Saline-alkali soil soil improvement fertilizer and preparation method thereof

Abstract

The invention discloses a saline-alkali soil improvement fertilizer and a preparation method thereof. The saline-alkali soil improvement fertilizer consists of the following raw materials in parts by weight: 50-70 parts of a humic fertilizer, 5-15 parts of a compound fertilizer, 20-40 parts of a mineral fertilizer, 10-15 parts of an acid fertilizer and 2-5 parts of a water-retaining agent. The saline soil improvement fertilizer is rich in humic acid and trace element, nutrient components such as nitrogen, phosphorus and potassium are relatively balance, the soil fertility and the soil structure can be improved, the speed of capillary water movement and ineffective evaporation of moisture can be reduced, and a remarkable salt returning suppression effect can be achieved. Meanwhile, the saline-alkali soil improvement fertilizer is relatively good in exchange capability, harmful ions such as Na<+>, SO4<2-> and Cl<-> can be adsorbed, the pH value and the alkalisation degree of soil can be reduced, and the soil exchange capability can be improved.

Description

technical field

[0001] The invention relates to a fertilizer, in particular to a special fertilizer mainly used in improvement and restoration of saline-alkali land and a preparation method thereof. Background technique

[0002] Saline-alkali land improvement, as a worldwide problem, has received unanimous attention from experts and scholars at home and abroad for many years. Due to the defects of high salt content, poor structure and low fertility in saline-alkali soil, it is difficult to carry out agricultural production without improvement and treatment, which greatly limits the effective use of land resources in this area. With the continuous deepening of regional economic development, ecological problems have become increasingly prominent, especially the problem of land salinization, which seriously restricts the development of regional agriculture.

[0003] According to incomplete statistics, my country has 99.13 million hectares of saline-alkali land, distributed in ...

Examples

Embodiment 1

[0030] The invention relates to a soil improvement fertilizer for saline-alkali land. The soil improvement fertilizer is composed of the following raw materials in parts by weight: 50 parts of humus fertilizer, 5 parts of compound fertilizer, 20 parts of mineral fertilizer, 10 parts of acidic fertilizer and 2 parts of water-retaining agent.

[0031] The humic fertilizer is composed of the following raw materials by weight: 10 parts of humic acid, 15 parts of peat, 20 parts of wood chips and 30 parts of straw; the product obtained after the wood chips and straw are sealed and multi-stage fermented.

[0032] The compound fertilizer is composed of the following raw materials in parts by weight: 7 parts of ammonium phosphate, 6 parts of urea and 8 parts of calcium phosphate.

[0033] The mineral fertilizer is made from the following raw materials in parts by weight: 20 parts of zeolite, 30 parts of calcite, 10 parts of diatomite and 4 parts of slow-release binder.

[0034] The aci...

Embodiment 2

[0043] A soil improvement fertilizer for saline-alkali land. The soil improvement fertilizer is composed of the following raw materials in parts by weight: 60 parts of humus fertilizer, 10 parts of compound fertilizer, 29 parts of mineral fertilizer, 13 parts of acidic fertilizer and 3 parts of water retaining agent.

[0044]The humic fertilizer consists of the following raw materials by weight: 15 parts of humic acid, 18 parts of peat, 26 parts of sawdust and 35 parts of straw; the product obtained by sealing the sawdust and straw through multi-stage fermentation.

[0045] The compound fertilizer is composed of the following raw materials in parts by weight: 9 parts of ammonium sulfate and 10 parts of calcium phosphate.

[0046] The mineral fertilizer is made from the following raw materials in parts by weight: 23 parts of zeolite, 35 parts of calcite, 15 parts of diatomite and 6 parts of slow-release binder.

[0047] The acidic fertilizer consists of the following raw materi...

Embodiment 3

[0056] The invention relates to a soil improvement fertilizer for saline-alkali land. The soil improvement fertilizer is composed of the following raw materials in parts by weight: 65 parts of humus fertilizer, 13 parts of compound fertilizer, 35 parts of mineral fertilizer, 14 parts of acidic fertilizer and 4 parts of water-retaining agent.

[0057] The humic fertilizer consists of the following raw materials by weight: 18 parts of humic acid, 21 parts of peat, 29 parts of wood chips and 37 parts of straw; the product obtained after the wood chips and straw are sealed and multi-stage fermented.

[0058] The compound fertilizer is composed of the following raw materials in parts by weight: 8 parts of ammonium sulfate, 7 parts of urea and 11 parts of calcium phosphate.

[0059] The mineral fertilizer is made from the following raw materials in parts by weight: 27 parts of zeolite, 39 parts of calcite, 18 parts of diatomite and 7 parts of slow-release binder.

[0060] The acidic...

technical field

[0001] The invention relates to a fertilizer, in particular to a special fertilizer mainly used in improvement and restoration of saline-alkali land and a preparation method thereof. Background technique

[0002] Saline-alkali land improvement, as a worldwide problem, has received unanimous attention from experts and scholars at home and abroad for many years. Due to the defects of high salt content, poor structure and low fertility in saline-alkali soil, it is difficult to carry out agricultural production without improvement and treatment, which greatly limits the effective use of land resources in this area. With the continuous deepening of regional economic development, ecological problems have become increasingly prominent, especially the problem of land salinization, which seriously restricts the development of regional agriculture.

[0003] According to incomplete statistics, my country has 99.13 million hectares of saline-alkali land, distributed in ...

Examples

Embodiment 1

[0030] The invention relates to a soil improvement fertilizer for saline-alkali land. The soil improvement fertilizer is composed of the following raw materials in parts by weight: 50 parts of humus fertilizer, 5 parts of compound fertilizer, 20 parts of mineral fertilizer, 10 parts of acidic fertilizer and 2 parts of water-retaining agent.

[0031] The humic fertilizer is composed of the following raw materials by weight: 10 parts of humic acid, 15 parts of peat, 20 parts of wood chips and 30 parts of straw; the product obtained after the wood chips and straw are sealed and multi-stage fermented.

[0032] The compound fertilizer is composed of the following raw materials in parts by weight: 7 parts of ammonium phosphate, 6 parts of urea and 8 parts of calcium phosphate.

[0033] The mineral fertilizer is made from the following raw materials in parts by weight: 20 parts of zeolite, 30 parts of calcite, 10 parts of diatomite and 4 parts of slow-release binder.

[0034] The aci...

Embodiment 2

[0043] A soil improvement fertilizer for saline-alkali land. The soil improvement fertilizer is composed of the following raw materials in parts by weight: 60 parts of humus fertilizer, 10 parts of compound fertilizer, 29 parts of mineral fertilizer, 13 parts of acidic fertilizer and 3 parts of water retaining agent.

[0044]The humic fertilizer consists of the following raw materials by weight: 15 parts of humic acid, 18 parts of peat, 26 parts of sawdust and 35 parts of straw; the product obtained by sealing the sawdust and straw through multi-stage fermentation.

[0045] The compound fertilizer is composed of the following raw materials in parts by weight: 9 parts of ammonium sulfate and 10 parts of calcium phosphate.

[0046] The mineral fertilizer is made from the following raw materials in parts by weight: 23 parts of zeolite, 35 parts of calcite, 15 parts of diatomite and 6 parts of slow-release binder.

[0047] The acidic fertilizer consists of the following raw materi...

Embodiment 3

[0056] The invention relates to a soil improvement fertilizer for saline-alkali land. The soil improvement fertilizer is composed of the following raw materials in parts by weight: 65 parts of humus fertilizer, 13 parts of compound fertilizer, 35 parts of mineral fertilizer, 14 parts of acidic fertilizer and 4 parts of water-retaining agent.

[0057] The humic fertilizer consists of the following raw materials by weight: 18 parts of humic acid, 21 parts of peat, 29 parts of wood chips and 37 parts of straw; the product obtained after the wood chips and straw are sealed and multi-stage fermented.

[0058] The compound fertilizer is composed of the following raw materials in parts by weight: 8 parts of ammonium sulfate, 7 parts of urea and 11 parts of calcium phosphate.

[0059] The mineral fertilizer is made from the following raw materials in parts by weight: 27 parts of zeolite, 39 parts of calcite, 18 parts of diatomite and 7 parts of slow-release binder.

[0060] The acidic...