CN104041379A - Drought and extreme drought region sand land 7.5cm-10.5cm ground diameter red date tree well type irrigation method - Google Patents
Drought and extreme drought region sand land 7.5cm-10.5cm ground diameter red date tree well type irrigation method Download PDFInfo
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Abstract
The invention relates to the technical field of red date sapling water-saving irrigation and discloses a drought and extreme drought region sand land 7.5cm-10.5cm ground diameter red date tree well type irrigation method. The method comprises the following steps of determining the forest land soil of red date trees with 7.5cm-10.5cm planting ground diameter to be sand land of drought and extreme drought regions; selecting a vertical shaft pipe with holes, wherein the vertical shaft pipe with the holes comprises a pipe body, the internal diameter of the pipe body is 10cm-12cm, the height of the pipe body is 20cm-25cm, the lower end of the pipe body is fixed to a sealing plate, and water outlets are distributed in the pipe body at intervals. Compared with the flooding irrigation mode, the drought and extreme drought region sand land 7.5cm-10.5cm ground diameter red date tree well type irrigation method is capable of saving 74%-79% of water; compared with the furrow irrigation mode, the method is capable of saving 39%-51% of water; compared with the common trickle irrigation mode, the method is capable of saving 20%-35% of water; according to the method, the water source is effectively saved, the related technological problems of earth surface water accumulation, surface runoff, water dropper blockage and the like are solved, the maturity of red dates is facilitated, the yield and the quality are improved, and for the drought and extreme drought regions, the water-saving rate is quite considerable.
Description
Technical field
The present invention relates to red date treelet water-saving irrigation technique field, is a kind of arid and utmost point arid biogeographic zone sandy soil ground leading thread 7.5cm to 10.5cm red jujube tree well formula irrigation method.
Background technology
Implement in full Forestry Development Strategy, bring into play better Forestry Ecological, economy, society, carbon remittance and cultural five functional, it is national development strategy, planting trees, making our country green is national strategy and civic duties and programme area, China will complete 6,000,000 hectares of new afforestation every year at no distant date, more than completing every year (planting) 90,000,000,000 strains of forest afforestation.China approximately 1/3rd areas belong to arid, Extreme Dry drought-hit area, in arid and extreme drought area, forest need to irrigate to ensure the normal growth growth of forest, irrigation is directly connected to existence and the g and D of forest, China is a country that drought and water shortage is serious on the other hand, freshwater resources total amount is 28000 billion cubic meters, account for 6% of global water resources, be only second to Brazil, Russian and Canadian, occupy the 4th, the world, but only have per capita 2200 cubic metres, it is only 1/4 of world average level, rank 121 in the world, one of 13 countries that water resource is the poorest per capita in the whole world.Therefore, the contradiction of shortage of water resources, has brought and has had a strong impact on Sustainable Development Strategy of China, and forestry water-saving irrigation has highlighted the critical role in forestry, ecological construction system, be the important measures that improve and ensure afforestation effect, be the inevitable requirement of forestry and social sustainable development simultaneously.China is the country of origin of red date, also be maximum in the world red dates production state, red date cultivated area has exceeded 2,250 ten thousand mu in recent years, gross annual output amount is more than 4824.8 ten thousand tons, account for world's jujube tree cultivated area and the more than 60% of output, wherein red date cultivated area approximately 50% is distributed in arid, Extreme Dry drought-hit area, only Xinjiang's Tarim Basin cultivated area in Xinjiang exceedes 7,000,000 mu, red date is planted due to market stability, price is good, high efficiency, and red date is economical and ecological dual-purpose seeds, so area under cultivation presents the trend of increase year after year, red date has become seeds of developing area maximum in economic forest, therefore carry out effective water-saving irrigation significant.The representative type of red date Main Cultivation soil is sandy soil, and sandy soil are also the red date optimum soil typess of growing.The red date that leading thread is 7.5-10.5cm is at present irrigated in cultivating process 3 kinds of modes conventionally, and flood irrigation mode (accounts for 60%, ensureing under the condition of red date normal growth every mu of annual water requirement 1800m
3), trench planting furrow irrigation mode (accounts for 30%, is ensureing under the condition of red date normal growth every mu of annual water requirement 765m
3), ground drip irrigation mode (accounts for 10%, is ensureing under the condition of red date normal growth every mu of annual water requirement 581m
3).Along with socioeconomic development, the raising that water-efficient irrigation requires, and the red date root system underground space is distributed, irrigation program, the ground moistening model of drip irrigation, the large quantity research of migration rule of underground moisture etc. after irrigating, the area of flood irrigation mode reduces (water use efficiency is very low) year by year, ground drip irrigation area increases gradually, in the large quantity research of irrigating, this irrigation method of sub-irrigation is a kind of irrigation method of water saving the most of domestic and international current pursuit, domestic sub-irrigation mature technology and the corollary equipment that still there is no large-area applications, because and ground drip irrigation is compared, sub-irrigation can not form on earth's surface ponding and runoff, greatly reduce surface evaporation, thereby reduction irrigation volume reaches effect and the object of water saving.The technological difficulties of sub-irrigation are to be difficult to solve in the blockage problem of underground water dropper, simultaneously because irrigation volume is very little, must directly irrigate root, condition ensures the normal growth of forest again, therefore sub-irrigation must be made red date root system underground space distribution (because leading thread (size) difference of red date of a sizing level clear, the underground space of root system distributes different), ground moistening model (requiring the root system natural distribution space of moistening space and a sizing level to match) after irrigation, it is what soil types (because soil type, its moistening space difference of identical duty, as large in sandy soil, clay is little, water retention capacity difference), irrigate interval (because irrigation volume is little, in arid, Extreme Dry drought-hit area, lack of water can affect forest normal growth immediately, after dropping to certain numerical value, soil moisture content must irrigate, different soil typess is irrigated difference interval, as short in sandy soil, the clay time is long), the migration rule of underground moisture (because different soil types after irrigating, the migration rule difference of underground moisture, the underground space of root system distributes different, certain its moistening space difference of duty, irrigate difference interval).
Summary of the invention
The invention provides a kind of arid and utmost point arid biogeographic zone sandy soil ground leading thread 7.5cm to 10.5cm red jujube tree well formula irrigation method, overcome the deficiency of above-mentioned prior art, it can effectively solve the low problem of water use efficiency in arid and utmost point arid biogeographic zone sandy soil ground ordinary flood irrigation, furrow irrigation and ground drip irrigation irrigation method.
Technical scheme of the present invention realizes by following measures: a kind of arid and utmost point arid biogeographic zone sandy soil ground leading thread 7.5cm to 10.5cm red jujube tree well formula irrigation method, carry out in the steps below: the first step, the forest ground soil of determining the red jujube tree that plantation leading thread is 7.5cm to 10.5cm is the sandy soil ground of arid and utmost point arid biogeographic zone, second step, select vertical shaft pipe with holes, vertical shaft pipe with holes comprises body, the internal diameter of body is 10cm to 12cm, high is 20cm to 25cm, the lower end of body is fixed with sealing plate, on body, be intervally distributed with apopore, water inlet is arranged at the top of body, the apopore of body the top is 3cm to 6cm apart from body distance from top, the aperture of apopore is 0.1cm to 1cm, on every strain red jujube tree ground surface of red jujube tree strain spacing direction, make a call to two holes that be symmetric and vertical shaft pipe with holes matches, the position in hole is 45cm to 55cm apart from the earth's surface air line distance of every strain red jujube tree, by in vertical shaft pipe embedding hole with holes, ensure vertical shaft pipe with holes 1cm to 2cm above ground level, the 3rd step is installed conventional drip irrigation appliance in this forest ground, and the corresponding every strain red jujube tree of drip irrigation appliance stays two water droppers, and the opening of the vertical shaft pipe with holes upper end that the delivery port of each water dropper is installed with second step is respectively corresponding, the 4th step, carrying out normal conventional dropper irrigates, the flow of the each water dropper of drip irrigation appliance is 16L/h to 22L/h, the water of drip irrigation emitter enters vertical shaft pipe with holes inside, after water in vertical shaft pipe with holes exosmoses, directly the underground root system of red jujube tree is irrigated, make soil wetting pattern cover the Root Distribution region of every strain red jujube tree.
The further optimization and/or improvements to foregoing invention technical scheme below:
The each water dropper irrigation quantity of above-mentioned each irrigation is 90L to 110L, and every tree has two water droppers, and the irrigation volume of at every turn irrigating every strain red jujube tree is 180L to 220L.
The above-mentioned area that is less than 100mm in annual precipitation, irrigated once April every 8 days to 9 days, and irrigated once May every 5 days to 6 days, and irrigated once June to August every 4 days to 5 days, irrigated once September every 6 days to 7 days, and irrigated once October every 10 days to 12 days.
Above-mentioned stopping every year, after irrigation, being taken out vertical shaft pipe with holes, clears up the root system on vertical shaft pipe with holes, and the root system in the hole on vertical shaft pipe with holes is removed, and ensures that on vertical shaft pipe, hole can normally seep water, so that next time, continuation was used.
The present invention reaches 74% to 79%, reaches 39% to 51%, reaches 20% to 35% with respect to conventional drip irrigation irrigation method water saving with respect to the water saving of furrow irrigation irrigation method with respect to the water saving of flood irrigation irrigation method, therefore effectively saving water resource of the present invention, solve the correlation technique difficult problems such as surface pond, rainwash, emitter clogging, and be conducive to that red date is ripe to improve the yield and quality, especially concerning arid, utmost point arid biogeographic zone, water saving efficiency is quite objective.
Embodiment
The present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1, this arid and utmost point arid biogeographic zone sandy soil ground leading thread 7.5cm to 10.5cm red jujube tree well formula irrigation method, carry out in the steps below: the first step, the forest ground soil of determining the red jujube tree that plantation leading thread is 7.5cm to 10.5cm is the sandy soil ground of arid and utmost point arid biogeographic zone, second step, select vertical shaft pipe with holes, vertical shaft pipe with holes comprises body, the internal diameter of body is 10cm to 12cm, high is 20cm to 25cm, the lower end of body is fixed with sealing plate, on body, be intervally distributed with apopore, water inlet is arranged at the top of body, the apopore of body the top is 3cm to 6cm apart from body distance from top, the aperture of apopore is 0.1cm to 1cm, on every strain red jujube tree ground surface of red jujube tree strain spacing direction, make a call to two holes that be symmetric and vertical shaft pipe with holes matches, the position in hole is 45cm to 55cm apart from the earth's surface air line distance of every strain red jujube tree, by in vertical shaft pipe embedding hole with holes, ensure vertical shaft pipe with holes 1cm to 2cm above ground level, the 3rd step is installed conventional drip irrigation appliance in this forest ground, and the corresponding every strain red jujube tree of drip irrigation appliance stays two water droppers, and the opening of the vertical shaft pipe with holes upper end that the delivery port of each water dropper is installed with second step is respectively corresponding, the 4th step, carrying out normal conventional dropper irrigates, the flow of the each water dropper of drip irrigation appliance is 16L/h to 22L/h, the water of drip irrigation emitter enters vertical shaft pipe with holes inside, after water in vertical shaft pipe with holes exosmoses, directly the underground root system of red jujube tree is irrigated, make soil wetting pattern cover the Root Distribution region of every strain red jujube tree.The precipitation of arid and utmost point arid biogeographic zone whole year is less than 100mm.
Embodiment 2, this arid and utmost point arid biogeographic zone sandy soil ground leading thread 7.5cm to 10.5cm red jujube tree well formula irrigation method, carry out in the steps below: the first step, the forest ground soil of the red jujube tree that definite plantation leading thread is 7.5cm or 10.5cm is the sandy soil ground of arid and utmost point arid biogeographic zone, second step, select vertical shaft pipe with holes, vertical shaft pipe with holes comprises body, the internal diameter of body is 10cm or 12cm, height is 20cm or 25cm, the lower end of body is fixed with sealing plate, on body, be intervally distributed with apopore, water inlet is arranged at the top of body, the apopore of body the top is 3cm or 6cm apart from body distance from top, the aperture of apopore is 0.1cm or 1cm, on every strain red jujube tree ground surface of red jujube tree strain spacing direction, make a call to two holes that be symmetric and vertical shaft pipe with holes matches, the position in hole is 45cm or 55cm apart from the earth's surface air line distance of every strain red jujube tree, by in vertical shaft pipe embedding hole with holes, ensure vertical shaft pipe with holes 1cm above ground level or 2cm, the 3rd step is installed conventional drip irrigation appliance in this forest ground, and the corresponding every strain red jujube tree of drip irrigation appliance stays two water droppers, and the opening of the vertical shaft pipe with holes upper end that the delivery port of each water dropper is installed with second step is respectively corresponding, the 4th step, carrying out normal conventional dropper irrigates, the flow of the each water dropper of drip irrigation appliance is 16L/h or 22L/h, the water of drip irrigation emitter enters vertical shaft pipe with holes inside, after water in vertical shaft pipe with holes exosmoses, directly the underground root system of red jujube tree is irrigated, make soil wetting pattern cover the Root Distribution region of every strain red jujube tree.
Embodiment 3, as above-described embodiment preferably, irrigate each water dropper irrigation quantity is 90L to 110L at every turn, every tree has two water droppers, the irrigation volume of at every turn irrigating every strain red jujube tree is 180L to 220L.
Embodiment 4, as above-described embodiment preferably, be less than the area of 100mm in annual precipitation, irrigated once April every 8 days to 9 days, irrigated once May every 5 days to 6 days, irrigated once June to August every 4 days to 5 days, and irrigated once September every 6 days to 7 days, and irrigated once October every 10 days to 12 days.Annual precipitation is less than 100mm, root system core space is that the soil moisture content at forest trunk vertical lower 40-60cm place starts to irrigate in the time reaching 14-15%, taking red date forest as the center of circle, radius is 145cm to 155cm, within the scope of the area of a circle forming and the cylinder underground space of underground vertical depth 80cm to 85cm, account for 80% to 100% of nature Root Distribution, between this irrigation norm humid region, can meet 7.5cm to the 10.5cm red jujube tree root system underground space and distribute more than 80%.
Embodiment 5, as above-described embodiment preferably, after stopping every year irrigating, vertical shaft pipe with holes is taken out, clear up the root system on vertical shaft pipe with holes, the root system in the hole on vertical shaft pipe with holes is removed, ensure that on vertical shaft pipe, hole can normally seep water, use to continue next time.
The inventive method is evaluated:
Place: good wood test breeding base, Wenxiu County, Aksu, Xinjiang.
Kind: grey jujube.
Implement place and environment condition:
Experimental field be located in Northern Margin of Tarim Basin, Xinjiang, apart from Aksu City 30km, apart from the 980km of Urumqi City.Geographical position (E80 ° 32 ', N41 ° 15 '), height above sea level 1103.8m, implementing forest land area is 30 mu, seeding row spacing 3m × 4m, belong to continental arid desert weather, it is characterized in that four seasons distribution is uneven, precipitation rareness, day and night temperature is large, many cool winds weather, spring is shorter, often there is cold in the late spring phenomenon to occur, summer is hot and be dried, rainfall year, border changed greatly, average annual rainfall 63.4mm, evaporation discharge 2856.3mm, 10.1 DEG C of average annual temperature, extreme low temperature-27.4 DEG C, 2916.8 DEG C to 3198.6 DEG C of >=10 DEG C of accumulated temperature, average annual sunshine duration 2747.7h, 185 days frost-free seasons, soil is sandy loam, pH value 8.51 to 9.75, organic between 0.24% to 1.62%, thick in soil, be alkalescent, be about 60cm.
The pilot forest that wherein adopts the embodiment of the present invention 7, embodiment 8 and embodiment 9 methods to irrigate is respectively 5 mu; Contrast woods 1 adopts flood irrigation mode, 5 mu of areas; Contrast woods 2 adopts furrow irrigation mode, 5 mu of areas; Contrast woods 3 adopts conventional ground drip irrigation, 5 mu of areas; Except irrigation method is different with irrigation volume, 30 mu of other management conditions of red date garden are all identical.
Embodiment 6, this arid and utmost point arid biogeographic zone sandy soil ground leading thread 7.5cm to 10.5cm red jujube tree well formula irrigation method, carry out in the steps below: the first step, the forest ground soil of determining the red jujube tree that plantation leading thread is 7.5cm is the sandy soil ground of arid and utmost point arid biogeographic zone, second step, select vertical shaft pipe with holes, vertical shaft pipe with holes comprises body, the internal diameter of body is 10cm, height is 20cm, the lower end of body is fixed with sealing plate, on body, be intervally distributed with apopore, water inlet is arranged at the top of body, the apopore of body the top is 3cm apart from body distance from top, the aperture of apopore is 0.1cm, on ground surface below every strain red jujube tree, make a call to two and be symmetric the hole matching with vertical shaft pipe with holes, the position in hole is 45cm apart from the earth's surface air line distance of every strain red jujube tree, by in vertical shaft pipe embedding hole with holes, ensure vertical shaft pipe with holes 1cm above ground level, the 3rd step is installed conventional drip irrigation appliance in this forest ground, and the corresponding every strain red jujube tree of drip irrigation appliance stays two water droppers, and the opening of the vertical shaft pipe with holes upper end that the delivery port of each water dropper is installed with second step is respectively corresponding, the 4th step, carrying out normal conventional dropper irrigates, the flow of the each water dropper of drip irrigation appliance is 16L/h, the each water dropper irrigation quantity of each irrigation is 90L, the irrigation volume of every strain red jujube tree is 180L, the water of drip irrigation emitter enters vertical shaft pipe with holes inside, after exosmosing, water in vertical shaft pipe with holes directly the underground root system of red jujube tree is irrigated, make soil wetting pattern cover the Root Distribution region of every strain red jujube tree, irrigated once April every 8 days, irrigated once May every 5 days, irrigated once June to August every 4 days, irrigated once September every 6 days, irrigated once October every 10 days.
Embodiment 7, this arid and utmost point arid biogeographic zone sandy soil ground leading thread 7.5cm to 10.5cm red jujube tree well formula irrigation method, carry out in the steps below: the first step, the forest ground soil of determining the red jujube tree that plantation leading thread is 10.5cm is the sandy soil ground of arid and utmost point arid biogeographic zone, second step, select vertical shaft pipe with holes, vertical shaft pipe with holes comprises body, the internal diameter of body is 12cm, height is 25cm, the lower end of body is fixed with sealing plate, on body, be intervally distributed with apopore, water inlet is arranged at the top of body, the apopore of body the top is 6cm apart from body distance from top, the aperture of apopore is 1cm, on ground surface below every strain red jujube tree, make a call to two and be symmetric the hole matching with vertical shaft pipe with holes, the position in hole is 55cm apart from the earth's surface air line distance of every strain red jujube tree, by in vertical shaft pipe embedding hole with holes, ensure vertical shaft pipe with holes 2cm above ground level, the 3rd step is installed conventional drip irrigation appliance in this forest ground, and the corresponding every strain red jujube tree of drip irrigation appliance stays two water droppers, and the opening of the vertical shaft pipe with holes upper end that the delivery port of each water dropper is installed with second step is respectively corresponding, the 4th step, carrying out normal conventional dropper irrigates, the flow of the each water dropper of drip irrigation appliance is 22L/h, the each water dropper irrigation quantity of each irrigation is 110L, the irrigation volume of every strain red jujube tree is 220L, the water of drip irrigation emitter enters vertical shaft pipe with holes inside, after exosmosing, water in vertical shaft pipe with holes directly the underground root system of red jujube tree is irrigated, make soil wetting pattern cover the Root Distribution region of every strain red jujube tree, irrigated once April every 9 days, irrigated once May every 6 days, irrigated once June to August every 5 days, irrigated once September every 7 days, irrigated once October every 12 days.
Embodiment 8, this arid and utmost point arid biogeographic zone sandy soil ground leading thread 7.5cm to 10.5cm red jujube tree well formula irrigation method, carry out in the steps below: the first step, the forest ground soil of determining the red jujube tree that plantation leading thread is 9.3cm is the sandy soil ground of arid and utmost point arid biogeographic zone, second step, select vertical shaft pipe with holes, vertical shaft pipe with holes comprises body, the internal diameter of body is 10cm, height is 25cm, the lower end of body is fixed with sealing plate, on body, be intervally distributed with apopore, water inlet is arranged at the top of body, the apopore of body the top is 5cm apart from body distance from top, the aperture of apopore is 0.5cm, on ground surface below every strain red jujube tree, make a call to two and be symmetric the hole matching with vertical shaft pipe with holes, the position in hole is 50cm apart from the earth's surface air line distance of every strain red jujube tree, by in vertical shaft pipe embedding hole with holes, ensure vertical shaft pipe with holes 1cm above ground level, the 3rd step is installed conventional drip irrigation appliance in this forest ground, and the corresponding every strain red jujube tree of drip irrigation appliance stays two water droppers, and the opening of the vertical shaft pipe with holes upper end that the delivery port of each water dropper is installed with second step is respectively corresponding, the 4th step, carrying out normal conventional dropper irrigates, the flow of the each water dropper of drip irrigation appliance is 16L/h, the each water dropper irrigation quantity of each irrigation is 96L, the irrigation volume of every strain red jujube tree is that the water of 192L drip irrigation emitter enters vertical shaft pipe with holes inside, after exosmosing, water in vertical shaft pipe with holes directly the underground root system of red jujube tree is irrigated, make soil wetting pattern cover the Root Distribution region of every strain red jujube tree, irrigated once April every 8 days, irrigated once May every 6 days, irrigated once June to August every 4 days, irrigated once September every 7 days, irrigated and once (fill with twice) October every 10 days.
Embodiment 6, embodiment 7 and embodiment irrigate respectively 38 times for 8 whole years, every mu of annual total amount of irrigating is respectively: embodiment 6 is that 376 cubic metres, embodiment 7 are that 463 cubic metres, embodiment 8 are 406 cubic metres, 0.3 yuan to 0.5 yuan of the each cost of vertical shaft pipe with holes, each vertical shaft pipe with holes is installed 0.5 yuan to 1 yuan of labour cost, 1220 yuan every mu of overall drip irrigation irrigation installation and installation costs, cost increases by 20% to 25%;
Contrast woods 1 is annual irrigates 6 times, irrigates 300 cubic metres for every mu at every turn, and every mu of annual 1800 cubic metres of total amount of irrigating, without irrigation installation and installation cost;
Contrast woods 2 is annual irrigates 9 times, irrigates 85 cubic metres for every mu at every turn, and every mu of annual 765 cubic metres of total amount of irrigating, without irrigation installation and installation cost;
Contrast woods 3 is annual irrigates 44 times, water dropper flow is 20L/h, irrigation period is between this irrigation norm of 6h(and method humid region, can meet the 9.3cm red date root system underground space to distribute more than 80%), every strain red jujube tree adopts two water droppers, dropping point position is identical with embodiment 9 with embodiment 7, embodiment 8, every mu of annual irrigation total amount is 581 cubic metres, 980 yuan every mu of drip irrigation irrigation installation and installation costs.
Embodiment 6 than contrast woods 1 every mu of irrigation volume reduced 1424 cubic metres, water consumption be contrast woods 1 21%, water saving reaches 79%, than contrast woods 2 every mu of irrigation volume reduced 389 cubic metres, water consumption be contrast woods 2 49%, water saving reaches 51%, than contrast woods 3 every mu of irrigation volume reduced 205 cubic metres, water consumption be contrast woods 3 65%, water saving reaches 35%;
Embodiment 7 than contrast woods 1 every mu of irrigation volume reduced 1337 cubic metres, water consumption be contrast woods 1 26%, water saving reaches 74%, than contrast woods 2 every mu of irrigation volume reduced 302 cubic metres, water consumption be contrast woods 2 61%, water saving reaches 39%, than contrast woods 3 every mu of irrigation volume reduced 118 cubic metres, water consumption be contrast woods 3 80%, water saving reaches 20%;
Embodiment 8 than contrast woods 1 every mu of irrigation volume reduced 1394 cubic metres, water consumption be contrast woods 1 23%, water saving reaches 77%, than contrast woods 2 every mu of irrigation volume reduced 359 cubic metres, water consumption be contrast woods 2 53%, water saving reaches 47%, than contrast woods 3 every mu of irrigation volume reduced 175 cubic metres, water consumption be contrast woods 3 70%, water saving reaches 30%.
This shows, according to the above embodiment of the present invention method, the inventive method reaches 74% to 79%, reaches 39% to 51%, reaches 20% to 35% with respect to conventional drip irrigation irrigation method water saving with respect to the water saving of furrow irrigation irrigation method with respect to the water saving of flood irrigation irrigation method; Although method cost of the present invention increases to some extent, water-saving result is obvious, and water is nonrenewable resources, the inventive method is saving water resource effectively, improves efficiency of water application, and method is simple, for the mankind benefit, make huge contribution for effectively improving the ecological environment beyond doubt.
Autumn embodiment 6, embodiment 7, embodiment 8, contrast woods 1, contrast woods 2 and red date output, quality according to woods 3 are investigated, are measured and survey the red date single fruit size of product: embodiment 6, embodiment 7 and embodiment 8 than contrast woods 1 and large (the large 0.2cm of average length of contrast woods 2 fruits, the large 0.1cm of diameter), embodiment 6, embodiment 7 and embodiment 8 be not with to contrast woods 3 single fruit difference in size remarkable, and contrast woods 1 and contrast woods 2 single fruit difference in size are not remarkable; Single per mu yield embodiment 6, embodiment 7 and embodiment 8 more (being respectively 331kg, 328kg, 330kg), contrast woods 3 take second place (297kg), contrast woods 2 output the 3rd (279kg), contrast woods 1 minimum (275kg), changes not remarkable by the nutriment of determination test woods and each contrast woods red date.
Therefore effectively saving water resource of the present invention, solves the correlation technique difficult problems such as surface pond, rainwash, emitter clogging, and is conducive to that red date is ripe to improve the yield and quality, and especially, concerning arid, utmost point arid biogeographic zone, water saving efficiency is quite objective.
Above technical characterictic has formed embodiments of the invention, and it has stronger adaptability and implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
Claims (5)
1. an arid and utmost point arid biogeographic zone sandy soil ground leading thread 7.5cm to 10.5cm red jujube tree well formula irrigation method, it is characterized in that carrying out in the steps below: the first step, the forest ground soil of determining the red jujube tree that plantation leading thread is 7.5cm to 10.5cm is the sandy soil ground of arid and utmost point arid biogeographic zone, second step, select vertical shaft pipe with holes, vertical shaft pipe with holes comprises body, the internal diameter of body is 10cm to 12cm, high is 20cm to 25cm, the lower end of body is fixed with sealing plate, on body, be intervally distributed with apopore, water inlet is arranged at the top of body, the apopore of body the top is 3cm to 6cm apart from body distance from top, the aperture of apopore is 0.1cm to 1cm, on every strain red jujube tree ground surface of red jujube tree strain spacing direction, make a call to two holes that be symmetric and vertical shaft pipe with holes matches, the position in hole is 45cm to 55cm apart from the earth's surface air line distance of every strain red jujube tree, by in vertical shaft pipe embedding hole with holes, ensure vertical shaft pipe with holes 1cm to 2cm above ground level, the 3rd step is installed conventional drip irrigation appliance in this forest ground, and the corresponding every strain red jujube tree of drip irrigation appliance stays two water droppers, and the opening of the vertical shaft pipe with holes upper end that the delivery port of each water dropper is installed with second step is respectively corresponding, the 4th step, carrying out normal conventional dropper irrigates, the flow of the each water dropper of drip irrigation appliance is 16L/h to 22L/h, the water of drip irrigation emitter enters vertical shaft pipe with holes inside, after water in vertical shaft pipe with holes exosmoses, directly the underground root system of red jujube tree is irrigated, make soil wetting pattern cover the Root Distribution region of every strain red jujube tree.
2. arid according to claim 1 and utmost point arid biogeographic zone sandy soil ground leading thread 7.5cm to 10.5cm red jujube tree well formula irrigation method, it is characterized in that irrigate each water dropper irrigation quantity is 90L to 110L at every turn, every tree has two water droppers, and the irrigation volume of at every turn irrigating every strain red jujube tree is 180L to 220L.
3. arid according to claim 1 and 2 and utmost point arid biogeographic zone sandy soil ground leading thread 7.5cm to 10.5cm red jujube tree well formula irrigation method, it is characterized in that being less than in annual precipitation the area of 100mm, irrigated once April every 8 days to 9 days, irrigated once May every 5 days to 6 days, irrigated once June to August every 4 days to 5 days, irrigated once September every 6 days to 7 days, and irrigated once October every 10 days to 12 days.
4. arid according to claim 1 and 2 and utmost point arid biogeographic zone sandy soil ground leading thread 7.5cm to 10.5cm red jujube tree well formula irrigation method, after it is characterized in that stopping every year irrigating, vertical shaft pipe with holes is taken out, clear up the root system on vertical shaft pipe with holes, root system in hole on vertical shaft pipe with holes is removed, ensure that on vertical shaft pipe, hole can normally seep water, use to continue next time.
5. arid according to claim 3 and utmost point arid biogeographic zone sandy soil ground leading thread 7.5cm to 10.5cm red jujube tree well formula irrigation method, after it is characterized in that stopping every year irrigating, vertical shaft pipe with holes is taken out, clear up the root system on vertical shaft pipe with holes, root system in hole on vertical shaft pipe with holes is removed, ensure that on vertical shaft pipe, hole can normally seep water, use to continue next time.
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| CN106034938A (en) * | 2016-06-23 | 2016-10-26 | 石河子大学 | Irrigation method for changing flooding irrigation into drop irrigation of mature red dates in desert zones in south Xinjiang |
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Application publication date: 20140917 |