CN112154879B - Planting method of zinc-rich rice - Google Patents
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- CN112154879B CN112154879B CN202011045141.7A CN202011045141A CN112154879B CN 112154879 B CN112154879 B CN 112154879B CN 202011045141 A CN202011045141 A CN 202011045141A CN 112154879 B CN112154879 B CN 112154879B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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Abstract
The invention provides a planting method of zinc-rich rice, which comprises the following steps: transplanting rice seedlings after sowing, respectively spraying a zinc fertilizer added with a bacillus atrophaeus microbial agent on leaves of the rice in a booting stage, a grouting early stage and a grouting later stage of the growth of the rice, wherein the zinc fertilizer is a sugar alcohol chelated zinc fertilizer, and a controlled irrigation mode is adopted for the irrigation of the rice in the full growth period of the rice. The method is simple to operate and low in cost, the content of the zinc element in the planted rice is greatly improved, and the method is suitable for popularization and planting.
Description
Technical Field
The invention belongs to the technical field of agricultural planting, and particularly relates to a planting method of zinc-rich rice.
Background
Zinc is a trace element necessary for human life activities and is indistinguishable from human health problems. The existing research proves that the zinc has four aspects on the influence on human health, namely, the zinc is used as a composition or an activator of various enzymes to participate in the physiological and biochemical reactions of the life body such as protein, nucleic acid synthesis, substance metabolism and the like; secondly, the growth hormone directly acts on the synthesis and secretion of the growth hormone to promote the growth and development of the human body; thirdly, fat peroxidation or mercaptan oxidation is inhibited, the resistance of a biological membrane is enhanced, and further the digestion function of a human body is improved, and the anti-cancer and anti-aging effects are achieved; fourthly, the immunity mechanism of the human body is adjusted, the reproductive function is maintained, the immunity function of body fluid and cells is enhanced, and the like.
The human body cannot synthesize zinc by itself and must be supplemented in the diet. Two common zinc supplementing modes are available, namely, a trace element supplement or a zinc-containing health care product is taken, but the zinc supplementing mode has the disadvantages of high cost, potential side effect risk and the like. And secondly, the zinc intake of people is increased by a bioaugmentation mode. Specifically, the biological enhancement is to improve the content of trace nutrient elements in the existing agricultural products by agricultural measures, has the advantages that the dietary habits of human beings are not required to be changed, the wide range of people can be covered, and the method is the most sustainable development approach for solving the problem of trace element deficiency of human beings at present.
Rice is a main food crop of half of the global population and plays a leading role in the dietary structure of China. However, the concentration of zinc in rice is generally lower than that of other cereal crops, and as the concentration of CO2 increases, the zinc content of rice tends to further decrease, which in turn increases the risk of zinc deficiency in humans leading to related health problems. Therefore, the research on the zinc-rich technology of the rice has important significance for the increasing population demand of China and the physical health of people.
At present, the national standard of zinc-rich rice does not exist in China, but the zinc-rich rice is always a hot spot and difficult problem, and the main reason is that the zinc in the common rice is low in content, and most of the zinc is stored in seed coats and aleurone layers, which are lost along with the processing of the rice. And the rice which we eat in daily life is the endosperm part of rice, and the zinc content is very low because the zinc element is distributed to the part less. At present, methods for improving the zinc content in rice can be roughly divided into two types, firstly, the method is used for cultivating rice products rich in zinc in endosperm through a gene technology, but the method often causes the stress resistance of the rice to be reduced and brings potential health risks; secondly, the zinc element content in the rice is strengthened by agricultural fertilization measures. At present, the commonly used zinc fertilizer is mainly zinc sulfate, but in the existing method or research, the spraying frequency of the zinc fertilizer is more, the quantity is larger, and if the zinc fertilizer is required to be sprayed every 10-15 days, the zinc fertilizer is sprayed once. Not only is the labor cost required high, but also the risk of causing environmental pollution is present.
Disclosure of Invention
The invention aims to provide a planting method of zinc-rich rice aiming at the defects of the prior art, and the method sprays zinc fertilizer in three key periods of rice growth, reduces the production cost and can greatly improve the zinc content in rice.
In order to solve the technical problems, the invention adopts the following technical scheme:
a planting method of zinc-rich rice comprises the following steps: transplanting rice seedlings after sowing, and respectively spraying zinc fertilizer to the leaves of the rice seedlings in the booting stage, the early stage of grouting and the later stage of grouting of the growth of the rice.
Further, the zinc fertilizer is a sugar alcohol chelated zinc fertilizer solution.
Furthermore, a controlled irrigation mode is adopted for the irrigation of the rice in the whole growth period of the rice.
Further, the irrigation control mode is as follows: controlling the thickness of a field water layer to be 5-30mm in the rice green turning period; controlling the thickness of a field water layer to be 0-10mm at the early stage of tillering; controlling the thickness of a field water layer at an upper limit of 10mm and a lower limit of 90% of field water capacity in a tillering stage, and allowing the field surface not to accumulate water; drying the land in the sun at the final stage of tillering; controlling the water layer in the field to be 10-20mm in the jointing stage; controlling the water layer in the field to be 5-15mm in the heading period; controlling the water layer in the field at 0-10mm in the milk stage until the water layer naturally falls to dry in the yellow stage.
Furthermore, the rice is irrigated in a non-control irrigation mode in the whole growth period of the rice.
Further, dissolving the sugar alcohol chelated zinc fertilizer in water to prepare a sugar alcohol chelated zinc fertilizer solution for spraying on leaf surfaces, wherein the volume ratio of the sugar alcohol chelated zinc fertilizer to the water is 0.1-2: 100.
further, bacillus atrophaeus is added into the zinc fertilizer for spraying the leaf surfaces.
Further, the sugar alcohol chelated zinc fertilizer is added with Bacillus atrophaeus with the concentration of 0.1-5 x 108cfu/mL。
Compared with the prior art, the invention has the beneficial effects that:
1) the invention is applied in three key stages of rice growth: the zinc fertilizer is respectively sprayed to the leaves of the rice in the booting stage, the early stage of filling and the later stage of filling, so that the zinc fertilizer is sprayed after the formation of the sword leaves considering that the sword leaves of the rice are the main photosynthetic organs in the later stage of the development of the rice, and the absorption of zinc elements and the transfer of the zinc elements to the rice are facilitated;
2) considering that the common zinc sulfate fertilizer in the prior art has short retention time on the leaf surface and the poor absorption capacity of the leaf to the zinc sulfate fertilizer, the zinc fertilizer adopts sugar alcohol chelated zinc which is an organic liquid fertilizer, can stay on the leaf for longer time and is easier to absorb by rice;
3) the irrigation mode adopts controlled irrigation, the controlled irrigation ensures that the rice has certain water stress, but the moderate water stress does not cause the obvious reduction of the yield, and is beneficial to the absorption of the zinc element of the rice;
4) according to the invention, the microbial agent containing Bacillus atrophaeus is added into the sprayed zinc fertilizer, and the microbial agent is beneficial to promoting the absorption of zinc element by leaves, so that the zinc content of the growing rice is higher.
Drawings
FIG. 1 is a graph showing the content of zinc element in rice according to examples of the present invention and comparative examples.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
Example 1:
before sowing, applying base fertilizer to farmland. In this example, the test variety is Huanghuazhan, and after applying a base fertilizer, the seedlings are sown and then transplanted. The transplanting density of the seedlings is 1.5-1.8 ten thousand holes per mu and 3-4 per hole. In the whole growth period of rice, no inorganic fertilizer, herbicide and pesticide are applied. The insect-proof lamp is arranged in the field for expelling insects, and the whole field weeding work is carried out manually. The processes of seed treatment, seedling raising, land preparation, transplanting and the like are conventional rice planting processes.
Preparing a zinc fertilizer: taking the sugar alcohol chelated zinc fertilizer, and uniformly mixing the sugar alcohol chelated zinc fertilizer with water to prepare a sugar alcohol chelated zinc fertilizer solution, wherein the volume ratio of the mixed sugar alcohol chelated zinc fertilizer to the water is 0.1-0.3: 100.
activating the freeze-dried microbial agent powder added with the bacillus atrophaeus by the following steps:
1) the germ tube was wiped clean with absorbent cotton soaked in 75% alcohol.
2) Heating the top end of the spawn tube on flame, and paying attention to avoid directly heating the spawn or excessively heating;
3) dropping the sterile water to the top end of the heated strain tube to crack the glass;
4) knocking off the top end of the cracked spawn tube by using a file or forceps;
5) sucking a proper amount of liquid culture medium by using a sterile straw, dripping the liquid culture medium into a strain tube, and slightly oscillating to dissolve the freeze-dried bacteria into a suspension liquid;
6) taking the bacterial suspension, transferring the bacterial suspension onto a specific agar culture medium slant or a specific agar culture medium plate, injecting the residual bacterial liquid into a specific liquid culture medium, and then culturing at 28 ℃ according to the characteristics of the strains.
Blending the cultured microbial agent solution and the sugar alcohol chelated zinc fertilizer solution to prepare the sugar alcohol chelated zinc fertilizer solution containing the bacillus atrophaeus, wherein the concentration of the bacillus atrophaeus in the prepared sugar alcohol chelated zinc fertilizer solution containing the bacillus atrophaeus is 0.5-5 multiplied by 108cfu/mL。
And respectively spraying the prepared sugar alcohol chelated zinc fertilizer solution containing the bacillus atrophaeus on the leaf surfaces of the rice in the booting stage, the early stage of grouting and the later stage of grouting.
Irrigating by adopting a controlled irrigation method in the whole growth period of the rice, specifically, controlling the irrigation to be in a shallow-wet-sunning control mode, namely controlling the thickness of a field water layer to be 5-30mm in the green turning period; controlling the thickness of a field water layer to be 0-10mm at the early stage of tillering; controlling the thickness of a field water layer at an upper limit of 10mm and a lower limit of 90% of field water holding capacity in a tillering stage, and allowing the field surface not to accumulate water; drying the land at the end of tillering; controlling the water layer in the field to be 10-20mm in the jointing stage; controlling the water layer in the field to be 5-15mm in the heading period; controlling the water layer in the field to be 0-10mm in the milk stage; naturally drying in the yellow-ripe period. The control irrigation can generate moderate water stress to the rice in the growth process of the rice, the water stress can not cause the obvious reduction of the yield, and the control irrigation is also beneficial to the absorption of zinc element.
After rice grains are mature, harvesting, threshing, airing and shelling are carried out to obtain the zinc-rich rice.
Example 2:
before sowing, applying base fertilizer to farmland. In this example, the test variety is Huanghuazhan, and after applying a base fertilizer, the seedlings are sown and then transplanted. The transplanting density of the seedlings is 1.5-1.8 ten thousand holes per mu and 3-4 per hole. In the whole growth period of the rice, no macroelement inorganic fertilizer, no herbicide and no pesticide are applied. The insect-proof lamp is arranged in the field for expelling insects, and the whole field weeding work is carried out manually. The processes of seed treatment, seedling raising, land preparation, transplanting and the like are all conventional rice planting processes.
Preparing a zinc fertilizer: taking the sugar alcohol chelated zinc fertilizer, and uniformly mixing the sugar alcohol chelated zinc fertilizer with water to prepare a sugar alcohol chelated zinc fertilizer solution, wherein the volume ratio of the sugar alcohol chelated zinc fertilizer to the water is 0.5-0.7: 100.
activating the freeze-dried microbial agent powder added with the bacillus atrophaeus by the following steps:
1) the germ tube was wiped clean with absorbent cotton soaked in 75% alcohol.
2) Heating the top end of the spawn tube on flame, and paying attention to avoid directly heating the spawn or excessively heating;
3) dropping sterile water to the top of the heated strain tube to crack the glass;
4) knocking off the top end of the cracked spawn tube by using a file or forceps;
5) sucking a proper amount of liquid culture medium by using a sterile straw, dripping the liquid culture medium into a strain tube, and slightly oscillating to dissolve the freeze-dried bacteria into a suspension liquid;
6) taking the bacterial suspension, transferring the bacterial suspension onto a specific agar culture medium slant or a specific agar culture medium plate, injecting the residual bacterial liquid into a specific liquid culture medium, and then culturing at 28 ℃ according to the characteristics of the strains.
Blending the cultured microbial agent solution and the sugar alcohol chelated zinc fertilizer solution to prepare the sugar alcohol chelated zinc fertilizer solution containing the bacillus atrophaeus, wherein the concentration of the bacillus atrophaeus in the prepared sugar alcohol chelated zinc fertilizer solution containing the bacillus atrophaeus is 0.5-5×108cfu/mL。
And respectively spraying the prepared sugar alcohol chelated zinc fertilizer solution containing the bacillus atrophaeus on the leaf surfaces of the rice in the booting stage, the early stage of grouting and the later stage of grouting.
Irrigating by adopting a controlled irrigation method in the whole growth period of the rice, specifically, controlling the irrigation to be in a shallow-wet-sunning control mode, namely controlling the thickness of a field water layer to be 5-30mm in the green turning period; controlling the thickness of a field water layer to be 0-10mm at the early stage of tillering; controlling the thickness of a field water layer at an upper limit of 10mm and a lower limit of 90% of field water holding capacity in a tillering stage, and allowing the field surface not to accumulate water; drying the land in the sun at the final stage of tillering; controlling the water layer in the field to be 10-20mm in the jointing stage; controlling the water layer in the field to be 5-15mm in the heading period; controlling the water layer in the field to be 0-10mm in the milk stage; naturally drying in the yellow-ripe period. The control irrigation can generate moderate water stress to the rice in the growth process of the rice, the water stress can not cause the obvious reduction of the yield, and the control irrigation is also beneficial to the absorption of zinc element.
After rice grains are mature, harvesting, threshing, airing and shelling are carried out to obtain the zinc-rich rice.
Example 3:
before sowing, applying base fertilizer to farmland. In this example, the test variety is Huanghuazhan, and after applying a base fertilizer, the seedlings are sown and then transplanted. The transplanting density of the seedlings is 1.5-1.8 ten thousand holes per mu and 3-4 per hole. In the whole growth period of the rice, no macroelement inorganic fertilizer, no herbicide and no pesticide are applied. The insect-proof lamp is arranged in the field for expelling insects, and the whole field weeding work is carried out manually. The processes of seed treatment, seedling raising, land preparation, transplanting and the like are all conventional rice planting processes.
Preparing a zinc fertilizer: taking the sugar alcohol chelated zinc fertilizer, and uniformly mixing the sugar alcohol chelated zinc fertilizer with water to prepare a sugar alcohol chelated zinc fertilizer solution, wherein the volume ratio of the sugar alcohol chelated zinc fertilizer to the water is (1-1.3): 100.
activating the freeze-dried microbial agent powder added with the bacillus atrophaeus by the following steps:
1) the germ tube was wiped clean with absorbent cotton soaked in 75% alcohol.
2) Heating the top end of the spawn tube on flame, and paying attention to avoid directly heating the spawn or excessively heating;
3) dropping the sterile water to the top end of the heated strain tube to crack the glass;
4) knocking off the top end of the cracked spawn tube by using a file or forceps;
5) sucking a proper amount of liquid culture medium by using a sterile suction pipe, dripping the liquid culture medium into a strain pipe, and slightly oscillating to dissolve freeze-dried bacteria into suspension liquid;
6) taking the bacterial suspension, transferring the bacterial suspension onto a specific agar culture medium slant or a specific agar culture medium plate, injecting the residual bacterial liquid into a specific liquid culture medium, and then culturing at 28 ℃ according to the characteristics of the strains.
Blending the cultured microbial agent solution and the sugar alcohol chelated zinc fertilizer solution to prepare the sugar alcohol chelated zinc fertilizer solution containing the bacillus atrophaeus, wherein the concentration of the bacillus atrophaeus in the prepared sugar alcohol chelated zinc fertilizer solution containing the bacillus atrophaeus is 0.5-5 multiplied by 108cfu/mL。
And respectively spraying the prepared sugar alcohol chelated zinc fertilizer solution containing the bacillus atrophaeus on the leaf surfaces of the rice in the booting stage, the early stage of grouting and the later stage of grouting.
Irrigating by adopting a controlled irrigation method in the whole growth period of the rice, specifically, controlling the irrigation to be in a shallow-wet-sunning control mode, namely controlling the thickness of a field water layer to be 5-30mm in the green turning period; controlling the thickness of a field water layer to be 0-10mm at the early stage of tillering; controlling the thickness of a field water layer at an upper limit of 10mm and a lower limit of 90% of field water holding capacity in a tillering stage, and allowing no water to accumulate on the field surface; drying the land in the sun at the final stage of tillering; controlling the water layer in the field to be 10-20mm in the jointing stage; controlling the water layer in the field to be 5-15mm in the heading period; controlling the water layer in the field to be 0-10mm in the milk stage; naturally drying in the yellow-ripe period. The control irrigation can generate moderate water stress to the rice in the growth process of the rice, the water stress can not cause the obvious reduction of the yield, and the control irrigation is also beneficial to the absorption of zinc element.
After rice grains are mature, harvesting, threshing, airing and shelling are carried out to obtain the zinc-rich rice.
Example 4:
unlike example 1, the sugar alcohol-chelated zinc fertilizer solution of this example does not contain a microbial agent containing bacillus atrophaeus. The remaining steps were the same as in example 1.
Example 5:
unlike example 2, the sugar alcohol-chelated zinc fertilizer solution of this example does not contain a microbial agent containing bacillus atrophaeus. The remaining steps were the same as in example 2.
Example 6:
the difference from example 3 is that the sugar alcohol-chelated zinc fertilizer solution of this example is not added with a microbial agent containing Bacillus atrophaeus, and the rest of the procedure is the same as example 3.
Example 7:
before sowing, applying base fertilizer to farmland. In this example, the test variety is Huanghuazhan, and after applying a base fertilizer, the seedlings are sown and then transplanted. The transplanting density of the seedlings is 1.5-1.8 ten thousand holes per mu and 3-4 per hole. In the whole growth period of the rice, no macroelement inorganic fertilizer, no herbicide and no pesticide are applied. The insect-proof lamp is arranged in the field for expelling insects, and the whole field weeding work is carried out manually. The processes of seed treatment, seedling raising, land preparation, transplanting and the like are all conventional rice planting processes.
Preparing a zinc fertilizer: taking the sugar alcohol chelated zinc fertilizer, and uniformly mixing the sugar alcohol chelated zinc fertilizer with water to prepare a sugar alcohol chelated zinc fertilizer solution, wherein the volume ratio of the sugar alcohol chelated zinc fertilizer to the water is 0.1-0.3: 100.
and respectively spraying the prepared sugar alcohol chelated zinc fertilizer solution on the leaf surfaces of the rice in the booting stage, the early stage of grouting and the later stage of grouting.
The non-control irrigation method is adopted for irrigation in the whole growth period of the rice, so that the irrigation supply is ensured in the whole growth period, and the whole growth period of the rice is not stressed by water.
Harvesting, threshing, airing and shelling the rice after the rice grains are mature to obtain the rice.
Example 8:
before sowing, applying base fertilizer to farmland. Transplanting the seedlings after sowing. The transplanting density of the seedlings is 1.5-1.8 ten thousand holes per mu and 3-4 per hole. In the whole growth period of the rice, no macroelement inorganic fertilizer, no herbicide and no pesticide are applied. The insect-proof lamp is arranged in the field for expelling insects, and the whole field weeding work is carried out manually. The processes of seed treatment, seedling raising, land preparation, transplanting and the like are all conventional rice planting processes.
Preparing a zinc fertilizer: taking the sugar alcohol chelated zinc fertilizer, and uniformly mixing the sugar alcohol chelated zinc fertilizer with water to prepare a sugar alcohol chelated zinc fertilizer solution, wherein the volume ratio of the sugar alcohol chelated zinc fertilizer to the water is 0.5-0.7: 100.
and respectively spraying the prepared sugar alcohol chelated zinc fertilizer solution on the leaf surfaces of the rice in the booting stage, the early stage of grouting and the later stage of grouting.
The non-control irrigation method is adopted for irrigation in the whole growth period of the rice, so that the irrigation supply is ensured in the whole growth period, and the whole growth period of the rice is not stressed by water.
Harvesting, threshing, airing and shelling the rice after the rice grains are mature to obtain the rice.
Example 9:
before sowing, applying base fertilizer to farmland. Transplanting the seedlings after sowing. The transplanting density of the seedlings is 1.5-1.8 ten thousand holes per mu and 3-4 per hole. In the whole growth period of the rice, no macroelement inorganic fertilizer, no herbicide and no pesticide are applied. The insect-proof lamp is arranged in the field for expelling insects, and the whole field weeding work is carried out manually. The processes of seed treatment, seedling raising, land preparation, transplanting and the like are all conventional rice planting processes.
Preparing a zinc fertilizer: taking the sugar alcohol chelated zinc fertilizer, and uniformly mixing the sugar alcohol chelated zinc fertilizer with water to prepare a sugar alcohol chelated zinc fertilizer solution, wherein the volume ratio of the sugar alcohol chelated zinc fertilizer to the water is (1-1.3): 100.
the prepared sugar alcohol chelated zinc fertilizer solution is respectively sprayed on the leaf surfaces of the rice in the booting stage, the early stage of grouting and the later stage of grouting.
The non-control irrigation method is adopted for irrigation in the whole growth period of the rice, so that the irrigation supply is ensured in the whole growth period, and the whole growth period of the rice is not stressed by water.
Harvesting, threshing, airing and shelling the rice after the rice grains are mature to obtain the rice.
To better illustrate the beneficial effects of the present invention, the above conventional planting was performed using wampee as a test variety, but the sugar alcohol chelated zinc fertilizer and Bacillus atrophaeus in the above examples were not applied, and a non-controlled irrigation mode was used as a comparative example for comparison.
The rice of examples 1 to 9 and comparative example was used to test the content of zinc. The specific operation method comprises the following steps: rice is ground after husking, ashed by a dry ashing method, ash is dissolved by dilute hydrochloric acid or nitric acid, and the ash is measured by an atomic absorption spectrophotometry. Each example was tested in triplicate to obtain the test results shown in figure 1. The concrete test method refers to the third edition of soil agro-chemical analysis published by Chinese agriculture Press.
As can be seen from figure 1, the zinc content in rice after the sugar alcohol chelated zinc fertilizer is respectively sprayed on the leaf surfaces of the rice in the booting stage, the early stage of grouting and the later stage of grouting is obviously improved compared with that after the zinc fertilizer is not sprayed (comparative example). Wherein, the sprayed sugar alcohol chelated zinc fertilizer is added with a microbial agent containing bacillus atrophaeus and is planted by irrigation (examples 1-3), the content of zinc in the harvested rice is greatly improved compared with the comparative example, in particular, the average content of zinc element in the rice treated by examples 2 and 3 is 2-3 times of that of the comparative example.
In addition, as can be seen from fig. 1, the zinc content in rice is increased to a smaller extent under the condition of only controlling irrigation without applying a microbial agent. Specifically, the average content of the zinc element in the rice in example 5 is only increased by 4.8 percent compared with that in example 8, and the average content of the zinc element in the rice in example 6 is only increased by 1.4 percent compared with that in example 9.
In addition, the more the zinc fertilizer is applied, the more suitable the zinc fertilizer is, in our experiments, the phenomenon that the rice leaves are damaged due to poor uniformity of manual spraying operation when the high-concentration zinc fertilizer is applied is found, and the yield reduction risk exists to a certain extent. Therefore, the volume ratio of the sugar alcohol chelated zinc fertilizer to water is not more than 2: 100. the method is simple to operate and low in cost, the content of the zinc element in the planted rice is greatly improved, and the method is suitable for popularization and planting.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (5)
1. The planting method of the zinc-rich rice is characterized by comprising the following steps: transplanting rice seedlings after seeding, spraying zinc fertilizer to the blades of the rice seedlings respectively in the booting period, the early stage of grouting and the later stage of grouting during the growth of the rice, wherein the control irrigation mode is adopted for the irrigation of the rice in the full growth period of the rice, and the control irrigation mode is as follows: controlling the thickness of a field water layer to be 5-30mm in the rice green turning period; controlling the thickness of a field water layer to be 0-10mm at the early stage of tillering; controlling the thickness of a field water layer at an upper limit of 10mm and a lower limit of 80% of field water capacity in a tillering stage, and allowing the field surface not to accumulate water; drying the land in the sun at the final stage of tillering; controlling the water layer in the field to be 10-20mm in the jointing stage; controlling the water layer in the field to be 5-15mm in the heading period; controlling the water layer in the field at 0-10mm in the milk stage until the water layer naturally falls to dry in the yellow stage.
2. The planting method of the zinc-rich rice as claimed in claim 1, wherein the zinc fertilizer is a sugar alcohol chelated zinc fertilizer.
3. The planting method of the zinc-rich rice as claimed in claim 2, wherein the sugar alcohol chelated zinc fertilizer solution for spraying on the foliage is prepared by dissolving a sugar alcohol chelated zinc fertilizer in water, wherein the sugar alcohol chelated zinc fertilizer is mixed with water in a volume ratio of 0.1-2: 100.
4. the method for growing zinc-rich rice according to claim 1, wherein Bacillus atrophaeus is added to the zinc fertilizer for foliar application.
5. The method of claim 4, wherein Bacillus atrophaeus is added to the zinc-rich rice fertilizer in a concentration of 0.1-5X 108 cfu/mL。
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| CN102503729A (en) * | 2011-11-25 | 2012-06-20 | 史丹利化肥股份有限公司 | Special bio-compound fertilizer for rice and production method thereof |
| WO2015109567A1 (en) * | 2014-01-26 | 2015-07-30 | 微港生物科技江苏有限公司 | Specialized zinc fertilizer for paddy and preparation thereof, and method for producing zinc-rich rice |
| CN106866256A (en) * | 2017-03-15 | 2017-06-20 | 安徽省卫国农业科技有限公司 | A kind of special secondary and micro-element fertilizers of paddy rice |
| CN107759369A (en) * | 2017-12-04 | 2018-03-06 | 山东庞大生物集团有限公司 | Efficient liquid bacterial manure and preparation method thereof |
| CN108207525A (en) * | 2018-02-08 | 2018-06-29 | 福建农林大学 | A kind of cultural method of zinc-rich formula rice |
| CN110463540A (en) * | 2018-05-10 | 2019-11-19 | 朱江 | A kind of implantation methods of green organic selenium-zinc enriched nutrition rice |
| CN109997631A (en) * | 2019-03-14 | 2019-07-12 | 深圳市芭田生态工程股份有限公司 | The implantation methods and rice rich in zinc of rice rich in zinc |
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