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Iron fertilizer for oranges and use method thereof

An iron fertilizer and citrus technology, which is applied in fertilization methods, applications, liquid fertilizers, etc., can solve the problems that ferrous sulfate is prone to oxidation and the effect is easily affected by the environment, so as to achieve easy realization, delay the oxidation of iron ions, and prolong the action time Effect

Inactive Publication Date: 2018-08-07
JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
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  • Description
  • Claims
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Problems solved by technology

[0004] Purpose of the invention: the present invention provides an iron fertilizer for citrus, which solves the problems that ferrous sulfate in existing iron fertilizers is prone to oxidation and the effect is easily affected by the environment

Method used

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  • Iron fertilizer for oranges and use method thereof
  • Iron fertilizer for oranges and use method thereof
  • Iron fertilizer for oranges and use method thereof

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Experimental program
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Effect test

Embodiment

[0016] The basic fertility of the orchard is organic matter 13.4g / kg, available nitrogen 52.7mg / kg, available phosphorus 15.8mg / kg, available potassium 145.5mg / kg, available iron 3.77mg / kg, pH value 7.43, and the test material is 10-year-old Wenzhou satsuma .

[0017] Treatment: 30 days after the growth of citrus spring shoots stops, spray once every 25 days, a total of 4 sprays, spray on the front and back of the leaves, use FeSO 4 As a control, 4 plants were treated for 3 repetitions.

[0018] Table 1: Available iron content in leaves and fruits of Satsuma mandarin with different treatments

[0019]

[0020] Note: Different letters in the same column indicate significant differences among treatments.

[0021] It can be seen from Table 1 that after spraying iron fertilizer, the iron content of Wenzhou satsuma leaves and fruits increased significantly, and the iron contents of leaves and fruits reached 117.63mg / kg and 11.51mg / kg, respectively, which were higher than those...

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Abstract

The invention discloses iron fertilizer for oranges. The iron fertilizer is prepared from the following components in percentage by weight: 1-2% of ferrous sulfate, 1.5-2.1% of an antioxidant and thebalance of water, wherein the antioxidant is one or two of EDTA-Na2 (Ethylene Diamine Tetraacetic Acid Disodium salt) and potassium fulvic acid. A use method of the iron fertilizer comprises the following steps: (1) spraying the iron fertilizer onto both sides of leaves 48-52 days after blossom drop of the oranges, wherein the spraying time is after 16:00 in a day; and (2) spraying once every 18-22 days, and for totally 3 times. The iron fertilizer disclosed by the invention can effectively delay iron ion oxidation, prolong the action time of ferrous iron, effectively regulate physiological metabolism of plants, improve the fruit quality and realize high quality production of the oranges; and the use method disclosed by the invention is simple to operate and easy to realize.

Description

technical field [0001] The invention relates to a fertilizer, in particular to a special iron fertilizer for citrus and its application method. Background technique [0002] Iron is an essential micronutrient element for plants, and participates in many physiological processes such as photosynthesis, redox reactions, electron transfer, and respiration in plants. According to statistics, about 40% of the soil in the world is iron deficient, and iron deficiency exists in most areas of our country. Iron deficiency and chlorosis of fruit trees have become one of the common physiological diseases in fruit tree production. Most of China's citrus production areas are distributed in mountainous areas with poor soil texture conditions. Nutrient leaching is serious or nutrients are difficult to absorb due to unsuitable soil pH. Especially in alkaline soils, iron deficiency chlorosis commonly occurs, which is serious. Affect the growth and fruit quality of citrus. [0003] Applying i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00A01C21/00
CPCA01C21/005C05D9/02C05G3/00C05G5/23
Inventor 陈巍孙兴民郭正兵吴燕华
Owner JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
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