Method for determining surplus and deficiency of mineral elements of Chinese chestnut leaves

A technology of mineral elements and chestnut, applied in the field of determining the abundance and deficiency of mineral elements in chestnut leaves

Inactive Publication Date: 2013-08-21
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Method for determining surplus and deficiency of mineral elements of Chinese chestnut leaves
  • Method for determining surplus and deficiency of mineral elements of Chinese chestnut leaves
  • Method for determining surplus and deficiency of mineral elements of Chinese chestnut leaves

Examples

Experimental program
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Embodiment 1

[0055] 1. Determine the content of mineral elements in chestnut leaves

[0056] 1.1 Selection of representative chestnut gardens

[0057] With the assistance of local chestnut technicians and chestnut farmers, the inventor conducted a comprehensive investigation on the agro-ecological background and production status of Yanshan Zaofeng in Qianxi County in recent years. The investigation mainly included site conditions, cultivation management level, etc. On the basis of comprehensive consideration of various survey factors, 23 representative chestnut orchards in each township of the county were selected as sampling points for the experiment, and a schematic diagram of the site distribution of the selected representative chestnut orchards was prepared by using the GPS positioning method (see figure 2 ). At the same time, the inventor also recorded the coordinates, altitude, soil type, etc. of the sample plot in detail, so as to prepare for the follow-up work.

[0058] 1.2 Coll...

Embodiment 2

[0098] This embodiment takes figure 2 Take No. 13 Liyuan (low-yielding group) as an example, and reversely verify the accuracy of the index grading standards for each element in Table 4 obtained in Example 1, as follows:

[0099] First of all, it can be seen from Table 3 that the DRIS index of each element in the leaves of No. 13 Liyuan Yanshan Zaofeng Chestnut in the low-yield group are: N: 6.210, P: 1.011, K: -6.910, Ca: 9.368, Mg: 13.127, Fe: 16.549, Mn: -22.381, Cu: 0.097, B: -17.070.

[0100] Then, the DRIS index of each element in the leaves of Liyuan No. 13 Liyuan Yanshan Zaofeng chestnut in the low-yielding group was calculated. Compare the index ranges of the five levels of severe deficiency, mild deficiency, suitable, slight excess and severe excess of each element shown in Table 4. As a result, it can be judged that the leaves of Yanshan Zaofeng Chinese chestnut in this chestnut garden belong to the appropriate range of P and Cu, K, Mn, and B are severely deficien...

Embodiment 3

[0104] This embodiment takes figure 2 The No. 5 chestnut garden (high-yield group) shown as an example, the yield model of the chestnut garden Yanshan Zaofeng foliar spraying trace elements Mn, Fe, B was obtained by using the second general rotation combination design, and the influence of these three factors on chestnut The order of influence of yield, and it is compared with the fertilizer-required order of this Chinese chestnut garden that adopts blade DRIS method to draw in embodiment 1, so that verify the accuracy of the index grading standard in the table 4 that embodiment 1 obtains, specifically as follows:

[0105] 1 Materials and methods

[0106] 1.1 Overview of the test site

[0107] The experiment was carried out in the Chestnut Demonstration Base in Hanerzhuang Township, Qianxi County, Hebei Province (ie figure 2 No. 5 chestnut garden shown), the soil texture of the chestnut garden is sandy loam. The test material is the 12-year-old "Yanshan Zaofeng", the main l...

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Abstract

The invention discloses a method for determining a surplus and a deficiency of mineral elements of Chinese chestnut leaves. The method comprises the following steps of: determining contents of the mineral elements of the Chinese chestnut leaves to be determined; based on the obtained contents of the mineral elements, determining the following measurements of N/P, N/K, Mg/N, P/K, Mg/P, Mg/K, Fe/Mn, Fe/B, 1000Ca/Mn, 1000Ca/B, 1000Mg/Fe, 1000Mg/Mn, 100Mg/Cu, 100P/B and 1000N/Mn so as to obtain a measurement set; selecting at least one measurement Mi relevant to predetermined mineral elements from the measurement set for the predetermined mineral elements; determining a surplus and deficiency index of the predetermined mineral elements based on a formula; and determining a surplus and deficiency degree of the predetermined mineral elements of the Chinese chestnut leaves to be determined based on the surplus and deficiency index of the predetermined mineral elements. By using the method, the surplus and deficiency degree of the mineral elements of Yanshan Zaofeng Chinese chestnut leaves produced in Qianxi County, Hebei Province can be accurately and effectively determined and can further provide basis for scientific balanced fertilization of Yanshan Zaofeng Chinese chestnuts produced in Qianxi County.

Description

technical field [0001] The invention relates to a method for determining the mineral element deficiency of chestnut leaves. Background technique [0002] Chestnut is a deciduous tree of the genus Castanes Mill in the Fagaceae family. It is native to my country and is one of the earliest and most famous special agricultural products with high economic value in my country. It has "hardcore crops" and "woody grains". The reputation of chestnuts is very popular among consumers at home and abroad because of their high sugar content, strong waxiness and easy peeling of the astringent skin. In my country, chestnuts are cultivated in 14 provinces across the country, among which Hebei, Shandong, Anhui, and Hubei are famous main chestnut producing areas, especially the Yanshan area of ​​Hebei, where the yield and quality of chestnuts rank first in the country. "Chinese chestnut belongs to Jingdong, and Jingdong chestnut belongs to Qianxi". Qianxi County is located at the southern foot...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 郭素娟李广会柴迪迪邹峰谢鹏吕文君熊欢秦天天赵国强付庆伟王凤春
Owner BEIJING FORESTRY UNIVERSITY
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