The soil testing and formula fertilizing inquiry machine is a high-tech product integrating functions of a palmtop computer, a global positioning system (GPS), a soil information inquiry, a soil testing and fertilization scheme consultation, a mobile phone, and a digital camera. The soil types, physicochemical traits, nutrient content, and abundance conditions of arbitrary plots, information on fertilization schemes for multiple crops and varieties can be found with just one click.
This year, due to the excessive application of pesticides and chemical fertilizers in vegetable production, the accumulation of harmful substances in vegetable products has seriously affected people's health. Now more and more attention is paid to the cultivation of pollution-free vegetables to ensure that the contents of nitrates and other harmful substances in vegetables do not exceed the standards. The soil testing formula fertilizing machine can also be used to measure the nutrient content of the soil in which the vegetables are grown and how the vegetables should be fertilized.
The fertilization methods for vegetables include:
1. Reasonable application of nitrogen fertilizer. A reasonable amount of nitrogen fertilizer, in addition to improving the yield of vegetables, also has a certain improvement in the quality of vegetables. The rational application of nitrogen fertilizer is one of the major problems in pollution-free production.
2. Increase the application of phosphorus and potassium fertilizers. The use of phosphate fertilizer can provide phosphorus nutrients for vegetables, but also can inhibit the activity of heavy metals, cadmium, lead, zinc, arsenic, reduce toxicity, reduce hazards; increase potassium fertilizer, can reduce the accumulation of nitrate in vegetables, improve vegetable quality. After potassium fertilizer was applied to vegetables, the content of vitamin C and sugar in fruits was significantly increased, and the storage durability was also improved.
3. Increase organic fertilizer. It can increase soil organic matter content, enhance the adsorption capacity and complexation ability of soil to pollutants, effectively inhibit the toxicity of cadmium, lead to vegetables, and reduce nitrate content.
4. Interplanting green manure. Interplanting green manure (such as wolfberry) is an effective way to maintain and increase soil fertility. Through nitrogen fixation of legume green manure, more abundant nitrogen resources can be obtained to increase soil organic matter content, and at the same time, the granule structure of the soil can be improved by the activity and decomposition of microorganisms.
5. Promote balanced fertilization techniques. According to the soil fertility and vegetable yield and the characteristics of different fertilizers, scientific and rational application of chemical fertilizers, the development of special fertilizers, and promote the application of fertilizers. Spraying molybdenum fertilizer can reduce the nitrate content in lettuce, Chinese cabbage and spinach.
Soil testing formula fertilization inquiry machine function features:
1. Small and beautiful, easy to carry, check in your pocket anytime, anywhere. Large screen display, button-type operation, simple and quick operation.
2. All the data of the county arable land resource management information system are exported in one click, and can be directly copied to the SD card. Insert the SD card into the “test soil and formula fertilization information query PDA†to query. The data for one county is about 50M, and one 2G card can store data for about 30-40 counties.
3. The map is easy to find. The map can be zoomed in, zoomed out, or displayed in full by the corresponding buttons. When the scale of the map changes, the system will automatically display or hide some map elements. The map interface is clean and beautiful, and it is convenient to find the field to be queried.
4. After finding the field to be queried, simply click on the information query button and click on the plot in the map to find the basic information of the soil type, nutrient content, and vacancy assessment results, etc. of the plot. Soil testing formula for crops.
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