阅读说明：本技术 对应水质钙镁浓度梯度的番茄水培营养液配方 (Tomato water culture nutrient solution formula corresponding to water quality calcium and magnesium concentration gradient ) 是由 马彩霞 黄学谦 王吉庆 王倩 刘存款 刘珂 于 2019-11-27 设计创作，主要内容包括：本发明涉及植物无土栽培技术领域,具体涉及一种对应水质钙镁浓度梯度的番茄水培营养液配方,包括四水硝酸钙、硝酸钾、七水硫酸镁、尿素、磷酸、AR级硝酸、乙二胺四乙酸钠铁盐、硼酸、一水硫酸锰、七水硫酸锌、五水硫酸铜、七水钼酸铵、清水。本发明的有益效果：本发明适用EC值≤1.3ms/cm,钙离子含量≤120mg/L且镁离子含量≤80mg/L的水源,在不经水处理的情况下拓宽了水源的取用范围,增加了水的利用率,降低了实际生产成本。(The invention relates to the technical field of plant soilless culture, in particular to tomato hydroponic nutrient solution formulas corresponding to water quality calcium and magnesium concentration gradients, which comprise calcium nitrate tetrahydrate, potassium nitrate, magnesium sulfate heptahydrate, urea, phosphoric acid, AR-grade nitric acid, sodium ethylene diamine tetracetate ferric salt, boric acid, water manganese sulfate, zinc sulfate heptahydrate, copper sulfate pentahydrate, ammonium molybdate heptahydrate and clear water.)

1, tomato water culture nutrient solution formula corresponding to water quality calcium and magnesium concentration gradient, which is characterized by comprising the following raw materials:

calcium nitrate tetrahydrate, potassium nitrate, magnesium sulfate heptahydrate, urea, phosphoric acid, AR-grade nitric acid, sodium ferric ethylene diamine tetracetate, boric acid, -water manganese sulfate, zinc sulfate heptahydrate, copper sulfate pentahydrate, ammonium molybdate heptahydrate and the balance of clear water.

2. The tomato water culture nutrient solution formula corresponding to water quality calcium-magnesium concentration gradient, according to claim 1, wherein when the water quality parameters are calcium ion content less than or equal to 45mg/L and magnesium ion content less than or equal to 30mg/L, PH value is 7-8, the raw material content in the nutrient solution formula is as follows:

450-660 mg/L of calcium nitrate tetrahydrate, 659mg/L of potassium nitrate, 246-369 mg/L of magnesium sulfate heptahydrate, 20-30 mg/L of urea, 10-20ul/L of 250ul/L, AR-grade nitric acid, 20mg/L of sodium ethylene diamine tetracetate iron salt, 3mg/L of boric acid, 2mg/L of manganese sulfate hydrate, 0.22mg/L of zinc sulfate heptahydrate, 0.08mg/L of copper sulfate pentahydrate, 0.522mg/L of ammonium molybdate heptahydrate and the balance of clear water.

3. The tomato water culture nutrient solution formula corresponding to water quality calcium-magnesium concentration gradient, according to claim 1, wherein when the water quality parameter is 45 mg/L-calcium ion content is less than or equal to 90mg/L, 15 mg/L-magnesium ion content is less than or equal to 45mg/L, PH value is 7-8, the raw material content in the nutrient solution formula is:

270-550 mg/L of calcium nitrate tetrahydrate, 659mg/L of potassium nitrate, 123-246 mg/L of magnesium sulfate heptahydrate, 20-40 mg/L of urea, 10-20ul/L of 250ul/L, AR-grade nitric acid with phosphoric acid, 20mg/L of sodium ethylene diamine tetracetate iron salt, 3mg/L of boric acid, 2mg/L of manganese sulfate hydrate, 0.22mg/L of zinc sulfate heptahydrate, 0.08mg/L of copper sulfate pentahydrate, 0.522mg/L of ammonium molybdate heptahydrate and the balance of clear water.

4. The tomato water culture nutrient solution formula corresponding to water quality calcium-magnesium concentration gradient, according to claim 1, wherein when the water quality parameter is 75 mg/L-calcium ion content is 120mg/L, 36 mg/L-magnesium ion content is 80mg/L, PH value is 7-8, the raw material content in the nutrient solution formula is:

100-380 mg/L of calcium nitrate tetrahydrate, 659mg/L of potassium nitrate, 0mg/L of magnesium sulfate heptahydrate, 0-72.5 mg/L of potassium sulfate, 20-50 mg/L of urea, 10-20ul/L of phosphoric acid 200-grade and L, AR-grade nitric acid, 20mg/L of sodium ferric ethylenediamine tetracetate, 3mg/L of boric acid, 2mg/L of -grade manganese sulfate hydrate, 0.22mg/L of zinc sulfate heptahydrate, 0.08mg/L of copper sulfate pentahydrate, 0.522mg/L of ammonium molybdate heptahydrate, and the balance of clear water.

Technical Field

The invention relates to the technical field of soilless culture of plants, in particular to a formula of tomato water culture nutrient solutions corresponding to water quality calcium and magnesium concentration gradients.

Background

According to the research results, the soilless culture is used as advanced culture technologies to be rapidly developed in China, the nutrient solution is also more and more emphasized by people as a key factor for success or failure of the nutrient solution, particularly, water quality and nutrient solution blending are closely related, at present, many patents related to the nutrient solution are high, the requirement on water quality is high, for example, water is specified to be deionized water in patents with publication numbers of CN107879790A and CN109761714A, water is specified to be tap water in patents with publication number of CN109534885A, many commercial nutrient solutions are only suitable for tap water or softened or purified water, the price of the tap water is 3-4.5 yuan/ton in general, the purification cost of pure water is 6-10 yuan/ton, the utilization rate of the water in the purification treatment is only 40-75%, the production cost is increased, the utilization rate of the tap water is reduced, calcium ion from calcium ion in the water is not utilized, calcium ion concentration of the nutrient solution is not more than that calcium ion is added in the fresh water, calcium ion is not more than calcium ion concentration of calcium ion, calcium ion is utilized in the nutrient solution, calcium ion is used in the nutrient solution, calcium ion concentration of calcium ion, calcium ion is more than calcium ion, potassium.

Disclosure of Invention

The invention aims to overcome the problems in the prior art, provides tomato water culture nutrient solution formulas corresponding to water quality calcium and magnesium concentration gradients, and can make up for the problem of strict water quality requirement of water culture and the blank of research on water culture vegetable culture by refining a water measurement formula to specific key ions.

In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:

tomato water culture nutrient solution formula corresponding to water quality calcium and magnesium concentration gradient, comprising the following raw materials:

calcium nitrate tetrahydrate, potassium nitrate, magnesium sulfate heptahydrate, urea, phosphoric acid, AR-grade nitric acid, sodium ferric ethylene diamine tetracetate, boric acid, -water manganese sulfate, zinc sulfate heptahydrate, copper sulfate pentahydrate, ammonium molybdate heptahydrate and the balance of clear water.

, when the water quality parameters are that the calcium ion content is less than or equal to 45mg/L and the magnesium ion content is less than or equal to 30mg/L, PH, the value is 7-8, the raw material content in the nutrient solution formula is as follows:

450-660 mg/L of calcium nitrate tetrahydrate, 659mg/L of potassium nitrate, 246-369 mg/L of magnesium sulfate heptahydrate, 20-30 mg/L of urea, 10-20ul/L of 250ul/L, AR-grade nitric acid, 20mg/L of sodium ethylene diamine tetracetate iron salt, 3mg/L of boric acid, 2mg/L of manganese sulfate hydrate, 0.22mg/L of zinc sulfate heptahydrate, 0.08mg/L of copper sulfate pentahydrate, 0.522mg/L of ammonium molybdate heptahydrate and the balance of clear water.

, when the water quality parameters are that the calcium ion content is more than or equal to 45mg/L and less than or equal to 90mg/L, the magnesium ion content is more than or equal to 15mg/L and less than or equal to 45mg/L, PH, and the value is 7-8, the raw material content in the nutrient solution formula is as follows:

270-550 mg/L of calcium nitrate tetrahydrate, 659mg/L of potassium nitrate, 123-246 mg/L of magnesium sulfate heptahydrate, 20-40 mg/L of urea, 10-20ul/L of 250ul/L, AR-grade nitric acid with phosphoric acid, 20mg/L of sodium ethylene diamine tetracetate iron salt, 3mg/L of boric acid, 2mg/L of manganese sulfate hydrate, 0.22mg/L of zinc sulfate heptahydrate, 0.08mg/L of copper sulfate pentahydrate, 0.522mg/L of ammonium molybdate heptahydrate and the balance of clear water.

, when the water quality parameters are that the calcium ion content is not less than 75mg/L and not more than 120mg/L, the magnesium ion content is not less than 36mg/L and not more than 80mg/L, PH, and the value is 7-8, the raw material content in the nutrient solution formula is as follows:

100-380 mg/L of calcium nitrate tetrahydrate, 659mg/L of potassium nitrate, 0mg/L of magnesium sulfate heptahydrate, 0-72.5 mg/L of potassium sulfate, 20-50 mg/L of urea, 10-20ul/L of phosphoric acid 200-grade and L, AR-grade nitric acid, 20mg/L of sodium ferric ethylenediamine tetracetate, 3mg/L of boric acid, 2mg/L of -grade manganese sulfate hydrate, 0.22mg/L of zinc sulfate heptahydrate, 0.08mg/L of copper sulfate pentahydrate, 0.522mg/L of ammonium molybdate heptahydrate, and the balance of clear water.

The invention has the beneficial effects that: 1. the invention is suitable for the water source with EC value less than or equal to 1.3ms/cm, calcium ion content less than or equal to 120mg/L and magnesium ion content less than or equal to 80mg/L, widens the taking range of the water source without water treatment, increases the utilization rate of water and reduces the actual production cost;

2. the invention adopts a water measuring formula mode, combines the adaptability of crops to the nutrient solution formula, fully utilizes calcium and magnesium ions in source water, saves resources and effectively reduces the cost of the nutrient solution;

3. the blended nutrient solution can effectively meet the requirement of high-quality production of tomatoes.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a statistical chart of pH values of different water sources in tomato water culture nutrient solution formula examples corresponding to water quality calcium and magnesium concentration gradients;

FIG. 2 is a statistical chart of EC values of different water sources in tomato water culture nutrient solution formula examples corresponding to water quality calcium and magnesium concentration gradients;

FIG. 3 is a statistical chart of calcium ion contents of different water sources in tomato water culture nutrient solution formula examples corresponding to water quality calcium and magnesium concentration gradients;

FIG. 4 is a statistical chart of magnesium ion content of different water sources in tomato water culture nutrient solution formula examples corresponding to water quality calcium and magnesium concentration gradients;

FIG. 5 is a statistical chart of calcium ion content in different water qualities of the same formula in an embodiment of tomato water culture nutrient solution formulas corresponding to water quality calcium and magnesium concentration gradients;

FIG. 6 is a statistical chart of the magnesium ion content in different water qualities of the same formula in an embodiment of tomato water culture nutrient solution formulas corresponding to water quality calcium and magnesium concentration gradients;

FIG. 7 is a statistical chart of water quality conditions of different water sources in tomato water culture nutrient solution formula examples corresponding to water quality calcium and magnesium concentration gradients.

Detailed Description

In order to make the technical means, the creation features, the achievement objects and the effects of the invention easy to understand, the technical solutions in the embodiments of the invention will be clearly and completely described below with reference to the drawings in the embodiments of the invention, and it is obvious that the described embodiments are only partial embodiments of of the invention, but not all embodiments.