CN104276873A - Romaine lettuce soilless culture nutrient liquid and preparation method thereof - Google Patents

Abstract

The invention discloses a romaine lettuce soilless culture nutrient liquid. The romaine lettuce soilless culture nutrient liquid consists of the following components in parts by mass: 250-350 parts of rice washing water, 2-5 parts of urea, 1-5 parts of calcium nitrate, 1-5 parts of potassium nitrate, 1-3 parts of monopotassium phosphate, 1-6 parts of potassium sulfate, 0.5-2 parts of magnesium sulfate, 0.1-0.5 part of chelated iron, 0.2-2 parts of borax, 1-5 parts of sodium molybdate, 2-8 parts of elecampane, 1-5 parts of poria cocos and 1-3 parts of alum. The rice washing water used by the romaine lettuce soilless culture nutrient liquid is rich in nitrogen, phosphor, potassium and various trace elements needed for the growth of romaine lettuce; the elecampane and the poria cocos can be added to promote the romaine lettuce to evenly and comprehensively absorb trace elements, and to promote the growth and the root system development of the romaine lettuce, so that the plant resistance is strengthened, the occurrence of physiological diseases is prevented; the nutrition of the romaine lettuce soilless culture nutrient liquid well exceeds nutrients which can be provided by the soil, and thus, the romaine lettuce soilless culture nutrient liquid is relatively beneficial to the growth of the romaine lettuce; and the grown romaine lettuce is completely filled, crisp and tasty in fruit, bright-colored in lettuce leaf and good in quality.

Description

A kind of cos lettuce soilless culture nutrient fluid and preparation method thereof

Technical field

The invention belongs to plant soil-less culturing nutrient liquid technical field, be specifically related to a kind of cos lettuce soilless culture nutrient fluid and preparation method thereof.

Background technology

The new plant that cos lettuce is introduced in the eighties as China, plantation distribution China various places, although it is not long to enter China's time, but be popular, cos lettuce not only rhizome position is fond of eating, its asparagus lettuce leaf also can mix cold dish or fry, plantation cos lettuce should be ensured the quality of products, also to devote exclusive attention to output, make maximizing the benefits, fertilizer major part Dou Shi peasant household oneself configuration in current cos lettuce plantation, it is bad that preparation extensive like this can cause the ratio of the element in fertilizer and each element to be grasped, do not reach the effect of optimization, lead the waste of stagnant fertilizer, and cos lettuce can be caused to yield poorly, the adverse consequences of deficiency in economic performance.

Summary of the invention

For solving the problem, the invention discloses a kind of cos lettuce soilless culture nutrient fluid and preparation method thereof, the cos lettuce soilless culture nutrient fluid produced can make completely filled fruit, and lettuce leaves is bright in colour, and resistance against diseases is strong.

A kind of cos lettuce soilless culture nutrient fluid, it is characterized in that: described nutritive medium is composed of the following components according to mass percent: washing water of rice 250-350 part, urea 2-5 part, nitrocalcite 1-5 part, saltpetre 1-5 part, potassium primary phosphate 1-3 part, potassium sulfate 1-6 part, magnesium sulfate 0.5-2 part, chelated iron 0.1-0.5 part, borax 0.2-2 part, Sodium orthomolybdate 1-5 part, banksia rose 2-8 part, Poria cocos 1-5 part, alum 1-3 part.

As a modification of the present invention, the pH value of described washing water of rice is 5.8-6.8.

A preparation method for cos lettuce soilless culture nutrient fluid, is characterized in that: comprise the following steps:

(1) alum is added sedimentation in washing water of rice, filtration;

(2) banksia rose is added in the half washing water of rice after step (1), heat and add urea, nitrocalcite, saltpetre, chelated iron after 30-50 minute, filter after stirring, form solution A;

(3) Poria cocos, borax are mixed with second half washing water of rice, heat and add potassium sulfate, magnesium sulfate, Sodium orthomolybdate after 40-60 minute, filter after stirring, form B solution.

When using nutritive medium, in liquid supply box, put into 50-100 water doubly, first that solution A is water-soluble, then B solution is slowly added, measure pH value at any time, stop when pH value reaches 7.2-7.5 adding, measure specific conductivity, can use after up to standard.

The invention has the beneficial effects as follows:

A kind of cos lettuce soilless culture nutrient fluid of the present invention utilizes washing water of rice to replace original rainwater or pure water, washing water of rice is rich in the nitrogen needed for cos lettuce growth, phosphorus, potassium and various trace elements, coordinate the banksia rose in addition, Poria cocos, can promote that cos lettuce is balanced, overall absorption trace element, promote its growth and root system development, strengthen plant resistant power, prevent the generation of physiological disturbance, its nutrition far exceedes the nutrient that soil can supply, more be conducive to the growth of cos lettuce, the cos lettuce completely filled fruit grown, sharp and clear, lettuce leaves is bright in colour, quality better.

Embodiment

Embodiment 1

A kind of cos lettuce soilless culture nutrient fluid, described nutritive medium is composed of the following components according to mass percent: washing water of rice 280 parts, 4 parts, urea, 5 parts, nitrocalcite, 3 parts, saltpetre, potassium primary phosphate 2 parts, potassium sulfate 4 parts, 0.6 part, magnesium sulfate, chelated iron 0.2 part, borax 1 part, Sodium orthomolybdate 2 parts, the banksia rose 3 parts, 2 parts, Poria cocos, 3 parts, alum.

The pH value of washing water of rice described in the present embodiment is 6.5.

A preparation method for cos lettuce soilless culture nutrient fluid, comprises the following steps:

(1) alum is added sedimentation in washing water of rice, filtration;

(2) added by the banksia rose in the half washing water of rice after step (1), 60 DEG C of heating added urea, nitrocalcite, saltpetre, chelated iron after 40 minutes, filtered after stirring, and formed solution A;

(3) Poria cocos, borax are mixed with second half washing water of rice, 55 DEG C of heating added potassium sulfate, magnesium sulfate, Sodium orthomolybdate after 50 minutes, filtered after stirring, and formed B solution.

When using nutritive medium, the water of 50 times is put in liquid supply box, first that solution A is water-soluble, then B solution is slowly added, stop adding when pH value reaches 7.3, measure specific conductivity, rear use up to standard, the cos lettuce ripening stage that nutritive medium kind goes out shifts to an earlier date 7 days, resistance against diseases improves 75%, nitrogen content increase by 14.98% in cos lettuce, phosphorus content increase by 11.72%, potassium content increase by 11.49%, and mouthfeel is better, and product are better mutually.

Embodiment 2

A kind of cos lettuce soilless culture nutrient fluid, described nutritive medium is composed of the following components according to mass percent: washing water of rice 300 parts, 4 parts, urea, 3 parts, nitrocalcite, 4 parts, saltpetre, potassium primary phosphate 2 parts, potassium sulfate 6 parts, 1 part, magnesium sulfate, chelated iron 0.4 part, borax 1.5 parts, Sodium orthomolybdate 4 parts, the banksia rose 7 parts, 4 parts, Poria cocos, 1 part, alum.

The pH value of washing water of rice described in the present embodiment is 6.6.

A preparation method for cos lettuce soilless culture nutrient fluid, comprises the following steps:

(1) alum is added sedimentation in washing water of rice, filtration;

(2) added by the banksia rose in the half washing water of rice after step (1), 65 DEG C of heating added urea, nitrocalcite, saltpetre, chelated iron after 45 minutes, filtered after stirring, and formed solution A;

(3) Poria cocos, borax are mixed with second half washing water of rice, 50 DEG C of heating added potassium sulfate, magnesium sulfate, Sodium orthomolybdate after 60 minutes, filtered after stirring, and formed B solution.

When using nutritive medium, the water of 80 times is put in liquid supply box, first that solution A is water-soluble, then B solution is slowly added, stop adding when pH value reaches 7.4, measure specific conductivity, rear use up to standard, the cos lettuce ripening stage that nutritive medium kind goes out shifts to an earlier date 8 days, resistance against diseases improves 80%, nitrogen content increase by 13.64% in cos lettuce, phosphorus content increase by 13.58%, potassium content increase by 12.37%, and mouthfeel is better, and product are better mutually.

Claims (3)

1. a cos lettuce soilless culture nutrient fluid, it is characterized in that: described nutritive medium is composed of the following components according to mass percent: washing water of rice 250-350 part, urea 2-5 part, nitrocalcite 1-5 part, saltpetre 1-5 part, potassium primary phosphate 1-3 part, potassium sulfate 1-6 part, magnesium sulfate 0.5-2 part, chelated iron 0.1-0.5 part, borax 0.2-2 part, Sodium orthomolybdate 1-5 part, banksia rose 2-8 part, Poria cocos 1-5 part, alum 1-3 part.

2. a kind of cos lettuce soilless culture nutrient fluid according to claim 1, is characterized in that: the pH value of described washing water of rice is 5.8-6.8.

3. a preparation method for cos lettuce soilless culture nutrient fluid, is characterized in that: comprise the following steps:

(1) alum is added sedimentation in washing water of rice, filtration;

(2) banksia rose is added in the half washing water of rice after step (1), heat and add urea, nitrocalcite, saltpetre, chelated iron after 30-50 minute, filter after stirring, form solution A;

(3) Poria cocos, borax are mixed with second half washing water of rice, heat and add potassium sulfate, magnesium sulfate, Sodium orthomolybdate after 40-60 minute, filter after stirring, form B solution.