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

Inactive Publication Date: 2003-01-01
INST OF SOIL & FERTILIZER SHANDONG ACAD OF AGRI SCI
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Problems solved by technology

First of all, plastic greenhouses are built on field soil. Due to the different years of construction and the influence of fertilization levels, the soil foundation and nutrient content vary greatly. The test results of individual plots are poorly representative and difficult to popularize.
Secondly, the existing recommended fertilization method mainly calculates the amount of fertilization manually based on the yield level, crop nutrient content, and fertilizer utilization rate. Due to the limitation of calculation means, this method has few factors to consider, and the number of factor levels is also limited. The impact of the further improvement of the fertilization level of greenhouse vegetables

Method used

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  • Fertilizer applying expert system for vegetable in green house
  • Fertilizer applying expert system for vegetable in green house
  • Fertilizer applying expert system for vegetable in green house

Examples

Experimental program
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Effect test

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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Abstract

The present invention relates to technology and method of using computer system to proceed greenhouse vegetable fertilization, said method incldues the following steps: collect data related to fertilization, establish equation based on collected data, divide the vegetable yield into different grades, i.e. economic yield, maximum yield and medium yield, divide the greenhouse soil nutrient into newgreen house and old greenhouse, edit computer program based on related parameters, such as relation equation, nutrient requirement of vegetable etc to obtain fertilizing system, then used computer program to operate fertilization. It only needs to input the available N, P and K of soil, the system can automatically give out the required quantity of N, P and K, then calculated to the quantity of different fertilizers.

Description

(1) Technical field [0001] The invention relates to a method for fertilizing greenhouse vegetables by using a computer system, and belongs to the technical field of vegetable fertilization. (2) Background technology [0002] In the 1980s, in order to solve the problem of a single variety of winter vegetables in China, farmers in Wafangdian, Liaoning Province invented a winter-warm plastic greenhouse with Chinese characteristics, and quickly promoted it in northern my country. Due to the lack of systematic research on fertilization of vegetables in greenhouses, farmers have been using customary and empirical fertilization patterns, resulting in imbalances in soil nutrient ratios, lower fertilizer use efficiency, lower product quality, and limited further increase in yield. At present, traditional research methods are still used in the research on fertilization of greenhouse vegetables, such as studying the effect and utilization rate of a certain fertilizer on a certain plot,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01G7/00A01G9/00
Inventor 于淑芳高弼模高贤彪卢丽萍
Owner INST OF SOIL & FERTILIZER SHANDONG ACAD OF AGRI SCI
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