Water-culturing rice seedling raising nutrient solution and preparation method thereof

A nutrient solution and rice technology, applied in the agricultural field, can solve problems such as increased cost, overage of seedlings, and impact on the development of mechanized transplanting

Active Publication Date: 2012-07-04
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The machine-transplanted rice seedlings that are popularized and applied in my country use plastic trays to cultivate standard seedlings. There are some difficulties. First, the standard rate of seedling cultivation is not high, and problems such as poor seedling quality, insufficient seedlings, and overage of seedling

Method used

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  • Water-culturing rice seedling raising nutrient solution and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The nutrient solution for rice water-cultivated seedlings is counted in parts by volume, 5 parts of nutrient solution mother liquid, and 95 parts of water; the pH value of the nutrient solution for rice water-cultivated seedlings is adjusted by dilute HCl to 5.

[0026] Components of mother solution per liter of nutrient solution: H 3 BO 3 284.4mg·L -1 , CuSO 4 .5H 2 O 7.5mg·L -1 , ZnSO 4 .7H 2 O 23mg·L -1 , MnCl 2 .4H 2 O 178.1mg·L -1 , Na 2 MoO 4 .2H 2 O 2.4mg·L -1 , Na 2 SiO 3 .9H 2 O 19.21g·L -1 , Fe-EDTA 7.5g·L -1 , KCl 7.46g L -1 , CaCl 2 7.71g·L -1 , MgSO 4 .7H 2 O 6.61g·L -1 , KH 2 PO 4 2.72g·L -1 , NH 4 NO 3 17.15g·L -1 , and the rest is water.

[0027] The preparation method of the nutrient solution is as follows: firstly dissolving each component in water respectively, then mixing uniformly, and constant volume to obtain a nutrient solution mother solution; then mixing the mother solution and water uniformly in proportion.

Embodiment 2

[0029] The nutrient solution for rice seedling cultivation in water is counted in parts by volume, the mother liquid of nutrient solution accounts for 5.5 parts, and the water accounts for 94.5 parts; dilute NaOH adjusts the pH value of the nutrient solution for rice seedling cultivation in water to 5.5.

[0030] Components of mother solution per liter of nutrient solution: H 3 BO 3 298.5mg·L -1 , CuSO 4 .5H 2 O 9.5mg·L -1 , ZnSO 4 .7H 2 O28mg·L -1 , MnCl 2 .4H 2 O 150mg·L -1 , Na 2 MoO 4 .2H 2 O 5mg·L -1 , Na 2 SiO 3 .9H 2 O 17g L -1 , Fe-EDTA 8g·L -1 , KCl 6g·L -1 , CaCl 2 9g·L -1 , MgSO 4 .7H 2 O 7.8g·L -1 , KH 2 PO 4 3.7g·L -1 , NH 4 NO 3 19g·L -1 , and the rest is water.

[0031] The preparation method of the nutrient solution is as follows: firstly dissolving each component in water respectively, then mixing uniformly, and constant volume to obtain a nutrient solution mother solution; then mixing the mother solution and water uniformly i...

Embodiment 3

[0033] The nutrient solution for rice seedling cultivation in water is counted in parts by volume, the mother liquid of nutrient solution accounts for 5.5 parts, and the water accounts for 94.5 parts; dilute HCl adjusts the pH value of the nutrient solution for rice seedling cultivation in water to 4.5.

[0034] Components of mother solution per liter of nutrient solution: H 3 BO 3 260.5mg·L -1 , CuSO 4 .5H 2 O 5.5mg·L -1 , ZnSO 4 .7H 2 O28mg·L -1 , MnCl 2 .4H 2 O 190.5mg·L -1 , Na 2 MoO 4 .2H 2 O 3.6mg·L -1 , Na 2 SiO 3 .9H 2 O 18.91g·L -1 , Fe-EDTA 9g·L -1 , KCl 7.46g L -1 , CaCl 2 6.5g·L -1 , MgSO 4 .7H 2 O 6g·L -1 , KH 2 PO 4 1.5g·L -1 , NH 4 NO 3 18g·L -1 , and the rest is water.

[0035] The preparation method of the nutrient solution is as follows: firstly dissolving each component in water respectively, then mixing uniformly, and constant volume to obtain a nutrient solution mother solution; then mixing the mother solution and water u...

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Abstract

The invention belongs to the technical field of agriculture, and particular relates to a water-culturing rice seedling raising nutrient solution and a preparation method thereof. The nutrient solution contains elements B, Cu, Zn, Mn, Mo, Si, Fe, K, Ca, Mg, P and N in the ratio of (43.6-52.6):(1.2-2.6):(4.4-6.9):(41.5-55.6):(0.3-2.0):(1670-1990):(1200-1500):(3400-5900):(2160-3260):(480-790):(220-920):(5600-17500); and the pH value of the nutrient solution is 4.5-5.5. A water-culturing rice seedling raising nutrient solution formula and the preparation method are easy, raw materials are sufficient, implementation is easy, and the problem of nutrient supply to industrial production rice seedlings with a water culturing method is solved.

Description

technical field [0001] The invention belongs to the field of agricultural technology, relates to plant nutrition and fertilizer technology, in particular to a nutrient solution for rice seedling cultivation by water and a preparation method thereof. Background technique [0002] The machine-transplanted rice seedlings that are popularized and applied in my country use plastic trays to cultivate standard seedlings. There are some difficulties. First, the standard rate of seedling cultivation is not high, and problems such as poor seedling quality, insufficient seedlings, and overage of seedlings are prone to occur; the second is plastic tray seedlings. Every mu of field all needs to carry out about 250kg soil (not including moisture) from seedling field with the handling of seedling, labor intensity is big, and the cost of transportation increases, has influenced the development of mechanized rice transplanting. [0003] Hydroponic nutrient solution is a new type of hydroponic...

Claims

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Application Information

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IPC IPC(8): C05G1/00
Inventor 丁艳锋王绍华李刚华刘正辉王强盛李玉祥雷武生赵云
Owner NANJING AGRICULTURAL UNIVERSITY
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