CN112369175A - Fertilizing method for selenium-enriched rice - Google Patents
Fertilizing method for selenium-enriched rice Download PDFInfo
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- CN112369175A CN112369175A CN202011124096.4A CN202011124096A CN112369175A CN 112369175 A CN112369175 A CN 112369175A CN 202011124096 A CN202011124096 A CN 202011124096A CN 112369175 A CN112369175 A CN 112369175A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
- A01G22/22—Rice
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Abstract
The invention discloses a fertilizing method of selenium-enriched rice, which comprises the following steps: selecting a cultivation land block; seed pretreatment: soaking the seeds in selenium-containing culture solution at 30-50 deg.C for 6-10 hr, mixing the seeds with nutrient soil, and sowing; fertilizing in the seedling raising period: before sowing, applying 80-110 kg/mu of base fertilizer in a nursery; fertilizing in a transplanting period: before transplanting, applying 450-650 kg/mu of base fertilizer in a cultivation land, transplanting for 6-8 days, and additionally applying urea, phosphate fertilizer and selenium-containing fertilizer; fertilization in a jointing stage: in the later period of jointing, dressing rape seed cake, urea, phosphate fertilizer, potash fertilizer and selenium-containing fertilizer; fertilizing in heading stage: spraying the selenium-rich nutrient solution once in 8-12 days of ear sprouting of the rice, and spraying the selenium-rich nutrient solution once in 22-27 days of ear sprouting of the rice. The method is simple and convenient, is suitable for industrial application, can effectively ensure the content of selenium in the selenium-enriched rice, improves the yield of the selenium-enriched rice, reduces unnecessary fertilizer and labor waste, and improves the economic benefit of producing the selenium-enriched rice.
Description
Technical Field
The invention relates to the technical field of rice planting, in particular to a fertilizing method for selenium-rich rice.
Background
Selenium is a necessary trace element for human bodies, and a large number of clinical experiments at home and abroad prove that the selenium deficiency of human bodies can cause dysfunction of certain important organs to cause a plurality of serious diseases, more than 40 countries all over the world are in selenium deficiency areas, 22 provinces of hundreds of millions of people in China are in selenium deficiency or low selenium zones, and the incidence rates of tumors, liver diseases, cardiovascular diseases and the like of the population in the areas are high.
Research shows that the people with low selenium or selenium deficiency can prevent tumor, liver disease, etc. by supplementing selenium with proper amount, improve immunity, maintain normal functions of heart, liver, lung, stomach and other important organs, and prevent senile cardiovascular and cerebrovascular diseases.
There are three main ways to supplement selenium for human body: the selenium element in the health care products such as the zinc selenium double-core tablets, the double-health decoction tablets, the selenium-rich yeast tablets of the American and Australia health and the like is rich and can be easily absorbed by the human body, so that the requirement of the body for supplementing the selenium element can be met, but the method is generally high in price; the mode of supplementing selenium by using the medicine is quick in effect, but many people think that the medicine can have some toxic and side effects, so that if the body of the people does not have the serious condition that the selenium element is lack, the people cannot easily select the medicine to supplement the selenium element; the food selenium supplement, namely the daily selenium supplement requirement is met by eating the food with rich selenium element, the mode not only has the advantage of easy obtainment, but also can avoid the toxic and side effect of the medicine, and is an economic, safe, efficient and convenient selenium supplement way.
The rice is one of the most important grain crops in the world, has the characteristics of large yield and high universality, meets the daily selenium supplement requirement of people by producing the selenium-rich rice, and can effectively reduce the selenium supplement cost.
In the production process of the selenium-rich rice, fertilization is an important link of cultivation management. At present, the fertilizing technology of selenium-enriched rice has a plurality of problems, such as the balanced fertilization cannot be realized, the reasonable scientific and technical guidance for precise fertilization and timely fertilization is lacked, and the problems often cause unnecessary waste of fertilizers and manpower, so that the rice yield is reduced, the selenium content in the rice is reduced, and the economic benefit is seriously influenced.
Therefore, how to provide a fertilizing method for selenium-enriched rice, thereby ensuring the content of selenium in the selenium-enriched rice and improving the yield of the selenium-enriched rice, becomes a technical problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
In order to solve the technical problems, the invention provides a fertilizing method for selenium-enriched rice, which is simple and convenient, is suitable for industrial application, can effectively ensure the content of selenium in the selenium-enriched rice, improves the yield of the selenium-enriched rice, reduces unnecessary fertilizer and labor waste, and improves the economic benefit of producing the selenium-enriched rice.
The invention discloses a fertilizing method of selenium-enriched rice, which comprises the following steps:
selecting a cultivation land block: selecting a plot which is high and flat in terrain, leeward and sunny, close to a water source, fertile in soil, good in water and air permeability, water and fertilizer retention and convenient to irrigate and discharge;
seed pretreatment: soaking the seeds in selenium-containing culture solution at 30-50 deg.C for 6-10 hr, mixing the seeds with nutrient soil, and sowing;
fertilizing in the seedling raising period: before sowing, applying 80-110 kg/mu of base fertilizer in a nursery garden, wherein the base fertilizer comprises 15-55 parts by weight of urea, 13-19 parts by weight of diammonium phosphate, 5-14 parts by weight of amino acid, 14-23 parts by weight of nitrogen phosphorus potassium fertilizer and 19-38 parts by weight of fermented organic matter, sowing for 2-3 days, and additionally adding 30-60 mg/mu of selenium-containing fertilizer;
fertilizing in a transplanting period: before transplanting, applying 650 kg/mu of 450-650kg base fertilizer in a cultivation land, transplanting for 6-8 days, and additionally applying 5-8 kg/mu of urea, 3-7 kg/mu of phosphate fertilizer and 70-90 mg/mu of selenium-containing fertilizer;
fertilization in a jointing stage: in the later period of jointing, 12-16 kg/mu of rape seed cake, 6-8 kg/mu of urea, 10-12 kg/mu of phosphate fertilizer, 5-7 kg/mu of potash fertilizer and 120 mg/mu of selenium-containing fertilizer are applied additionally;
fertilizing in heading stage: spraying selenium-rich nutrient solution once per 80-120L/mu in 8-12 days of rice heading, and spraying selenium-rich nutrient solution once per 40-60L/mu in 22-27 days of rice heading.
Preferably, the cultivation density of the seedlings in the transplanting process is 23cm multiplied by 10cm to 30cm multiplied by 18 cm.
Preferably, the cultivation density of the seedlings in the transplanting process is 28cm multiplied by 10cm to 32cm multiplied by 10 cm.
Preferably, the cultivation density of the seedlings in the transplanting process is 30cm multiplied by 10 cm.
Preferably, the selenium-containing culture solution comprises the following raw materials in parts by weight: 18-26 parts of sodium selenite, 22-28 parts of ferrous sulfate, 6-10 parts of magnesium sulfate, 3-5 parts of copper sulfate, 7-10 parts of potassium chloride, 10-15 parts of calcium hydrophosphate, 8-11 parts of monopotassium phosphate, 10-13 parts of diammonium hydrogen phosphate and 150-200 parts of water.
Preferably, the selenium-containing culture solution comprises the following raw materials in parts by weight: 20-22 parts of sodium selenite, 24-26 parts of ferrous sulfate, 8 parts of magnesium sulfate, 4 parts of copper sulfate, 8 parts of potassium chloride, 12 parts of calcium hydrophosphate, 9 parts of monopotassium phosphate, 11 parts of diammonium hydrogen phosphate and 180-200 parts of water.
Preferably, the selenium-containing fertilizer comprises the following raw materials in parts by weight: 16-18 parts of urea, 27-30 parts of ammonium bicarbonate, 7-11 parts of calcium superphosphate, 6-20 parts of potassium chloride, 8-14 parts of amino acid, 30-40 parts of plant ash, 15-25 parts of buckwheat hulls and 10-15 parts of decomposed vinasse.
Preferably, the selenium-containing fertilizer comprises the following raw materials in parts by weight: 17 parts of urea, 29 parts of ammonium bicarbonate, 8 parts of calcium superphosphate, 14-18 parts of potassium chloride, 8-12 parts of amino acid, 35-38 parts of plant ash, 18-22 parts of buckwheat hulls and 12-14 parts of decomposed vinasse.
Preferably, the nutrient soil comprises the following raw materials in parts by weight: 80-100 parts of coconut coir, 40-50 parts of peat soil, 10-20 parts of perlite, 5-10 parts of vermiculite, 20-30 parts of decomposed bio-organic fertilizer and 5-10 parts of attapulgite.
Preferably, the fermented organic matter is obtained by mixing and fermenting animal wastes.
According to the fertilizing method for the selenium-rich rice, provided by the invention, the cultivation land which is good in environment and suitable for rice growth is selected, so that the healthy growth of the rice can be guaranteed, and the rice yield is increased. Meanwhile, the method can improve the tolerance of the rice to the selenium element and promote the effective absorption of the rice to the selenium element by pretreating the seeds. In addition, according to the production characteristics of the rice in each growth stage, the invention accurately topdresses the rice, supplements the selenium element, keeps the rice to absorb the selenium element, effectively reduces the waste of selenium fertilizer, and obtains the selenium-enriched rice with high yield per mu and rich selenium element.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The invention discloses a fertilizing method of selenium-enriched rice, which comprises the following steps:
selecting a cultivation land block: selecting a plot which is high and flat in terrain, leeward and sunny, close to a water source, fertile in soil, good in water and air permeability, water and fertilizer retention and convenient to irrigate and discharge;
seed pretreatment: soaking the seeds in selenium-containing culture solution at 30-50 deg.C for 6-10 hr, mixing the seeds with nutrient soil, and sowing;
fertilizing in the seedling raising period: before sowing, applying 80-110 kg/mu of base fertilizer in a nursery garden, wherein the base fertilizer comprises 15-55 parts by weight of urea, 13-19 parts by weight of diammonium phosphate, 5-14 parts by weight of amino acid, 14-23 parts by weight of nitrogen phosphorus potassium fertilizer and 19-38 parts by weight of fermented organic matter, sowing for 2-3 days, and additionally adding 30-60 mg/mu of selenium-containing fertilizer;
fertilizing in a transplanting period: before transplanting, applying 650 kg/mu of 450-650kg base fertilizer in a cultivation land, transplanting for 6-8 days, and additionally applying 5-8 kg/mu of urea, 3-7 kg/mu of phosphate fertilizer and 70-90 mg/mu of selenium-containing fertilizer;
fertilization in a jointing stage: in the later period of jointing, 12-16 kg/mu of rape seed cake, 6-8 kg/mu of urea, 10-12 kg/mu of phosphate fertilizer, 5-7 kg/mu of potash fertilizer and 120 mg/mu of selenium-containing fertilizer are applied additionally;
fertilizing in heading stage: spraying selenium-rich nutrient solution once per 80-120L/mu in 8-12 days of rice heading, and spraying selenium-rich nutrient solution once per 40-60L/mu in 22-27 days of rice heading.
Preferably, the density of the seedlings is 23cm × 10cm-30cm × 18cm during transplanting.
By adopting the proper cultivation density, the invention can effectively improve the yield of the selenium-enriched rice.
Preferably, the density of the seedlings is 28cm × 10cm to 32cm × 10cm during transplanting.
Preferably, the density of the seedlings in the transplanting process is 30cm × 10 cm.
Preferably, the selenium-containing culture solution comprises the following raw materials in parts by weight: 18-26 parts of sodium selenite, 22-28 parts of ferrous sulfate, 6-10 parts of magnesium sulfate, 3-5 parts of copper sulfate, 7-10 parts of potassium chloride, 10-15 parts of calcium hydrophosphate, 8-11 parts of monopotassium phosphate, 10-13 parts of diammonium hydrogen phosphate and 150-200 parts of water.
Preferably, the selenium-containing culture solution comprises the following raw materials in parts by weight: 20-22 parts of sodium selenite, 24-26 parts of ferrous sulfate, 8 parts of magnesium sulfate, 4 parts of copper sulfate, 8 parts of potassium chloride, 12 parts of calcium hydrophosphate, 9 parts of monopotassium phosphate, 11 parts of diammonium hydrogen phosphate and 180-200 parts of water.
Preferably, the selenium-containing fertilizer comprises the following raw materials in parts by weight: 16-18 parts of urea, 27-30 parts of ammonium bicarbonate, 7-11 parts of calcium superphosphate, 6-20 parts of potassium chloride, 8-14 parts of amino acid, 30-40 parts of plant ash, 15-25 parts of buckwheat hulls and 10-15 parts of decomposed vinasse.
Preferably, the selenium-containing fertilizer comprises the following raw materials in parts by weight: 17 parts of urea, 29 parts of ammonium bicarbonate, 8 parts of calcium superphosphate, 14-18 parts of potassium chloride, 8-12 parts of amino acid, 35-38 parts of plant ash, 18-22 parts of buckwheat hulls and 12-14 parts of decomposed vinasse.
Preferably, the nutrient soil comprises the following raw materials in parts by weight: 80-100 parts of coconut coir, 40-50 parts of peat soil, 10-20 parts of perlite, 5-10 parts of vermiculite, 20-30 parts of decomposed bio-organic fertilizer and 5-10 parts of attapulgite.
Coconut chaff and peat soil are added into the nutrient soil, so that the nutrient soil has good air permeability and water retention; the biological organic fertilizer is added as a nutrient source in the nutrient soil, has comprehensive nutrient elements and lasting fertilizer effect, and can continuously provide nutrients for seeds.
Preferably, the fermented organic matter is obtained by mixed fermentation of animal wastes.
Example 1
A fertilizing method of selenium-enriched rice comprises the following steps:
selecting a cultivation land block: selecting a plot which is high and flat in terrain, leeward and sunny, close to a water source, fertile in soil, good in water and air permeability, water and fertilizer retention and convenient to irrigate and discharge;
seed pretreatment: soaking the seeds in selenium-containing culture solution at 50 deg.C for 6 hr, mixing the seeds with nutrient soil, and sowing;
fertilizing in the seedling raising period: before sowing, applying 80 kg/mu of base fertilizer in a nursery garden, wherein the base fertilizer comprises 15 parts by weight of urea, 19 parts by weight of diamine phosphate, 14 parts by weight of amino acid, 23 parts by weight of nitrogen phosphorus potassium fertilizer and 38 parts by weight of fermented organic matter, sowing for 2 days, and additionally adding 60 mg/mu of selenium-containing fertilizer;
fertilizing in a transplanting period: before transplanting, applying 450 kg/mu of base fertilizer in a cultivation land, transplanting for 6 days, and additionally applying 5 kg/mu of urea, 7 kg/mu of phosphate fertilizer and 90 mg/mu of selenium-containing fertilizer;
fertilization in a jointing stage: in the later stage of jointing, 12 kg/mu of rape seed cakes, 6 kg/mu of urea, 10 kg/mu of phosphate fertilizer, 5 kg/mu of potash fertilizer and 120 mg/mu of selenium-containing fertilizer are applied;
fertilizing in heading stage: spraying the selenium-rich nutrient solution once according to 80 liters/mu in 8 days of ear sprouting of the rice, and spraying the selenium-rich nutrient solution once according to 40 liters/mu in 22 days of ear sprouting of the rice.
Example 2
A fertilizing method of selenium-enriched rice comprises the following steps:
selecting a cultivation land block: selecting a plot which is high and flat in terrain, leeward and sunny, close to a water source, fertile in soil, good in water and air permeability, water and fertilizer retention and convenient to irrigate and discharge;
seed pretreatment: soaking the seeds in selenium-containing culture solution at 30 deg.C for 10h, mixing the seeds with nutrient soil, and sowing; the selenium-containing culture solution comprises the following raw materials in parts by weight: 21 parts of sodium selenite, 25 parts of ferrous sulfate, 8 parts of magnesium sulfate, 4 parts of copper sulfate, 8 parts of potassium chloride, 12 parts of calcium hydrophosphate, 9 parts of monopotassium phosphate, 11 parts of diammonium phosphate and 190 parts of water;
fertilizing in the seedling raising period: before sowing, applying 110 kg/mu of base fertilizer in a nursery garden, wherein the base fertilizer comprises 55 parts by weight of urea, 13 parts by weight of diamine phosphate, 5 parts by weight of amino acid, 14 parts by weight of nitrogen phosphorus potassium fertilizer and 19 parts by weight of fermented organic matter, sowing for 3 days, and additionally adding 60 mg/mu of selenium-containing fertilizer; the selenium-containing fertilizer comprises the following raw materials in parts by weight: 17 parts of urea, 29 parts of ammonium bicarbonate, 8 parts of calcium superphosphate, 15 parts of potassium chloride, 10 parts of amino acid, 37 parts of plant ash, 20 parts of buckwheat hulls and 13 parts of decomposed vinasse;
fertilizing in a transplanting period: before transplanting, 650 kg/mu of base fertilizer is applied to a cultivation land, 8 days of transplanting are carried out, 8 kg/mu of urea, 3 kg/mu of phosphate fertilizer and 70 mg/mu of selenium-containing fertilizer are additionally applied;
in the transplanting process, the cultivation density of the seedlings is 30cm multiplied by 10 cm;
fertilization in a jointing stage: in the later stage of jointing, 16 kg/mu of rape seed cakes, 8 kg/mu of urea, 12 kg/mu of phosphate fertilizer, 7 kg/mu of potash fertilizer and 160 mg/mu of selenium-containing fertilizer are applied;
fertilizing in heading stage: spraying the selenium-rich nutrient solution once according to 120 liters/mu in 12 days of ear sprouting of the rice, and spraying the selenium-rich nutrient solution once according to 60 liters/mu in 27 days of ear sprouting of the rice.
Example 3
A fertilizing method of selenium-enriched rice comprises the following steps:
selecting a cultivation land block: selecting a plot which is high and flat in terrain, leeward and sunny, close to a water source, fertile in soil, good in water and air permeability, water and fertilizer retention and convenient to irrigate and discharge;
seed pretreatment: soaking the seeds in selenium-containing culture solution at 40 deg.C for 8 hr, mixing the seeds with nutrient soil, and sowing; the selenium-containing culture solution comprises the following raw materials in parts by weight: 18 parts of sodium selenite, 22 parts of ferrous sulfate, 6 parts of magnesium sulfate, 3 parts of copper sulfate, 7 parts of potassium chloride, 10 parts of calcium hydrophosphate, 8 parts of monopotassium phosphate, 10 parts of diammonium phosphate and 150 parts of water; the nutrient soil comprises the following raw materials in parts by weight: 80 parts of coconut coir, 40 parts of peat soil, 10 parts of perlite, 5 parts of vermiculite, 20 parts of decomposed bio-organic fertilizer and 5 parts of attapulgite;
fertilizing in the seedling raising period: before sowing, applying 95 kg/mu of base fertilizer in a nursery garden, wherein the base fertilizer comprises 35 parts by weight of urea, 16 parts by weight of diamine phosphate, 8 parts by weight of amino acid, 18 parts by weight of nitrogen phosphorus potassium fertilizer and 30 parts by weight of fermented organic matter, sowing for 3 days, and additionally adding 45 mg/mu of selenium-containing fertilizer; the selenium-containing fertilizer comprises the following raw materials in parts by weight: 16 parts of urea, 27 parts of ammonium bicarbonate, 7 parts of calcium superphosphate, 6 parts of potassium chloride, 8 parts of amino acid, 30 parts of plant ash, 15 parts of buckwheat hulls and 10 parts of decomposed vinasse;
fertilizing in a transplanting period: before transplanting, applying 500 kg/mu of base fertilizer in a cultivation land, transplanting for 7 days, and additionally applying 6 kg/mu of urea, 5 kg/mu of phosphate fertilizer and 80 mg/mu of selenium-containing fertilizer;
in the transplanting process, the cultivation density of the seedlings is 23cm multiplied by 10 cm;
fertilization in a jointing stage: in the later stage of jointing, additionally applying 14 kg/mu of rape seed cakes, 7 kg/mu of urea, 11 kg/mu of phosphate fertilizer, 6 kg/mu of potash fertilizer and 140 mg/mu of selenium-containing fertilizer;
fertilizing in heading stage: spraying selenium-rich nutrient solution once according to 98 liters/mu in 10 days of ear sprouting of rice, and spraying selenium-rich nutrient solution once according to 44 liters/mu in 24 days of ear sprouting of rice.
Example 4
A fertilizing method of selenium-enriched rice comprises the following steps:
selecting a cultivation land block: selecting a plot which is high and flat in terrain, leeward and sunny, close to a water source, fertile in soil, good in water and air permeability, water and fertilizer retention and convenient to irrigate and discharge;
seed pretreatment: soaking the seeds in selenium-containing culture solution at 42 deg.C for 7 hr, mixing the seeds with nutrient soil, and sowing; the selenium-containing culture solution comprises the following raw materials in parts by weight: 26 parts of sodium selenite, 28 parts of ferrous sulfate, 10 parts of magnesium sulfate, 5 parts of copper sulfate, 10 parts of potassium chloride, 15 parts of calcium hydrophosphate, 11 parts of monopotassium phosphate, 13 parts of diammonium phosphate and 200 parts of water; the nutrient soil comprises the following raw materials in parts by weight: 100 parts of coconut coir, 50 parts of peat soil, 20 parts of perlite, 10 parts of vermiculite, 30 parts of decomposed bio-organic fertilizer and 10 parts of attapulgite;
fertilizing in the seedling raising period: before sowing, applying 85 kg/mu of base fertilizer in a nursery garden, wherein the base fertilizer comprises 40 parts by weight of urea, 15 parts by weight of diamine phosphate, 9 parts by weight of amino acid, 20 parts by weight of nitrogen, phosphorus and potassium fertilizer and 31 parts by weight of fermented organic matter, sowing for 3 days, and adding 55 mg/mu of selenium-containing fertilizer; the selenium-containing fertilizer comprises the following raw materials in parts by weight: 18 parts of urea, 30 parts of ammonium bicarbonate, 11 parts of calcium superphosphate, 20 parts of potassium chloride, 14 parts of amino acid, 40 parts of plant ash, 25 parts of buckwheat hulls and 15 parts of decomposed vinasse;
fertilizing in a transplanting period: before transplanting, 480 kg/mu of base fertilizer is applied to a cultivation land, 8 days of transplanting are carried out, 6 kg/mu of urea, 4 kg/mu of phosphate fertilizer and 85 mg/mu of selenium-containing fertilizer are additionally applied;
in the transplanting process, the cultivation density of the seedlings is 30cm multiplied by 18 cm;
fertilization in a jointing stage: in the later stage of jointing, additionally applying 15 kg/mu of rape seed cakes, 8 kg/mu of urea, 10 kg/mu of phosphate fertilizer, 5 kg/mu of potash fertilizer and 145 mg/mu of selenium-containing fertilizer;
fertilizing in heading stage: spraying the selenium-rich nutrient solution once according to 115 liters/mu in a paddy ear sprouting period of 9 days, and spraying the selenium-rich nutrient solution once according to 48 liters/mu in a paddy ear sprouting period of 26 days.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts in the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A fertilizing method for selenium-enriched rice is characterized by comprising the following steps:
selecting a cultivation land block: selecting a plot which is high and flat in terrain, leeward and sunny, close to a water source, fertile in soil, good in water and air permeability, water and fertilizer retention and convenient to irrigate and discharge;
seed pretreatment: soaking the seeds in selenium-containing culture solution at 30-50 deg.C for 6-10 hr, mixing the seeds with nutrient soil, and sowing;
fertilizing in the seedling raising period: before sowing, applying 80-110 kg/mu of base fertilizer in a nursery garden, wherein the base fertilizer comprises 15-55 parts by weight of urea, 13-19 parts by weight of diammonium phosphate, 5-14 parts by weight of amino acid, 14-23 parts by weight of nitrogen phosphorus potassium fertilizer and 19-38 parts by weight of fermented organic matter, sowing for 2-3 days, and additionally adding 30-60 mg/mu of selenium-containing fertilizer;
fertilizing in a transplanting period: before transplanting, applying 650 kg/mu of 450-650kg base fertilizer in a cultivation land, transplanting for 6-8 days, and additionally applying 5-8 kg/mu of urea, 3-7 kg/mu of phosphate fertilizer and 70-90 mg/mu of selenium-containing fertilizer;
fertilization in a jointing stage: in the later period of jointing, 12-16 kg/mu of rape seed cake, 6-8 kg/mu of urea, 10-12 kg/mu of phosphate fertilizer, 5-7 kg/mu of potash fertilizer and 120 mg/mu of selenium-containing fertilizer are applied additionally;
fertilizing in heading stage: spraying selenium-rich nutrient solution once per 80-120L/mu in 8-12 days of rice heading, and spraying selenium-rich nutrient solution once per 40-60L/mu in 22-27 days of rice heading.
2. The fertilizing method for selenium-enriched rice as claimed in claim 1, wherein the cultivation density of the seedlings during transplanting is 23cm x 10cm-30cm x 18 cm.
3. The fertilizing method for selenium-enriched rice as claimed in claim 2, wherein the cultivation density of the seedlings during transplanting is 28cm x 10cm-32cm x 10 cm.
4. The fertilizing method for selenium-enriched rice as claimed in claim 3, wherein the cultivation density of the seedlings during transplanting is 30cm x 10 cm.
5. The fertilizing method for selenium-enriched rice as claimed in any one of claims 1 to 4, wherein the selenium-containing culture solution comprises the following raw materials in parts by weight: 18-26 parts of sodium selenite, 22-28 parts of ferrous sulfate, 6-10 parts of magnesium sulfate, 3-5 parts of copper sulfate, 7-10 parts of potassium chloride, 10-15 parts of calcium hydrophosphate, 8-11 parts of monopotassium phosphate, 10-13 parts of diammonium hydrogen phosphate and 150-200 parts of water.
6. The fertilizing method for selenium-enriched rice as claimed in any one of claims 1 to 4, wherein the selenium-containing culture solution comprises the following raw materials in parts by weight: 20-22 parts of sodium selenite, 24-26 parts of ferrous sulfate, 8 parts of magnesium sulfate, 4 parts of copper sulfate, 8 parts of potassium chloride, 12 parts of calcium hydrophosphate, 9 parts of monopotassium phosphate, 11 parts of diammonium hydrogen phosphate and 180-200 parts of water.
7. The fertilizing method for selenium-enriched rice as claimed in claim 6, wherein the selenium-containing fertilizer comprises the following raw materials in parts by weight: 16-18 parts of urea, 27-30 parts of ammonium bicarbonate, 7-11 parts of calcium superphosphate, 6-20 parts of potassium chloride, 8-14 parts of amino acid, 30-40 parts of plant ash, 15-25 parts of buckwheat hulls and 10-15 parts of decomposed vinasse.
8. The fertilizing method for selenium-enriched rice as claimed in any one of claims 1 to 4, wherein the selenium-containing fertilizer comprises the following raw materials in parts by weight: 17 parts of urea, 29 parts of ammonium bicarbonate, 8 parts of calcium superphosphate, 14-18 parts of potassium chloride, 8-12 parts of amino acid, 35-38 parts of plant ash, 18-22 parts of buckwheat hulls and 12-14 parts of decomposed vinasse.
9. The fertilizing method for selenium-enriched rice as claimed in claim 8, wherein the nutrient soil comprises the following raw materials in parts by weight: 80-100 parts of coconut coir, 40-50 parts of peat soil, 10-20 parts of perlite, 5-10 parts of vermiculite, 20-30 parts of decomposed bio-organic fertilizer and 5-10 parts of attapulgite.
10. The method for fertilizing selenium-enriched rice as claimed in claim 1, wherein the fermented organic matter is obtained by mixing and fermenting animal wastes.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113121280A (en) * | 2021-04-13 | 2021-07-16 | 安徽珍硒农业科技有限责任公司 | Selenium-rich organic nutrient solution for cultivating rice and wheat and preparation method thereof |
| CN115380785A (en) * | 2022-10-13 | 2022-11-25 | 黑龙江省农业科学院耕作栽培研究所 | High-quality and high-yield planting method for rice |
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| CN106508541A (en) * | 2016-10-28 | 2017-03-22 | 广西中科群源农林科技有限公司 | Planting method of selenium-enriched paddy |
| CN106699284A (en) * | 2016-11-28 | 2017-05-24 | 宁夏兴唐米业集团有限公司 | Rice fertilizing method for producing selenium-rich rice |
| CN107278418A (en) * | 2017-07-26 | 2017-10-24 | 安徽省福宁米业有限公司 | A kind of vernalization, the method for cultivating rice seedling |
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| CN108575672A (en) * | 2018-07-20 | 2018-09-28 | 浙江省农业科学院 | A kind of rice seedling raising ground substance and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113121280A (en) * | 2021-04-13 | 2021-07-16 | 安徽珍硒农业科技有限责任公司 | Selenium-rich organic nutrient solution for cultivating rice and wheat and preparation method thereof |
| CN115380785A (en) * | 2022-10-13 | 2022-11-25 | 黑龙江省农业科学院耕作栽培研究所 | High-quality and high-yield planting method for rice |
| CN115380785B (en) * | 2022-10-13 | 2023-09-01 | 黑龙江省农业科学院耕作栽培研究所 | High-quality and high-yield planting method for rice |
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