Fertilizer applying expert system for vegetable in green house
A vegetable and expert technology, applied in the field of vegetable fertilization in greenhouses, can solve the problems of large differences in soil fertility and nutrient content, affecting the level of fertilization of greenhouse vegetables, and poor representativeness of test results. Effect
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Embodiment 1
[0020] 1. The relationship between the amount of fertilizer applied and the available nutrients in the soil
[0021] Collect soil samples: A county or city is divided into light soil, medium soil, and heavy soil according to the soil texture. Take a 20cm soil layer soil sample, select at least 20 points for each to make a mixed soil sample, air-dry indoors, and pick out large stones and Grass roots are all passed through a 1mm sieve.
[0022] Fertilization: Weigh 14 parts of 20g air-dried soil samples passed through a 1mm sieve into a small beaker, add 0, 20, 40, 60, 80, 100, 200, 300, 400, 500, 600, 700, 800, 900mg / kg nitrogen solution 20ml (equivalent to Mushi pure nitrogen 0, 3, 6, 9, 12, 15, 30, 45, 60, 75, 90, 105, 120, 135 kg), after shaking and mixing, open and dry naturally ( cover filter paper), the conventional method was used to determine the soil alkaline nitrogen content. Phosphorus and potassium do the same. Taking the amount of nitrogen applied to the soil a...
Embodiment 2
[0038] The relationship between growth and development of pepper and soil available nutrients
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