requirements, reduce soil potassium fixation, and reduce absorption and fixation
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Embodiment 1
[0030] A rod-shaped compound nutrient for improving the potassium utilization rate of tobacco in high-calcium soil, comprising the following components in parts by weight: 182 parts of potassium sulfate, 97 parts of potassium nitrate, 50 parts of potassium humate, 151 parts of decomposed cake fertilizer, 302 parts Parts of decomposed distiller's grains, 118 parts of ammonium nitrate phosphorus and 100 parts of monoammonium phosphate. Among them, the potassium source is composed of 182 parts of potassium sulfate, 97 parts of potassium nitrate and 50 parts of potassium humate, and the nutritional supplement is composed of 151 parts of decomposed cake fertilizer, 302 parts of decomposed distiller's grains, 118 parts of ammonium nitrate phosphorus and 100 parts of monoammonium phosphate.
[0031] The preparation of the above-mentioned rod-shaped compound nutrient body is as follows:
[0032] Pulverize the decomposed cake fertilizer, potassium humate, decomposed distiller's grains,...
experiment example 1
[0040] Experimental example 1 Effect of different pressures on the formation of rod-shaped compound nutrient bodies
[0041] Control the moisture content of the composite material in Example 1 to 3%, then apply different pressures to it, and test the molding effect, the data are as shown in Table 1: with the application of 315kg / cm 2 Compared with the pressure, 1400kg / cm is applied to the compound material 2 After compression, the compressive performance is better, and the crushing resistance is increased by 67.1%. When the moisture content is adjusted to 3.9%, the compound material is pressurized to 2000kg / cm 2 When the pressure is applied, the material leaks out of the filler space in the form of flakes, and it is extremely difficult to maintain the final molding effect. If the pressure is too high, it will easily cause mutual adhesion into thin sheets and be lost.
[0042] Table 1 The molding effect of the rod-shaped compound vegetative body of the present invention under...
experiment example 2
[0045] Experimental Example 2 Effects of Different Fertilizer Treatments on Tobacco
[0046] Fertilization and transplanting of flue-cured tobacco in Wazi Village, Pingdi Town, Renhe District, Panzhihua City, Sichuan Province. A single factor field experiment was designed, the treatments were CK1, CK2 and T respectively, the flue-cured tobacco variety was transplanted as Yunyan 87, and the transplanting density was 16500 plants / hm 2 , the transplanting row spacing is 1.2m, the plant spacing is 0.5m, except that the base fertilizer material is different, the flue-cured tobacco fertilization and transplanting methods are the same as in Example 1. The N input amount of CK1 and CK2 treatment was 7.5kg / mu, P 2 o 5 The input amount is 7kg / mu, K 2 O input amount is 21kg / mu, and each processing basal fertilizer material input is specific as follows:
[0047] CK1: Tobacco-specific fertilizer (N, 12%; P 2 o 5 , 12%; K 2 O, 25%; containing nitrate nitrogen 4.8%), general calcium (...
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