Rod bank for testing plant root growth penetrating power

A technology of penetrating ability and plant root system, applied in botany equipment and methods, horticulture, cultivation, etc., can solve the problems of reducing the total amount of nutrient and water absorption, reducing the number of roots, affecting root extension, etc., to ensure high agricultural production and manufacturing The effect of low cost and simple structure

Inactive Publication Date: 2015-09-02
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Changes in soil compaction have an impact on the growth and development, absorption of nutrients and water of crop roots. On the one hand, as the compactness increases, the contact between the root system and the soil becomes closer, allowing more nutrients and water to enter the root system , so that the absorption capacity of a single root is improved; but on the other hand, with the increase of soil bulk density, the number of roots will be reduced, and the bulk density and soil mechanical resistance will affect the extension of the root system, thereby restricting and destroying the growth of the root system. The weight is reduced, which reduces the total absorption of nutrients and water

Method used

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  • Rod bank for testing plant root growth penetrating power
  • Rod bank for testing plant root growth penetrating power
  • Rod bank for testing plant root growth penetrating power

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Experimental program
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Embodiment Construction

[0009] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. A plant root growth penetrating ability measuring rod set, the plant root growth penetrating ability measuring rod set includes a standard basic rod and a comparative experiment rod, the structure of the standard basic rod and the comparative experimental rod is: on the upper cylinder 1 The lower cylinder body 4 is installed on the lower side through the fixing card 2, and the upper cylinder body 1 and the lower cylinder body 4 are coaxially connected into one body. The inner hole diameters of the upper and lower cylinder bodies 1 and 4 are Φ 20-50cm, the height dimension H of the upper cylinder 1 1 is 15cm, the height dimension H of the lower cylinder 4 2 is 30cm; inside the upper cylinder 1, the seedbed compacted soil layer 6 and the covering soil layer 5 are sequentially assembled from bottom to top, and the thickness dimension H of the covering soil...

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Abstract

The invention provides a rod bank for testing plant root growth penetrating power and belongs to agricultural scientific research instruments. The rod bank comprises a standard reference rod and a contrast experiment rod and is structurally characterized in that a lower cylinder is coaxially mounted at the lower side part of an upper cylinder through a fixing clamp; a seedbed compaction soil layer and a soil covering layer are sequentially arranged in the upper cylinder from bottom to top, and a river sand layer is arranged in the lower cylinder; a gauze element is arranged between the seedbed compaction soil layer and the river sand layer; the soil bulk densities of the seedbed compaction soil layer in the standard reference rod and the contrast experiment rod are 1.10-1.20 g / cm<3> and 1.45-1.55 g / cm<3> respectively. The structure of the rod bank is simple, the manufacturing cost is low, test operation is simple and convenient, test data are accurate, the application range is wide, and a technical support is provided for basis research of crop seed root growth penetrating power.

Description

technical field [0001] The invention belongs to the agricultural scientific research instrument, and mainly relates to a device for measuring the ability of penetrating the soil during the root system growth of agricultural plants. Background technique [0002] Changes in soil compaction have an impact on the growth and development, absorption of nutrients and water of crop roots. On the one hand, as the compactness increases, the contact between the root system and the soil becomes closer, allowing more nutrients and water to enter the root system , so that the absorption capacity of a single root is improved; but on the other hand, with the increase of soil bulk density, the number of roots will be reduced, and the bulk density and soil mechanical resistance will affect the extension of the root system, thereby restricting and destroying the growth of the root system. The weight is reduced, which reduces the total absorption of nutrients and water. Especially in recent ye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01G17/00
CPCA01G2/00A01G17/00
Inventor 龚振平闫超董守坤马春梅曹立为
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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