CN113079733A - Water retention method for sandy farmland - Google Patents
Water retention method for sandy farmland Download PDFInfo
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- CN113079733A CN113079733A CN202110395170.4A CN202110395170A CN113079733A CN 113079733 A CN113079733 A CN 113079733A CN 202110395170 A CN202110395170 A CN 202110395170A CN 113079733 A CN113079733 A CN 113079733A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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Abstract
The invention discloses a sand farmland water retention method in the technical field of sand land reclamation, which comprises the specific steps of surface soil in-situ stripping, drilling and hole making, placing an anti-seepage bag, covering film around holes for water collection, combining the hole punching and hole making, anti-seepage bag planting measures and hole film covering measures, a soil profile space structure of coupling an underground local water-resisting layer and surface local catchment is formed in a dry farming farmland, the rainfall is collected to the crop planting area while the leakage of the rainfall into the deep soil is reduced, the collected rainwater is stored in the soil layer around the root system at the middle and lower parts, the reduction of the surface evaporation and the guarantee of the water requirement of the crops during the drought are facilitated, therefore, the crop yield reduction caused by drought is reduced, better water and fertilizer retention effects are achieved, and meanwhile, the used materials are degradable materials, and solid wastes such as straws can be effectively utilized.
Description
Technical Field
The invention relates to the technical field of sandy land reclamation, in particular to a sandy land farmland water retention method.
Background
Most of farmlands in northern China are dry farmlands, the growth and yield formation of crops are restricted due to insufficient rainfall and lack of irrigation, sandy soil is easy to seep downwards to enable water, water and fertilizer leakage are serious, the sandy soil is difficult to maintain in soil in the range of crop root systems, and the crops are easily affected by drought. The invention relates to a water retention technology for a farmland surrounding sandy land, which mainly comprises the technologies of furrow preparation, soil surface layer film covering, structural modifier doping, water retention agent adding, lower soil lining film and the like.
Document 1: liuqian branch, any jade, Wangzhitai, influence of sand ground lining film on wheat growth and yield [ J ] academic report of Gansu agriculture university, 2000, (02): 162) 166. The sand impermeable water-saving cultivation technology is always the focus of the research on the utilization of sand agriculture.
Document 2: the influence of the sand lining film on the growth and yield of the wheat is observed and analyzed by adopting a random block design on the growth conditions and the yields of the wheat in the film lining sand land (the depths are 60cm, 70cm and 90cm respectively) and the film-free sand land (contrast) of the scene-electricity secondary irrigation area, and the results show that: the seedling emergence stage of the wheat in the sand-lined film land is 2-4d earlier than that of the contrast land; in the measuring period, the average height, the leaf area index and the leaf dry mass of the wheat in the lining film sample are obviously higher than those of a control and are respectively increased by 1.45 percent, 70.9 percent and 48.5 percent compared with the control, wherein the growth condition of the wheat in the lining film depth of 70cm is the best, and is respectively increased by 23 percent, 9.1 percent and 86.7 percent compared with the control; the yield measurement result after harvesting shows that the yield of the wheat with the lining film is increased by 3495kg/ha on average compared with the control, and the maximum yield increase amplitude is 189%.
Document 3: the test result of manually laying the water-resisting layer shows that the water-resisting layer has obvious functions of preserving water and fertilizer, increasing crop yield and promoting growth and development of forest seedlings. The water barrier material can be plastic film or clay. The laying depth is preferably 30cm for crops, and 50cm for forest seedlings. Compared with a control area, the test in 1981 shows that soybean is increased by 263.5% and then corn is increased by 104.7% due to the fact that a water-resisting layer is added to influence the yield; the 1982 test shows that the yield of the soybean is increased by 277.8%, the yield of the corn is increased by 238.4%, and the economic benefit is good. And (3) paving a water-resisting layer by using a plastic film in a depth of 5cm in the sand, so that the periphery and the bottom surface are in a closed state, and 2 comparison areas are reserved on the upper surface. 1981-1982 agricultural and forestry plants were planted in the test area for two consecutive years to observe the water-resisting effect of the film plastic.
Patent 1: a method for reconstructing soil body in sand field includes such steps as mixing powdered coal ash with sand and sand, compacting to form an artificial fertilizer layer, ensuring the air permeability of soil and a certain capacity of supporting water and fertilizer. Patent 2: the planting structure and the planting method for the desert, the sand land and the saline-alkali soil have the advantages that the survival rate of planting crops, ecological forests or vegetations in the desert, the sand land and the saline-alkali soil is high, and the growth is fast. Patent 3: the seepage-proofing groove for sand field construction eliminates the defect of water and fertilizer leakage of the sand floor drain, can change sand field in which the grass cannot grow into fertile field, and is particularly suitable for planting rice. The facility investment can be recovered in 2-3 years, the service life can reach hundreds of years, and the economic benefit, the social benefit and the ecological benefit are very obvious. Patent 4: a method for building a water-saving ditch on sand land not only reduces the water evaporation, but also can reduce the erosion of rainwater to the water-saving ditch, ensure the stability of the water-saving ditch, and can reduce the water evaporation by covering a film on a slope, thereby being beneficial to water retention, fertilizer retention and temperature rise. Patent 5: a nutrition bowl for sand plant cultivation: the problem of traditional nutrition bowl bottom seted up big hole, the water-retaining ability is relatively poor, and moisture easily runs off, and the link that plants to sand plant comparatively difficult lies in that the water content is few in the sand, is not suitable for the early survival of plant is solved. Patent 6: a saline-alkali soil plant planting system avoids that a breathable impermeable layer is damaged by roots of plants and then loses the impermeable effect. Patent 7: a method for improving saline-alkali soil and a method for planting the saline-alkali soil do not need to wash a large amount of fresh water resources, so that the water consumption is effectively reduced, and the application range of the method is expanded. Patent 8: the desert planting structure, the method for improving desert soil and the planting method are obtained by applying the air-permeable and anti-seepage sand technology in a desert rice planting experiment, the water saving rate of the air-permeable and anti-seepage sand technology is up to more than 70% compared with the water saving rate of the conventional technology, the fertilizer saving effect is extremely obvious, the water quality of a rice planting pond is clear, the rice growth potential is strong, and the yield and the quality are excellent. Patent 9: an anti-seepage air-permeable potted plant container and a preparation method thereof utilize a material with good anti-seepage air-permeable performance to be applied to the potted plant container, effectively prevent water in the potted plant, maintain the water needed by the plant, and have the air-permeable performance while being waterproof. The impermeable and air permeable potted plant container can be widely used for planting various potted plants, transplanting garden nurseries and planting crops in arid areas.
The sand water-retaining technology in the above patent is mainly used for irrigating farmlands or planting forest trees; the lower layer of the lining film seepage-proofing technology needs to dig a groove, and the efficiency is low when the groove is dug deeply; after the anti-seepage sand is laid, the anti-seepage sand can be damaged during cultivation.
Based on the technical scheme, the invention designs a water retention method for the sandy farmland to solve the problems.
Disclosure of Invention
The invention aims to provide a water retention method for a sandy farmland, so as to solve the problems.
In order to achieve the purpose, the invention provides the following technical scheme: a water retention method for a sandy farmland comprises the specific steps of surface soil in-situ stripping, drilling and hole making, placement of an anti-seepage bag and film covering and water collection around holes.
In-situ stripping of surface soil: before drilling, shoveling out a surface soil layer with the thickness of 10cm within the range of 10-15cm from the center of the drilled hole, uniformly mixing the surface soil layer with crushed straws (the volume ratio is 2:1), and filling the mixture into a non-woven fabric bag with a handle and the height of 10cm for later use (being convenient for applying fertilizer or organic fertilizer at the lower part of the non-woven fabric bag before sowing).
Drilling and making holes: adopting quincuncial pile type staggered arrangement to arrange drill holes, wherein the diameter of each drill hole is 20-30cm, the distance between the drill holes is determined according to the distance between planted crops, the drill holes are larger than the diameter of each drill hole by more than 20cm, and the depth of each drill hole is 60-80 cm;
placing an anti-seepage bag: filling drilled sand and soil at the bottom of the seepage-proofing bag, wherein the thickness of the drilled sand and soil is 20 cm; mixing the rest sandy soil and pulverized corn stalk (length less than 1cm), and packaging into an impervious bag (volume ratio of 5:1) with thickness of 50 cm; lightly vibrating to make it contact with the soil at the lower part tightly, and placing the seepage-proofing bag into the drilled hole; finally, a non-woven cloth bag filled with surface soil mixture is filled, and a long cone is inserted into the bottom of the inner bag for perforating, so as to be beneficial to the underwater seepage of the upper layer.
Film covering and water collecting around the hole: and (3) piling up the sandy soil around the hole periphery within the range of 5cm, trimming into a slope inclined towards the hole at about 30 degrees, aligning with the upper outer side of the seepage-proofing bag, paving a plastic film along the upper edge of the inner side of the seepage-proofing bag to the neck, and covering and fixing the plastic film by using the redundant surface soil mixture.
Preferably, the impermeable bag is made of non-woven fabrics into a double-layer impermeable bag with the diameter of 20cm-30 cm.
Preferably, the bottom of the seepage-proofing bag is padded with a round shape which is cut into 25-35cm by snow pear paper, and the round snow pear paper is rolled to be tightly attached to the seepage-proofing bag; the inner side of the anti-seepage bag is rolled into a cylinder shape by using rectangular snow pear paper and is put into the anti-seepage bag, the height of the cylinder is about 10cm, and the bottom of the paper cylinder is arranged at the inner side of the edge of the snow pear paper at the bottom of the bag.
Preferably, the outer-layer anti-seepage bag of the anti-seepage bag is funnel-shaped, the upper part of the anti-seepage bag is 5cm wide, the anti-seepage bag is inwards inclined by 30 degrees, the diameter of the lower straight cylinder part is 20-30cm, and the height of the lower straight cylinder part is 80 cm; the inner layer bag has a diameter of 20-30cm and a height of 15cm, and is provided with handles on two sides.
Compared with the prior art, the invention has the beneficial effects that: the method combines the hole punching and hole making, anti-seepage bag planting measures and hole periphery film covering measures, forms a soil profile structure with the underground local water-resisting layer coupled with the surface local catchment in the dry farming farmland, reduces the leakage of rainfall into deep soil, collects the rainfall around the holes into the crop planting area, particularly can promote the collection of water at the middle lower part of the soil profile, avoids the leakage of water and fertilizer into deeper layers, can increase the storage amount of the soil at the lower layer of the root area to more than 2 times according to theoretical estimation, is favorable for reducing the ineffective evaporation of the soil at the surface layer and improving the water supply capacity of the water in the soil at the lower layer to the crops during drought, thereby slowing down the reduction of the crop yield caused by drought and the leakage of the water and fertilizer at the lower layer, achieves better water and fertilizer preserving effects, simultaneously adopts degradable materials, and can also effectively utilize solid wastes such as straws and the.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the method of the present invention,
FIG. 2 is a cross-sectional view and a plan view of the impermeable bag structure and layout of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the outer layer of the seepage-proofing bag is a non-woven bag; 2. the inner layer of the impermeable bag is a non-woven bag; 3. coating a film around the hole; 4. drilling;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the 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 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 invention.
Referring to fig. 1-2, the present invention provides a technical solution: a sandy farmland water retention method comprises the specific steps of surface soil in-situ stripping, drilling 4 to make holes, placing an outer layer non-woven bag 1 of an anti-seepage bag, and covering a film 3 around the holes to collect water.
In-situ stripping of surface soil: shoveling a surface soil layer with the thickness of 10cm within the range of 10-15cm away from the center of the drilled hole 4 before drilling the hole 4, uniformly mixing the surface soil layer with crushed straws (the volume ratio is 2:1) and putting the mixture into a non-woven bag 2 with a handle and the height of 10cm for later use;
drilling 4 and making holes: adopting a quincuncial pile type staggered layout to pay off and arrange the drill holes 4, wherein the diameter of each drill hole 4 is 20-30cm, the distance between the drill holes 4 is determined according to the distance between planted crops and is required to be more than 20cm, and the depth of each drill hole 4 is 60-80 cm;
placing the non-woven fabric bag 1 on the outer layer of the anti-seepage bag: filling drilled sand and soil with the thickness of 20cm into the bottom of the non-woven fabric bag 1 on the outer layer of the impervious bag; mixing the rest sandy soil and pulverized corn stalk (length less than 1cm), and packaging into non-woven fabric bag 1 (volume ratio 5:1) with thickness of 50 cm; lightly vibrating to make it contact with the soil at the lower part tightly, and putting the non-woven fabric bag 1 at the outer layer of the anti-seepage bag into the drill hole 4; finally, the non-woven cloth bag 2 with the surface soil mixture is placed into the inner layer of the seepage-proofing bag, and the long cone is inserted into the bottom of the inner bag for punching, so as to be beneficial to the underwater seepage of the upper layer.
Wherein the outer layer non-woven fabric bag 1 of the anti-seepage bag is a double-layer outer layer non-woven fabric bag 1 made of non-woven fabrics, and the diameter is 20cm-30cm (corresponding to the diameter of the drill hole 4); the outer-layer non-woven fabric bag 1 of the anti-seepage bag and the outer-layer non-woven fabric bag 1 of the outer-layer anti-seepage bag are funnel-shaped, the upper part of the non-woven fabric bag is 5cm wide, the inner part of the non-woven fabric bag is 30 degrees inward, the diameter of the lower straight cylinder part is 20-30cm, and the height of the lower; the diameter of the non-woven fabric bag 1 at the outer layer of the inner-layer anti-seepage bag is 20cm-30cm, the height is 15cm, and the non-woven fabric bag is provided with handles at two sides; cutting the snow pear paper into a round shape of about 25-35cm, padding the snow pear paper at the bottom of the non-woven fabric bag 1 on the outer layer of the anti-seepage bag, and rolling the snow pear paper to be tightly attached to the non-woven fabric bag 1 on the outer layer of the anti-seepage bag; the inner side of the non-woven cloth bag 1 at the outer layer of the anti-seepage bag is rolled into a cylinder shape by using rectangular snow pear paper and is placed into the non-woven cloth bag 1 at the outer layer of the anti-seepage bag, the cylinder height is 10cm, and the bottom of the paper cylinder is arranged at the inner side of the edge of the snow pear paper at the bottom of the bag and is used for storing water permeated at the upper part and reducing the water seepage at.
Film covering 3 water collection around the hole: and piling up sandy soil around the holes within the range of 5cm, trimming into a slope inclined towards the holes at about 30 degrees, aligning with the upper outer side of the non-woven fabric bag 1 at the outer layer of the anti-seepage bag, paving a plastic film along the upper edge of the inner side of the non-woven fabric bag 1 at the outer layer of the anti-seepage bag to the neck, and covering and fixing the plastic film by using redundant surface soil mixture.
Example 1
The invention can be used for planting corns in single-row double-plant cave on sand in the chestnut brown area with uniform section, and the implementation mode is as follows:
step 1: and (6) positioning. After the corns in the last year are harvested (at the bottom of 9 months or at the beginning of 10 months), the holes are drilled 4 and positioned according to the size of the farmland plots, a wooden stick or a suction pipe is inserted into the center of each hole for marking, the holes 4 are drilled in the quincuncial pile type staggered arrangement, the distance between every two adjacent holes is 40cm, and the distance between every two adjacent holes is 50 cm.
Step 2: and taking surface soil. Before the hole 4 is drilled, the surface soil with the depth of 10cm within the range of 410cm of the drilled hole is shoveled out and placed on a plastic film, and the shoveling range is about 20cm away from the center of the drilled hole 4.
And step 3: a bore 4 is drilled. And (4) drilling holes 4 according to the marked positions by using a small cart ground drill, wherein the diameter of each drilled hole 4 is 20cm, and the depth of each drilled hole 4 is 80 cm.
And 4, step 4: and manufacturing a non-woven fabric bag 1 (figure 2) on the outer layer of the impervious bag. Making a double-layer anti-seepage bag outer layer non-woven bag 1 with the diameter of 20cm (corresponding to the diameter of the drilled hole 4) by using non-woven fabrics; the outer-layer non-woven fabric bag 1 of the anti-seepage bag at the outer layer of the anti-seepage bag is in a funnel shape, the upper part of the non-woven fabric bag is 5cm wide, the non-woven fabric bag is inwards inclined by 30 degrees, the diameter of the lower straight cylinder part is 20cm, and the height of the lower straight cylinder part is 80 cm; the diameter of the non-woven fabric bag 1 at the outer layer of the inner-layer anti-seepage bag is 20cm, the height of the non-woven fabric bag is 15cm, and the non-woven fabric bag is provided with handles at two sides; cutting the snow pear paper into a round shape of about 25cm, padding the snow pear paper at the bottom of the non-woven fabric bag 1 at the outer layer of the anti-seepage bag, and rolling the snow pear paper to be tightly attached to the non-woven fabric bag 1 at the outer layer of the anti-seepage bag; the inner side of the non-woven cloth bag 1 at the outer layer of the anti-seepage bag is rolled into a cylinder shape by using rectangular snow pear paper and is placed into the non-woven cloth bag 1 at the outer layer of the anti-seepage bag, the cylinder height is 10cm, and the bottom of the paper cylinder is arranged at the inner side of the edge of the snow pear paper at the bottom of the bag and is used for storing water permeated at the upper part and reducing the water seepage at.
And 5: and (6) loading soil. Filling drilled sand and soil with the thickness of 20cm into the bottom of the non-woven fabric bag 1 on the outer layer of the impervious bag; mixing the rest sandy soil and pulverized corn stalk (length less than 1cm), and packaging into non-woven fabric bag 1 (volume ratio 5:1) with thickness of 50 cm; lightly vibrating to make it contact with the soil at the lower part tightly, and putting the non-woven fabric bag 1 at the outer layer of the anti-seepage bag into the drill hole 4; finally, the non-woven cloth bag 2 with the surface soil mixture is placed into the inner layer of the seepage-proofing bag, and the long cone is inserted into the bottom of the inner bag for punching, so as to be beneficial to the underwater seepage of the upper layer.
Step 6: the periphery of the hole is covered with a film 3. And piling up sandy soil around the holes within the range of 5cm, trimming into a slope inclined towards the holes at about 30 degrees, aligning with the upper outer side of the non-woven fabric bag 1 at the outer layer of the anti-seepage bag, paving a plastic film along the upper edge of the inner side of the non-woven fabric bag 1 at the outer layer of the anti-seepage bag to the neck, and covering and fixing the plastic film by using redundant surface soil mixture.
And 7: fertilizing and planting corn in the hole. 1-2 days before corn is sowed in 15-25 days of 5 months, taking out the non-woven fabric bag 1 at the outer layer of the upper-layer impermeable bag, spreading a chemical fertilizer or an organic fertilizer, and pouring out all the soil in the upper-layer bag to cover the soil; and dibbling the corns by one hole at the middle position of the hole.
Example 2
Step 1: and (6) positioning. After harvesting previous crops in autumn in the last year (9 months or 10 months), positioning the drill holes 4 according to the sizes of farmland plots, inserting a wooden stick or a suction pipe into the center of each hole for marking, drilling the holes 4 in a quincuncial pile type staggered arrangement, wherein the distance between every two adjacent holes is 40cm, and the distance between every two adjacent holes is 60 cm.
Step 2: and taking surface soil. Before the hole 4 is drilled, the surface soil with the depth of 10cm within the range of 410cm of the drilled hole is shoveled out and placed on a plastic film, and the shoveling range is about 20cm away from the center of the drilled hole 4.
And step 3: a bore 4 is drilled. And (4) drilling holes 4 according to the marked positions by using a small cart ground drill, wherein the diameter of each drilled hole 4 is 20cm, and the depth of each drilled hole 4 is 80 cm.
And 4, step 4: and manufacturing a non-woven fabric bag 1 (figure 2) on the outer layer of the impervious bag. Making a double-layer anti-seepage bag outer layer non-woven bag 1 with the diameter of 20cm (corresponding to the diameter of the drilled hole 4) by using non-woven fabrics; the outer-layer non-woven fabric bag 1 of the anti-seepage bag and the outer-layer non-woven fabric bag 1 of the outer-layer anti-seepage bag are funnel-shaped, the upper part of the non-woven fabric bag is 5cm wide, the inner part of the non-woven fabric bag is 30 degrees, the diameter of the straight cylinder part at the lower part of the non-woven fabric bag is; the diameter of the non-woven fabric bag 1 at the outer layer of the inner-layer anti-seepage bag is 20cm, the height of the non-woven fabric bag is 15cm, and the non-woven fabric bag is provided with handles at two sides; cutting the snow pear paper into a round shape of about 25cm, padding the snow pear paper at the bottom of the non-woven fabric bag 1 at the outer layer of the anti-seepage bag, and rolling the snow pear paper to be tightly attached to the non-woven fabric bag 1 at the outer layer of the anti-seepage bag; the inner side of the non-woven cloth bag 1 at the outer layer of the anti-seepage bag is rolled into a cylinder shape by using rectangular snow pear paper and is placed into the non-woven cloth bag 1 at the outer layer of the anti-seepage bag, the cylinder height is 10cm, and the bottom of the paper cylinder is arranged at the inner side of the edge of the snow pear paper at the bottom of the bag and is used for storing water permeated at the upper part and reducing the water seepage at.
And 5: and (6) loading soil. Filling drilled sand and soil with the thickness of 20cm into the bottom of the non-woven fabric bag 1 on the outer layer of the impervious bag; mixing the rest sandy soil and pulverized corn stalk (length less than 1cm), and packaging into non-woven fabric bag 1 (volume ratio 5:1) with thickness of 50 cm; lightly vibrating to make it contact with the soil at the lower part tightly, and putting the non-woven fabric bag 1 at the outer layer of the anti-seepage bag into the drill hole 4; finally, the non-woven cloth bag 2 with the surface soil mixture is placed into the inner layer of the seepage-proofing bag, and the long cone is inserted into the bottom of the inner bag for punching, so as to be beneficial to the underwater seepage of the upper layer.
Step 6: the periphery of the hole is covered with a film 3. And piling up sandy soil around the holes within the range of 5cm, trimming into a slope inclined towards the holes at about 30 degrees, aligning with the upper outer side of the non-woven fabric bag 1 at the outer layer of the anti-seepage bag, paving a plastic film along the upper edge of the inner side of the non-woven fabric bag 1 at the outer layer of the anti-seepage bag to the neck, and covering and fixing the plastic film by using redundant surface soil mixture.
And 7: fertilizing and planting corn in the hole. 1-2 days before corn is sowed in 15-25 days of 5 months, taking out the non-woven fabric bag 1 at the outer layer of the upper-layer impermeable bag, spreading a chemical fertilizer or an organic fertilizer, and pouring out all the soil in the upper-layer bag to cover the soil; and (4) dibbling the potatoes in the middle of the hole.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. A sand farmland water retention method is characterized in that: the method comprises the specific steps of surface soil in-situ stripping, drilling and making holes, placing an anti-seepage bag, covering a film around the holes for water collection,
in-situ stripping of surface soil: shoveling a surface soil layer with the thickness of 10cm within the range of 10-15cm from the center of the drilled hole before drilling, uniformly mixing the surface soil layer with crushed straws, and putting the mixture into a non-woven fabric bag with a handle and the height of 10cm for later use;
drilling and making holes: adopting quincuncial pile type staggered arrangement to arrange drill holes, wherein the diameter of each drill hole is 20-30cm, the distance between the drill holes is determined according to the distance between planted crops, the drill holes are larger than the diameter of each drill hole by more than 20cm, and the depth of each drill hole is 60-80 cm;
placing an anti-seepage bag: filling drilled sand and soil at the bottom of the seepage-proofing bag, wherein the thickness of the drilled sand and soil is 20 cm; mixing the rest sandy soil and crushed corn stalks, and filling into an anti-seepage bag with the thickness of 50 cm; lightly vibrating to make it contact with the soil at the lower part tightly, and placing the seepage-proofing bag into the drilled hole; finally, a non-woven cloth bag filled with surface soil mixture is filled, and a long cone is inserted into the bottom of the inner bag for perforating, so as to be beneficial to the underwater seepage of the upper layer.
Film covering and water collecting around the hole: and (3) piling up sandy soil around the hole within the range of 5cm, building a slope inclined towards the hole at an angle of 30 degrees, aligning the slope with the upper outer side of the seepage-proofing bag, paving a plastic film along the upper edge of the inner side of the seepage-proofing bag to the neck, and covering and fixing the plastic film by using redundant surface soil mixture.
2. The sandy farmland water retention method according to claim 1, which is characterized in that: the seepage-proofing bag is a double-layer seepage-proofing bag made of non-woven fabrics.
3. The sandy farmland water retention method according to claim 1, which is characterized in that: the bottom of the seepage-proofing bag is padded with a round paper cut into 25-35cm, and the round paper is rolled to be tightly attached to the seepage-proofing bag; the inner side of the anti-seepage bag is rolled into a cylinder shape by using rectangular snow pear paper and is put into the anti-seepage bag, the height of the cylinder is 10cm, and the bottom of the paper cylinder is arranged at the inner side of the edge of the snow pear paper at the bottom of the bag.
4. The sandy farmland water retention method according to claim 1, which is characterized in that: the outer anti-seepage bag of the anti-seepage bag is funnel-shaped, the upper part of the anti-seepage bag is 5cm wide, the anti-seepage bag is inwards inclined by 30 degrees, the diameter of the lower straight cylinder part is 20-30cm, and the height of the lower straight cylinder part is 80 cm; the inner layer bag has a diameter of 20-30cm and a height of 15cm, and is provided with handles on two sides.
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