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

A technology for water, fertilizer and orchards, applied in fertilization methods, calculations, fertilization devices, etc., can solve the problems of lack of theoretical basis, inability to achieve accurate and scientific topdressing, affecting the yield of fruit trees, etc., and achieve the effect of appropriate topdressing

Active Publication Date: 2017-04-19
SHANDONG AGRICULTURAL UNIVERSITY
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Problems solved by technology

The determination of the traditional amount of topdressing fertilizer is to predict the output of the year based on the output of fruit trees in previous years based on experience, so as to determine the amount of topdressing fertilizer in the current year. This method of determining the amount of topdressing fertilizer lacks a theoretical basis and cannot achieve accurate and scientific topdressing, which affects the yield of fruit trees.

Method used

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

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Embodiment Construction

[0028] The method for accurately estimating the amount of topdressing fertilizer integrated with water and fertilizer in orchards specifically includes the following steps:

[0029] S1, utilize digital camera to collect fruit tree image information, do panoramic collection to fruit tree ground part, obtain the true color original fruit tree image of 24-bit RGB color space;

[0030] S2. Convert the fruit tree image from the RGB color space to the Lab color space through a three-dimensional look-up table interpolation method.

[0031] S3, separating the Lab color space into L channel, a channel and b channel;

[0032] S4. Calculate the three-dimensional pixel histogram for the L, a, and b channels respectively. According to the three-dimensional pixel histogram, the difference between the flower bud and the background such as the soil and the sky in the a channel histogram is obvious, so the a channel is selected for self-adaptation Threshold segmentation to separate fruit tree...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/02A01C21/00G06T5/00G06T7/136G06T7/62G06T7/13
CPCA01C21/00G06Q50/02G06T2207/30188G06T2207/20032G06T2207/20036G06T2207/10024G06T5/70
Inventor 王金星孙林林刘双喜张宏建戚武振李友永
Owner SHANDONG AGRICULTURAL UNIVERSITY
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