CN110373209B - Water-retaining agent special for sweet potatoes and water-saving sweet potato cultivation method - Google Patents
Water-retaining agent special for sweet potatoes and water-saving sweet potato cultivation method Download PDFInfo
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Abstract
The invention relates to a water-retaining agent special for sweet potatoes and a water-saving sweet potato cultivation method, and belongs to the technical field of agricultural materials and agricultural planting. The special water-retaining agent for the sweet potatoes comprises N, N-methylene bisacrylamide, carboxymethyl cellulose, acrylic acid, acrylamide, potassium persulfate, potassium hydroxide, sodium hydroxide, humic acid, naphthylacetic acid, indolebutyric acid, thiophanate methyl, farmyard manure and deionized water. The special water-retaining agent for the sweet potatoes can improve the soil structure, retain soil moisture, promote seed potato germination, increase the seedling emergence amount and the quality of potato seedlings, improve the transplanting survival rate of the sweet potatoes, promote root growth and root tuber expansion, increase the yield, improve the quality and improve the moisture utilization rate.
Description
Technical Field
The invention relates to the technical field of agricultural materials and agricultural planting, in particular to a water-retaining agent special for sweet potatoes and a water-saving sweet potato cultivation method.
Background
The sweet potato is important grain, feed, industrial raw material and novel energy crop in China, and has rich nutrition and balanced nutrients. With the improvement of the living standard of people, the sweet potatoes become important energy crops and health-care food. However, as drought-tolerant crops, sweet potatoes are mostly planted in dry and thin hilly lands with poor soil fertility and poor nutrients, the potential production capacity cannot be fully exerted, and particularly in semi-humid and partially drought areas, drought becomes a limiting factor for further improvement of the yield of the sweet potatoes. The technical approach for improving the yield of the sweet potatoes in the dry land is as follows: firstly, selecting drought-resistant varieties; secondly, the water storage capacity and the water retention capacity of the soil are increased through farming measures; thirdly, drought resistance and drought resisting capability of the sweet potatoes are enhanced and water utilization efficiency is improved through a planting mode and an agricultural technology. The water and soil loss is increased year by year in the world, the arid and semiarid farmland areas are increased year by year, and the improvement of the limited water resource utilization rate and the precipitation yield-increasing potential are always emphasized by agricultural scientific researchers at home and abroad. However, at present, no efficient water retention method for sweet potatoes exists, so that the yield of the sweet potatoes in dry and thin hilly lands cannot be fully exerted.
Disclosure of Invention
The invention aims to provide a special water-retaining agent for sweet potatoes and a water-saving sweet potato cultivation method. The special water-retaining agent for the sweet potatoes can improve the soil structure, retain soil moisture, promote seed potato germination, increase the seedling emergence amount and the quality of potato seedlings, improve the transplanting survival rate of the sweet potatoes, promote root growth and root tuber expansion, increase the yield, improve the quality and improve the moisture utilization rate.
The invention provides a special water-retaining agent for sweet potatoes, which comprises the following components in parts by weight:
0.03-0.06 part of N, N-methylene bisacrylamide, 1.5-3 parts of carboxymethyl cellulose, 15-30 parts of acrylic acid, 6-12 parts of acrylamide, 0.1-2.4 parts of potassium persulfate, 1.5-3 parts of potassium hydroxide, 6-12 parts of sodium hydroxide, 0.3-0.6 part of humic acid, 0.02-0.05 part of naphthylacetic acid, 0.02-0.05 part of indolebutyric acid, 2-3 parts of thiophanate-methyl, 100-200 parts of farmyard manure and 1000-1500 parts of deionized water.
Preferably, the particle size of the water retaining agent is 0.25-0.40 mm.
The invention also provides a method for cultivating sweet potatoes in a water-saving manner based on the water-retaining agent, which comprises the following steps:
1) mixing the water-retaining agent and the chemical fertilizer to obtain a water-retaining agent and chemical fertilizer mixed sample, and mixing the water-retaining agent and chemical fertilizer mixed sample with fine sandy soil to obtain a seedbed culture medium;
2) after arranging the seed potatoes on a seedbed, covering the seedbed culture medium obtained in the step 1) on the seed potatoes, and growing to obtain potato seedlings;
3) fertilizing and ridging along with the field, and applying the water-retaining agent and fertilizer mixed sample in the step 1) into the ridge;
4) soaking the potato seedlings in the step 2) in an antibacterial insecticide to obtain sterilized potato seedlings, soaking the sterilized potato seedlings in an aqueous solution of a water retention agent for 10-20 min, and transplanting the potato seedlings to a field for transplanting;
the water-retaining agent solution is obtained by mixing and stirring the water-retaining agent and water according to the technical scheme, and the mass fraction of the water-retaining agent in the water is 1-2%.
Preferably, the mass ratio of the water-retaining agent mixed with the fertilizer in the step 1) is 1: 10.
Preferably, the mass ratio of the water-retaining agent and fertilizer mixed sample in the step 1) to the fine sandy soil is 1: 20.
Preferably, the thickness of the covering of the seedbed culture medium in the step 2) is 3-5 cm.
Preferably, the dosage of the water retention agent and fertilizer mixed sample in the step 3) is 990kg/hm2。
Preferably, the cultivation method further comprises 200-300 mL of pit watering water after the planting in the step 4).
The invention provides a special water-retaining agent for sweet potatoes. The special water-retaining agent for the sweet potatoes comprises N, N-methylene bisacrylamide, carboxymethyl cellulose, acrylic acid, acrylamide, potassium persulfate, potassium hydroxide, sodium hydroxide, humic acid, naphthylacetic acid, indolebutyric acid, thiophanate methyl, farmyard manure and deionized water. The addition of humic acid can enrich soil nutrients, preserve soil moisture, promote root growth and root tuber expansion of the sweet potatoes, promote absorption and utilization of nitrogen, phosphorus and potassium fertilizers by the sweet potatoes and improve yield and quality of the sweet potatoes; the addition of the naphthylacetic acid and the indolebutyric acid can promote rooting and improve the transplanting survival rate of the sweet potatoes; the addition of thiophanate methyl can prevent and control the black spot of the sweet potato; the addition of farmyard manure can increase the organic matter content of soil, improve the commodity rate of sweet potatoes and improve the quality; the water-retaining agent is added into the seedbed culture medium, so that the seed potato germination can be promoted, the seedling emergence amount and the potato seedling quality can be increased, the seedbed watering frequency can be reduced, and the water can be saved; the water-retaining agent is applied to the ridges when the ridges are formed in the field, so that the soil structure can be improved, the soil volume weight can be reduced, the soil air permeability can be improved, the soil moisture evaporation can be reduced, the nutrient loss can be reduced, the root growth and the root tuber expansion can be promoted, and the yield and the quality of the sweet potatoes can be improved; when the seedlings are planted in the field, the water-retaining agent is used for soaking the seedlings, so that the root dehydration can be prevented, the transplanting survival rate is improved, and the nest water consumption is saved. The water-retaining agent disclosed by the invention contains various effective components, the particle size is 0.25-0.40 mm, the deionized water absorption rate is 500-700 times, and the 0.9% NaCl solution absorption rate is 100-150 times, so that the soil structure can be improved, the soil volume weight is reduced, the soil air permeability is improved, the soil moisture evaporation is reduced, the nutrient loss is reduced, the seed potato germination is promoted, the seedling emergence amount and the potato seedling quality are increased, the transplanting survival rate is improved, the root system growth and the root tuber expansion are promoted, the black spot disease can be prevented and treated, the yield and the commodity rate of sweet potatoes are increased, and the quality is improved. The water-retaining agent disclosed by the invention can save water by 30-40% when used for cultivating the sweet potatoes, and ensure the yield and quality of the sweet potatoes in arid years.
Detailed Description
The invention provides a special water-retaining agent for sweet potatoes, which comprises the following components in parts by weight:
0.03-0.06 part of N, N-methylene bisacrylamide, 1.5-3 parts of carboxymethyl cellulose, 15-30 parts of acrylic acid, 6-12 parts of acrylamide, 0.1-2.4 parts of potassium persulfate, 1.5-3 parts of potassium hydroxide, 6-12 parts of sodium hydroxide, 0.3-0.6 part of humic acid, 0.02-0.05 part of naphthylacetic acid, 0.02-0.05 part of indolebutyric acid, 2-3 parts of thiophanate-methyl, 100-200 parts of farmyard manure and 1000-1500 parts of deionized water.
The water-retaining agent special for the sweet potatoes comprises 0.03-0.06 part of N, N-methylene bisacrylamide, and more preferably 0.04 part of N, N-methylene bisacrylamide. In the invention, the N, N-methylene bisacrylamide acts as a cross-linking agent, and the water absorption performance is improved under the action of an initiator. The source of the N, N-methylene bisacrylamide is not particularly limited in the present invention, and a conventional N, N-methylene bisacrylamide commercially available product well known to those skilled in the art may be used.
The water-retaining agent special for the sweet potatoes comprises 1.5-3 parts of carboxymethyl cellulose, and more preferably 2 parts. In the invention, the carboxymethyl cellulose acts as a dispersant, and the water retention performance is improved under the action of an initiator and a cross-linking agent. The source of the carboxymethyl cellulose in the present invention is not particularly limited, and a commercially available product of conventional carboxymethyl cellulose known to those skilled in the art may be used.
The water-retaining agent special for the sweet potatoes comprises 15-30 parts of acrylic acid, and more preferably 20 parts. In the invention, the acrylic acid has the function of performing neutralization reaction with sodium hydroxide and potassium hydroxide, and the water absorption rate and the water absorption capacity of the water retention agent are adjusted by changing the neutralization degree of the acrylic acid. The source of the acrylic acid in the present invention is not particularly limited, and a conventional commercial product of acrylic acid well known to those skilled in the art may be used.
The water-retaining agent special for the sweet potatoes comprises 6-12 parts of acrylamide, and more preferably 8 parts. In the invention, the acrylamide acts on a cross-linking agent N, N-methylene bisacrylamide and an initiator potassium persulfate to form a polymer, so that the water absorption capacity and the water absorption period are improved, and the air permeability of the soil is favorably improved. The source of the acrylamide in the present invention is not particularly limited, and a conventional acrylamide commercially available product well known to those skilled in the art may be used.
The special water-retaining agent for sweet potatoes comprises 0.1-2.4 parts of potassium persulfate, and more preferably 1.5 parts. In the invention, the potassium persulfate is used as an initiator and reacts with acrylamide and N, N-methylene-bisacrylamide to form a polymer, so that the water absorption performance of the water-retaining agent is improved. The source of the potassium persulfate is not particularly limited in the present invention, and conventional commercial potassium persulfate products well known to those skilled in the art may be used.
The water-retaining agent special for the sweet potatoes comprises 1.5-3 parts of potassium hydroxide, and more preferably 2 parts. In the invention, the potassium hydroxide has the effect of performing a neutralization reaction with sodium hydroxide and acrylic acid, the water absorption performance of the water-retaining agent is adjusted by changing the neutralization degree, and the potassium content in the water-retaining agent is increased, so that the expansion of root crops is promoted, and the yield is increased. The source of the potassium hydroxide is not particularly limited in the present invention, and a conventional potassium hydroxide commercially available product well known to those skilled in the art may be used.
The water-retaining agent special for the sweet potatoes comprises 6-12 parts of sodium hydroxide, and more preferably 8 parts. In the invention, the sodium hydroxide acts with acrylic acid and N, N-methylene bisacrylamide to form N-hexane, and the N-hexane swells with deionized water to generate a polymer. The source of the sodium hydroxide is not particularly limited in the present invention, and a conventional sodium hydroxide commercially available product well known to those skilled in the art may be used.
The water-retaining agent special for sweet potatoes comprises 0.3-0.6 part of humic acid, and more preferably 0.4 part. In the invention, the humic acid has the functions of enriching soil nutrients, preserving soil moisture, promoting root growth and root tuber expansion of the sweet potatoes, promoting absorption and utilization of nitrogen, phosphorus and potassium fertilizers by the sweet potatoes and improving yield and quality of the sweet potatoes. The source of the humic acid is not particularly limited in the present invention, and a conventional commercially available humic acid product known to those skilled in the art may be used.
The water-retaining agent special for the sweet potatoes comprises 0.02-0.05 part of naphthylacetic acid, and more preferably 0.03 part of naphthylacetic acid. The source of the naphthylacetic acid in the present invention is not particularly limited, and a conventional commercial product of naphthylacetic acid known to those skilled in the art may be used.
The water-retaining agent special for the sweet potatoes comprises 0.02-0.05 part of indolebutyric acid, and more preferably 0.03 part of indolebutyric acid. In the invention, the naphthylacetic acid and the indolebutyric acid can promote rooting and improve the transplanting survival rate of the sweet potatoes. The source of said indolebutyric acid is not particularly limited in the present invention, and any commercially available product of conventional indolebutyric acid known to those skilled in the art may be used.
The water-retaining agent special for the sweet potatoes comprises 2-3 parts of thiophanate methyl, and more preferably 2.5 parts. In the invention, the thiophanate methyl can prevent and control the black spot of the sweet potato. The source of the thiophanate methyl is not particularly limited in the present invention, and a conventional thiophanate methyl commercially available product well known to those skilled in the art may be used.
The water-retaining agent special for sweet potatoes comprises 100-200 parts of farmyard manure, and more preferably 150 parts. According to the invention, the farmyard manure can increase the organic matter content of soil, improve the commodity rate of sweet potatoes and improve the quality. The source of the farmyard manure is not particularly limited in the present invention, and conventional farmyard manure commercially available products well known to those skilled in the art may be used.
The water-retaining agent special for sweet potatoes comprises 1000-1500 parts of deionized water, and more preferably 1200 parts. In the invention, the deionized water is used as a reaction liquid in the preparation process of the water-retaining agent. The source of the deionized water is not particularly limited in the present invention, and conventional deionized water known to those skilled in the art may be used.
In the invention, the particle size of the water retaining agent is preferably 0.25-0.40 mm, and more preferably 0.30 mm.
The invention also provides a method for cultivating sweet potatoes in a water-saving manner based on the water-retaining agent, which comprises the following steps:
1) mixing the water-retaining agent and the chemical fertilizer to obtain a water-retaining agent and chemical fertilizer mixed sample, and mixing the water-retaining agent and chemical fertilizer mixed sample with fine sandy soil to obtain a seedbed culture medium;
2) after arranging the seed potatoes on a seedbed, covering the seedbed culture medium obtained in the step 1) on the seed potatoes, and growing to obtain potato seedlings;
3) fertilizing and ridging along with the field, and applying the water-retaining agent and fertilizer mixed sample in the step 1) into the ridge;
4) soaking the potato seedlings in the step 2) in an antibacterial insecticide to obtain sterilized potato seedlings, soaking the sterilized potato seedlings in an aqueous solution of a water retention agent for 10-20 min, and transplanting the potato seedlings to a field for transplanting;
the water-retaining agent solution is obtained by mixing and stirring the water-retaining agent and water according to the technical scheme, and the mass fraction of the water-retaining agent in the water is 1-2%.
According to the technical scheme, the water-retaining agent is mixed with the chemical fertilizer to obtain a water-retaining agent and chemical fertilizer mixed sample, and the water-retaining agent and chemical fertilizer mixed sample is mixed with fine sandy soil to obtain the seedbed culture medium. In the invention, the mass ratio of the water-retaining agent to the fertilizer is 1: 10. In the invention, the mass ratio of the water-retaining agent fertilizer mixed sample to the fine sandy soil is 1: 20. The seedbed culture medium is preferably prepared before sweet potato seedling culture. The water-retaining agent is added into the seedbed culture medium, so that the seed potato germination can be promoted, the seedling emergence amount and the potato seedling quality can be increased, the seedbed watering frequency can be reduced, and the water can be saved.
After the seed potatoes are arranged on the seedbed, the seedbed culture medium is covered on the seed potatoes, and the potato seedlings are obtained through growth. In the invention, the thickness of the seedbed culture medium coverage is 3-5 cm. The operation of the invention can improve the soil structure, preserve soil moisture, promote the seed potato germination, provide nutrients for the growth of the potato seedlings, and increase the seedling emergence amount and the quality of the potato seedlings.
The invention applies fertilizer and ridges along with the field, and applies the water-retaining agent and fertilizer mixed sample into the ridges. In the invention, the dosage of the water-retaining agent and fertilizer mixed sample is 990kg/hm2Wherein the dosage of the water retention agent is preferably 90kg/hm2The dosage of the fertilizer is preferably 900kg/hm2. The method for applying the water-retaining agent and the fertilizer is not particularly limited, and the conventional fertilizer application method can be adopted, for example, the water-retaining agent and the fertilizer mixed sample is added into a fertilizer applicator for operation. The water-retaining agent is applied to the ridges during ridge forming in the field, so that the soil structure can be improved, the soil volume weight is reduced, the soil air permeability is improved, the soil moisture evaporation is reduced, the nutrient loss is reduced, the root growth and the root tuber expansion are promoted, and the yield and the quality of the sweet potatoes are improved.
The method comprises the steps of soaking potato seedlings in antibacterial insecticide to obtain sterilized potato seedlings, soaking the sterilized potato seedlings in an aqueous solution of a water retention agent for 10-20 min, and transplanting the potato seedlings to a field for transplanting. The water-retaining agent solution is obtained by mixing and stirring the water-retaining agent and water according to the technical scheme, and the mass fraction of the water-retaining agent in the water is 1-2%. In the present invention, the water retaining agent solution is preferably stirred into a gel form. In the invention, 200-300 mL of pit watering water is further included after the planting. According to the method, the water-retaining agent is used for soaking the base parts of the seedlings for 10-20 min during field planting, so that the root dehydration can be prevented, the transplanting survival rate is improved, and the nest water consumption is saved.
The water-retaining agent special for sweet potatoes and the method for water-saving cultivation of sweet potatoes are further described in detail with reference to specific examples, and the technical scheme of the invention includes but is not limited to the following examples.
Examples 1 to 6
Test site: the test was carried out in 2014-2016 in the test field of agricultural academy of sciences of Shandong province. The test land is a plain land, the soil type is loam, the irrigation and drainage are convenient, and the basic fertility of the soil of a plough layer is as follows: 1.09% of organic matter, 90.50mg/kg of alkaline hydrolysis nitrogen, 15.02mg/kg of quick-acting phosphorus and 110.50mg/kg of quick-acting potassium.
The test varieties are: jishu 26, a variety bred by the institute of crops of agricultural sciences, Shandong province.
And (3) experimental design: the test is carried out by arranging 6 water-retaining agent formulas, designing random block, repeating for 3 times, wherein the row length is 10m, the ridge distance is 85cm, the row area is 10, and the cell area is 85m2Planting density of 52000 plants/hm2The test is carried out in 5 months and 20 days, and the plants are harvested in 10 months and 20 days.
The application method of the water-retaining agent comprises the following steps: respectively mixing the water-retaining agent formulas of the embodiments 1-6 with the chemical fertilizer according to the proportion of 1:10, putting the mixture into a fertilizer applicator, applying the water-retaining agent and chemical fertilizer mixture into ridges along with the ridge forming of field fertilization, wherein the dosage of the water-retaining agent is 90kg/hm2The dosage of the fertilizer is 900kg/hm2(ii) a Adding water according to the formula of the water-retaining agent of the embodiment 1-6 in a proportion of 1-2%, stirring into a gel state, and soaking the base parts of the potato seedlings in the water-retaining agent solution for 10-20 minutes; and (4) planting the treated potato seedlings in a field, and watering 200-300 ml of pit water.
TABLE 1 Water retention agent formulations of examples 1-6
The survival rate of transplanted sweet potatoes, the black spot disease index, the soluble sugar content, the soil volume weight, the total porosity of soil, the daily evaporation amount between ridges, the water utilization rate, the commodity rate and the yield of fresh potatoes in examples 1 to 6 were counted, and the seedbed seedling test and the field cultivation test of examples 7 to 15 were performed on the optimal water-retaining agent formulation example 6 in examples 1 to 6. The results are shown in tables 2, 4 and 6.
TABLE 2 effects of examples 1 to 6
Examples 7 to 8
Test site: the test is carried out in 2017-2018 in a seedling raising shed of Shandong province academy of agricultural sciences.
The test varieties are: jishu 26, a variety bred by the institute of crops of agricultural sciences, Shandong province.
And (3) experimental design: the test is carried out by setting 2 seedbeds for treatment, designing random block groups, repeating for 3 times, wherein the length of the seedbed is 20m, the width is 2m, and the area of the cell is 40m2The seed sowing density of the seed potatoes is 20-30 kg/m2And the seeding time is 3 months and 20 days.
TABLE 3 preparation of seedbed culture media of examples 7 to 8
The water-retaining agent formula described in example 6 was subjected to the seedbed culture matrix test of examples 7 to 8, and the germination time, the seedling emergence amount, the weight of hundreds of plants and the watering frequency were counted. The results are shown in Table 4.
TABLE 4 effects of examples 7 to 8
| Examples | Time of germination (d) | Amount of emergence (plants/m)2) | Hundred plants weight (kg) | Frequency of watering |
| 7 | 30～40 | 500～600 | 0.4～0.5 | 1 time/7-10 d |
| 8 | 20～30 | 800～900 | 0.7～0.8 | 1 time/14-20 d |
Examples 9 to 15
Test site: the test is carried out in the Qingyang town test field in Zhongping county in 2017-2018. The test land is a hilly land, the soil type is sandy loam, and the basic fertility of the plough layer soil: 0.95 percent of organic matter, 85.35mg/kg of alkaline hydrolysis nitrogen, 16.32mg/kg of quick-acting phosphorus and 100.95mg/kg of quick-acting potassium.
The test varieties are: jishu 26, a variety bred by the institute of crops of agricultural sciences, Shandong province.
And (3) experimental design: the test is carried out by 6 treatments, designing random block, repeating for 3 times, wherein the row length is 10m, the ridge distance is 85cm, the row area is 10, and the cell area is 85m2Planting density of 52000 plants/hm2The test is carried out in 18 days of 5 months and harvesting in 20 days of 10 months.
The application method of the water-retaining agent comprises the following steps: uniformly mixing the water-retaining agent and the chemical fertilizer according to the proportion of 1:10, putting the mixture into a fertilizer applicator, applying the water-retaining agent and the chemical fertilizer mixture into ridges along with field fertilization and ridging, wherein the dosage of the water-retaining agent in the embodiment 6 is 90kg/hm2The dosage of the fertilizer is 900kg/hm2. Before planting, adding water into the water-retaining agent of the embodiment 6 according to the proportion of 1-2% and stirring the water into gel, then soaking the potato seedlings soaked with the antibacterial insecticide in the water-retaining agent solution for 10-20 minutes, then planting in the field, and pouring 200-300 ml of pit water.
TABLE 5 cultivation measures of examples 9 to 15
The field cultivation test of the embodiment 9-15 is carried out on the formula of the water-retaining agent of the embodiment 6, and the transplanting survival rate of sweet potatoes, the disease index of black spot, the content of soluble sugar, the volume weight of soil, the total porosity of soil, the daily evaporation amount between ridges, the water utilization rate, the commodity rate and the yield of fresh potatoes are counted. The results are shown in Table 6.
TABLE 6 effects of examples 9 to 15
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A method for cultivating sweet potatoes in a water-saving way comprises the following steps:
1) mixing a water-retaining agent and a chemical fertilizer to obtain a water-retaining agent and chemical fertilizer mixed sample, and mixing the water-retaining agent and chemical fertilizer mixed sample with fine sandy soil to obtain a seedbed culture medium;
2) after arranging the seed potatoes on a seedbed, covering the seedbed culture medium obtained in the step 1) on the seed potatoes, and growing to obtain potato seedlings;
3) fertilizing and ridging along with the field, and applying the water-retaining agent and fertilizer mixed sample in the step 1) into the ridge;
4) soaking the potato seedlings in the step 2) in an antibacterial insecticide to obtain sterilized potato seedlings, soaking the sterilized potato seedlings in an aqueous solution of a water retention agent for 10-20 min, and transplanting the potato seedlings to a field for transplanting;
the water-retaining agent solution is obtained by mixing and stirring a water-retaining agent and water, wherein the mass fraction of the water-retaining agent in the water is 1-2%;
the water-retaining agent is prepared from the following components in parts by weight:
0.03-0.06 part of N, N-methylene bisacrylamide, 1.5-3 parts of carboxymethyl cellulose, 15-30 parts of acrylic acid, 6-12 parts of acrylamide, 0.1-2.4 parts of potassium persulfate, 1.5-3 parts of potassium hydroxide, 6-12 parts of sodium hydroxide, 0.3-0.6 part of humic acid, 0.02-0.05 part of naphthylacetic acid, 0.02-0.05 part of indolebutyric acid, 2-3 parts of thiophanate-methyl, 100-200 parts of farmyard manure and 1000-1500 parts of deionized water;
the particle size of the water-retaining agent is 0.25-0.40 mm.
2. The method as claimed in claim 1, wherein the mass ratio of the water retention agent and the fertilizer in step 1) is 1: 10.
3. The method of claim 1 wherein the mass ratio of the water retention agent fertilizer mixture sample of step 1) to the fine sand is 1: 20.
4. The method as claimed in claim 1, wherein the thickness of the bed culture substrate in step 2) is 3-5 cm.
5. The method of claim 1 wherein the amount of said water retention agent fertilizer mixture of step 3) is 990kg/hm2。
6. The method according to claim 1, wherein the step 4) further comprises watering 200-300 mL after the planting.
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| CN107371976A (en) * | 2017-08-28 | 2017-11-24 | 芜湖浪尖山生态林业有限公司 | A kind of high-yield disease resisting implantation methods of pomegranate |
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| CN107371976A (en) * | 2017-08-28 | 2017-11-24 | 芜湖浪尖山生态林业有限公司 | A kind of high-yield disease resisting implantation methods of pomegranate |
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