How to improve the fertilizer efficiency utilization rate of fertilizer
2018-08-12 00:02:06
The low utilization rate of nitrogen fertilizer is a prominent problem that plagues agricultural production. In order to reduce the loss of active ingredients of chemical fertilizers and improve their economic benefits, scientific and technological personnel in the agricultural machinery and agricultural sectors have been conducting research, exploration and experimentation. According to the test, when the temperature is 29 ° C and the soil moisture content is 13.6%, the surface of the ammonium bicarbonate is applied, and the volatilization loss is 5.49% after 12 hours. The same fertilizer is applied to the soil below 6 cm and the volatilization loss after 12 hours. Only 0.3%. It can be seen that the deep application of chemical fertilizer can improve the efficiency of fertilizer use. In addition, the agronomic measures using chemical fertilizers combined with nitrogen-fixing agents or other fertilizers can significantly improve the efficiency of fertilizer utilization from the other stove.
1. Mixed application of chemical fertilizers (1) Ammonium bicarbonate additive The chemical aid ammonium bicarbonate additive is added to the ammonium carbonate in proportion, which can effectively inhibit the decomposition and volatilization of nitrogen, thereby improving the fertilizer efficiency utilization of ammonium bicarbonate3- 4 times.
(2) Incorporating a nitrogen-fixing agent into a nitrogen fertilizer in a deep application, the nitrogen fixation rate can be increased by 1.5-2.0 times, and the nitrogen utilization rate can be increased by 10%-30%.
(3) Mixed application of urea and borax According to the ratio of (400-500):1, urea and borax can significantly reduce the volatilization loss of ammonia, increase the utilization rate of nitrogen, and effectively prevent wheat grain from being full, rapeseed Inaccurate, cotton buds do not flower and so on.
(4) Urea and oxalic acid mixed with cotton base fertilizer, such as ammonium "nitrogen fertilizer 200, phosphate fertilizer 140, potassium fertilizer 40, oxalic acid 5" ratio application, can increase the number of ammoniated bacteria by 4.6 times, nitrogen fertilizer utilization rate increased by 17.3%, nitrogen The loss rate is reduced by 25%.
2. Deep application of chemical fertilizers (1) Deep application of bottom fertilizer The fertilizer applicator is installed on the plough frame. When the tractor cultivates land, the fertilizer is applied to the soil cultivation layer with the plough.
(2) Simultaneously applying the seed fertilizer, the fertilizing device and the seeding device are installed in the same machine, and the fertilizer is deeply applied to the bottom or the side of the seed while the seeding is being carried out. It is necessary to ensure that there is a soil separation layer of 3-5 cm between the seed fertilizers to prevent seed and fertilizer from mixing and damaging the seeds.
(3) Deep application of top dressing in the process of growing crops using chemical fertilizer top dressing device or adding top dressing machine on cultivating soil-cultivating machine, completing multi-steps such as ditching, loosening, fertilizer discharging and covering soil, and applying nitrogen fertilizer deep into crop roots .
1. Mixed application of chemical fertilizers (1) Ammonium bicarbonate additive The chemical aid ammonium bicarbonate additive is added to the ammonium carbonate in proportion, which can effectively inhibit the decomposition and volatilization of nitrogen, thereby improving the fertilizer efficiency utilization of ammonium bicarbonate3- 4 times.
(2) Incorporating a nitrogen-fixing agent into a nitrogen fertilizer in a deep application, the nitrogen fixation rate can be increased by 1.5-2.0 times, and the nitrogen utilization rate can be increased by 10%-30%.
(3) Mixed application of urea and borax According to the ratio of (400-500):1, urea and borax can significantly reduce the volatilization loss of ammonia, increase the utilization rate of nitrogen, and effectively prevent wheat grain from being full, rapeseed Inaccurate, cotton buds do not flower and so on.
(4) Urea and oxalic acid mixed with cotton base fertilizer, such as ammonium "nitrogen fertilizer 200, phosphate fertilizer 140, potassium fertilizer 40, oxalic acid 5" ratio application, can increase the number of ammoniated bacteria by 4.6 times, nitrogen fertilizer utilization rate increased by 17.3%, nitrogen The loss rate is reduced by 25%.
2. Deep application of chemical fertilizers (1) Deep application of bottom fertilizer The fertilizer applicator is installed on the plough frame. When the tractor cultivates land, the fertilizer is applied to the soil cultivation layer with the plough.
(2) Simultaneously applying the seed fertilizer, the fertilizing device and the seeding device are installed in the same machine, and the fertilizer is deeply applied to the bottom or the side of the seed while the seeding is being carried out. It is necessary to ensure that there is a soil separation layer of 3-5 cm between the seed fertilizers to prevent seed and fertilizer from mixing and damaging the seeds.
(3) Deep application of top dressing in the process of growing crops using chemical fertilizer top dressing device or adding top dressing machine on cultivating soil-cultivating machine, completing multi-steps such as ditching, loosening, fertilizer discharging and covering soil, and applying nitrogen fertilizer deep into crop roots .
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