Orchard water and fertilizer integration top-dressing amount accurate estimation method

Abstract

The invention relates to an orchard water and fertilizer integration top-dressing amount accurate estimation method, which comprises a fruit tree yield prediction module and a top-dressing amount calculation module, and is characterized in that the fruit tree yield prediction module estimates the quantity of flower buds of fruit trees by using area clustering through image acquisition, image processing and data analysis, and predicts the yield of the fruit trees by combining flower thinning experience, commodity fruit division and the single fruit weight standard in previous years; and the top-dressing amount calculation module acquires a fertilizer requirement of the fruit trees according to an empirical relation between the fruit tree yield and the fertilizing amount, and calculates the actual top-dressing amount of the fruit trees by combining the soil fertilizer containing amount, the fertilizer utilization rate and the fertilizer nutrient content according to a formula that the actual top-dressing amount is calculated by dividing the difference between the fertilizer requirement and the soil fertilizer containing amount by the fertilizer utilization rate and then multiplies the fertilizer nutrient content. According to the method, timely and appropriate top-dressing is achieved through fruit tree yield prediction, application of experience of the previous years, soil fertilizer content detection and calculation for the actual top-dressing amount of the fruit trees, thereby giving full play to the fertilizer efficiency, and meeting requirements of safety, high yield and high quality of apples.

Description

technical field

[0001] The invention relates to the technical field of orchard management, in particular to a method for accurately estimating the amount of topdressing fertilizer integrated with water and fertilizer in an orchard. Background technique

[0002] Fertilization is an important measure to maintain soil fertility and meet the nutritional elements required for fruit tree growth and development, flowering and fruiting. Fruit trees grow in the same place for many years, and they need to absorb and consume a large amount of inorganic nutrients from the soil for annual growth and fruiting. In order to meet the needs of apple safety, high yield, and high quality, the fertilization of fruit trees should be based on the law of fertilizer demand, tree nutritional status, fertilizer properties, soil fertility, and climatic conditions. If topdressing is carried out blindly, it will not be timely and appropriate. Not only will the fertilizer efficiency be poor, but it will ...

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