CN103329768A - Dry farming direct seeding planting method of rice - Google Patents
Dry farming direct seeding planting method of rice Download PDFInfo
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- CN103329768A CN103329768A CN2013102141194A CN201310214119A CN103329768A CN 103329768 A CN103329768 A CN 103329768A CN 2013102141194 A CN2013102141194 A CN 2013102141194A CN 201310214119 A CN201310214119 A CN 201310214119A CN 103329768 A CN103329768 A CN 103329768A
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Abstract
The invention discloses a dry farming direct seeding planting method of rice, which comprises the steps of preparing sprinkling irrigation equipment: the lifting micro-sprinkling irrigation equipment is buried under to-be-planted ground for 30-40cm; processing a field: straws of last stubbles of crops on the to be planted ground are cut into sections, the lengths of the straw sections are 2-20cm, the straw sections are broadcast in soil, a base fertilizer is applied on the soil, and the soil is subjected to ploughing and rotary tillage; preparing rice seeds and seeding: the selected rice seeds are sown on the processed soil uniformly, and then the soil is compacted; and performing sprinkling irrigation: the lifting micro-sprinkling irrigation equipment buried under the ground is used for irrigating the soil sown with the rice seeds, and the water content of the surface of the soil is 40-60%. Therefore, the precision irrigation to the crops is realized; excess water accumulation in the rice field is avoided; and the utilization ratio of water resources is increased. In addition, the straws are turned into organic fertilizers with the passage of time; straw turnover is realized indeed; the method contributes to improving the yield and quality of grains; and environmental pollution due to straw burning is avoided.
Description
Technical field
The invention belongs to planting method of crops, specially refer to a kind of rice dry-farming direct-seeding planting method.
Background technology
Paddy rice is the staple crops of China's plantation, up to the present, all be the tillage method that adopts the big flood full irrigation generally, water consumption is big, and China is the deficient relatively country of a water resource, causes local paddy rice minimizing because variation China of weather has the part paddy rice to plant regional lack of water simultaneously.
Utilizing plastic mulching to carry out the paddy rice dry land, to plant to reach the technical method of water-saving and yield-increasing be existing newer technical method, and these technical methods have also obtained applying.But all there is certain defective in these technical methods: required irrigate band and mulch film are more, cost is higher, use the plastic mulching method to carry out the plantation of paddy rice dry land simultaneously throughout the year, will produce more mulch film fragment in the soil of field, the time one is long bigger to soil pollution.
Broad irrigation formula rice cultivating method, rice sprouts transplanting method just is because sun evaporation and seepage cause water resource to waste in a large number.Rice sprouts is transplanted and need just can be survived in deep water, and general 4-7 days, about depth of water 5-7cm.Remaining stalk is not generally all gone back the field preferably in this cultivation method after last one batch of crops harvesting, because when setting up water layer, part stalk after cutting off will float on the surface, under the effect of wind, stalk will overwhelm or cover on the transplant seedlings, thereby causes rice shoot death.In addition, if rice shoot is inserted on the stalk during rice transplanting, rice shoot is floated on the surface and can not survives.Rice shoot president after surviving make new advances root soil 3-5 centimetre dark, if there is not water layer, under the irradiation of the sun, will become stiff seedling so, do not tiller and easily dead.The grower tends to stalk is burned, and thus, environmental pollution is comparatively serious.In addition, because straw-returning do not resolve, add that the soil do not execute or seldom execute farmyard manure, fertilizer, make the soil plant barrenr and barrenr, chemical fertilizer is got over Shi Yueduo, and it is also serious to run off. and. the growth because paddy rice ducks in drink for a long time, rice pest takes place serious, the usage amount of agricultural chemicals and number of times are also more and more. simultaneously, since the backwardness of paddy rice irrigation technique, labour's shortage, and rice yield amplification is very little for many years.
Summary of the invention
In order to address the above problem, the invention provides a kind of rice dry-farming direct-seeding planting method.
According to an aspect of the present invention, provide a kind of rice dry-farming direct-seeding planting method, it is characterized in that, comprise the following steps:
Prepare sprinkling irrigation equipment: elevation (over-and-under) type microspray irrigation equipment is embedded in waits to plant 30-40cm below ground;
Whole field: the stalk that will treat last one batch of crops on kind of ground is cut into chunks, and these crops can be wheat, and the length of stalk section is 2-20cm, is sprinkling upon then in the soil, again to the soil basal dressing, then this soil is carried out ploughing and rotary tillage;
Prepare seed rice and sowing: the seed rice of choosing is evenly sowed on the soil of putting in order, in the time of with planting with sowing machine that soil pressure is real;
Sprinkling irrigation: use the elevation (over-and-under) type microspray irrigation equipment that is embedded in below ground that the soil of broadcasting seed rice is irrigated, making surface, soil water content is 40%-60%.This equipment is about 30 years in underground service life.
Its beneficial effect is: at first, elevation (over-and-under) type microspray irrigation equipment is embedded in the soil lower face, when needing sprinkling irrigation this equipment is risen to the ground and crops are carried out microspray irrigation from the soil lower face, after finishing, microspray irrigation in time drops to the soil lower face, can not damage this elevation (over-and-under) type microspray irrigation equipment when adopting plant equipment that the soil is carried out operation, back and forth use, simple and convenient.Simultaneously, elevation (over-and-under) type microspray irrigation equipment has the function to the crops precision irrigation, and during irrigation such as natural precipitation, intensity of dripping water is little, and area is big and the uniformity is high, and rice shoot is not formed destructiveness.Elevation (over-and-under) type microspray irrigation equipment can improve water utilization rate, avoids occurring unnecessary ponding in the rice field, and the air permeability in rice field is good, in addition, compares plastic mulching and carries out the environmental protection more of paddy rice dry land kind method for planting.Secondly, stalk is cut into chunks and be sprinkling upon in the soil, then this soil is carried out ploughing and rotary tillage, utilize elevation (over-and-under) type microspray irrigation equipment that the soil is irrigated then, thus, stalk covers the rice transplanting rice shoot and the unfavorable condition that influences its normal growth takes place in the time of can avoiding straw-returning, simultaneously can also avoid stalk is burned caused environmental pollution, and stalk also in time passing become fertilizer, the real straw-returning of realizing, help to improve grain yield and quality, reduce the usage amount of chemical fertilizer year by year, the soil benign cycle is used.
In some embodiments, the seeding quantity of seed rice is every mu of 4-7kg/.
In some embodiments, also comprise the weeding step: behind sprinkling irrigation step 2-3 days after finishing to the soil herbicide spraying.Its beneficial effect is: the soil is carried out weeding, prevent weeds absorbent earth moisture and nutrient on the ground, be conducive to the growth of rice seedling.
In some embodiments, the wait seed rice was emerged after the weeding step was finished, and rice seedling forms rice shoot also tillers, and stopped sprinkling irrigation and carried out dry field when a stem of seed rice has 4-6 to tiller, and control is tillered.Its beneficial effect is: carry out dry field and stop to tiller when a stem of seed rice has 4-6 to tiller, the ineffective tillering that effectively prevents rice seedling is too much, density is too high and cause spike of rice little, flat shell is many, the not full situation of particle produces, can reduce simultaneously the generation of damage by disease and insect, thereby reduce the use of agricultural chemicals.
In some embodiments, rice shoot is executed the ammonium hydrogencarbonate chemical fertilizer during for a leaf wholeheartedly, and the consumption of ammonium hydrogencarbonate chemical fertilizer is every mu of 8-12kg/.Its beneficial effect is: rice shoot is executed the ammonium hydrogencarbonate chemical fertilizer to it during for a leaf wholeheartedly, and the consumption of the ammonium hydrogencarbonate chemical fertilizer of executing is every mu of 8-12kg/, and thus, being conducive to seed rice has the generation of 4-6 effective tiller from emerging to a stem.
In some embodiments, base manure comprises farmyard manure and chemical fertilizer, the consumption of farmyard manure is every mu of 450-550kg/, chemical fertilizer comprises nitrogenous fertilizer, phosphate fertilizer and potash fertilizer, the consumption of described chemical fertilizer is every mu of 15-20kg/, and the consumption of chemical fertilizer accounts for the 50-70% that needs the chemical fertilizer total amount used in the middle of the paddy rice plantation overall process.Its beneficial effect is: basal dressing is conducive to improve the soil, is beneficial to the growth of paddy rice.
In some embodiments, the seed rice in the preparation process of seed rice was soaked in the water 40-50 hour, waited behind the airing to broadcast.Its beneficial effect is: before the sowing seed rice soaked in water and emerges the morning that was conducive to seed rice in 40-50 hour, emerge neatly and emergence rate high, catch season.
In some embodiments, the mode of sowing is bunch planting, every bunch planting seed rice 3-5 grain, and sowing depth is 1-2cm, spacing distance is 30cm * 20cm or 25cm * 25cm, anyhow alignment.Its beneficial effect is: this mode is sowed and can be conducive to the growth of rice seedling, and be convenient to the mechanization weeding to the rice field so that the rice field is whole to ventilate, breathe freely, and is convenient to farmland operation.
In some embodiments, the degree of depth of ploughing is 20-25cm in the step of whole field, and the degree of rotary tillage is to make the soil block size be 1-5cm, and the straw-returning degree of depth is 15cm.Its beneficial effect is: stalk can be realized 100% also field, and the growth of rice shoot is not influenced.
In some embodiments, prepare also to bury the underground drainage system of pouring water of infiltrating irrigation formula underground in the sprinkling irrigation equipment step, its depth of burying is for waiting to plant 20-40cm below ground.Its beneficial effect is: the underground drainage system of pouring water of infiltrating irrigation formula is beneficial in the rice field of draining the unnecessary ponding that causes because of reason such as rain, keep the soil surface water content constant substantially, make that paddy rice is not having to grow under the environment of unnecessary ponding always, but also make things convenient for mechanical work.Thus, can adopt the sprinkling irrigation of elevation (over-and-under) type microspray irrigation equipment during sprinkling irrigation or adopt the underground drainage system of pouring water of infiltrating irrigation formula to spray, also can simultaneously soil be irrigated by two kinds of equipment, irritate soil.
Description of drawings
Fig. 1 is the structural representation of the elevation (over-and-under) type microspray irrigation equipment that uses of the present invention;
Fig. 2 shrinks schematic diagram under the elevation (over-and-under) type microspray irrigation device ground used of the present invention;
Fig. 3 is that the present invention uses elevation (over-and-under) type microspray irrigation equipment to be raised to schematic diagram when spraying on the ground;
Fig. 4 is the underground drainage system structural representation of pouring water of infiltrating irrigation formula that the present invention uses.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and example.
Rice dry-farming direct-seeding planting method is as follows:
The present invention tests in the Yanlin Zhen Xizhou of Danyang City, Jiangsu village, and the rainfall is plentiful in the test area.
(1) prepares sprinkling irrigation equipment: elevation (over-and-under) type microspray irrigation equipment is embedded in waits to plant 30cm or 40cm place below ground, be preferably 30cm.Elevation (over-and-under) type microspray irrigation equipment is buried sprinkling irrigation hydraulic multi-stage expansion link regularly; its concrete structure is with reference to Fig. 1, Fig. 2 and Fig. 3; inlet opening 1, base 2, protection tube 3, multi-stage expansion pipe 4, sealing ring 5, ball valve 6, shower nozzle 7, protection tube driving device 8, ground 9, inlet valve 10, vavuum pump valve 11, vavuum pump 12, hard tube 13, multistage lifting pipe and shower nozzle combination 14, ground 15.
(2) whole field: the stalk that at first will treat last one batch of crops on kind of ground is cut into chunks, and the length of stalk section is 2cm or 5cm or 20cm, and wherein stalk section length is preferably 5cm.Secondly, stalk section is sprinkling upon in the soil, again to the soil basal dressing, this base manure comprises farmyard manure and chemical fertilizer, and wherein, the consumption of farmyard manure is every mu of 450-550kg/, chemical fertilizer comprises nitrogenous fertilizer, phosphate fertilizer and potash fertilizer, and the consumption of chemical fertilizer accounts for the 50-70% that needs the chemical fertilizer total amount used in the middle of the paddy rice plantation overall process.At last, this soil is carried out ploughing and rotary tillage, wherein, the ploughing degree of depth is 20cm or 25cm, and the degree of rotary tillage is to make the soil block size for 1cm or 1.5cm or 5cm, is preferably 1cm.Straw-returning is 15 or 20cm apart from the distance of ground surface, is preferably 15cm, thereby improves the soil physical arrangement, improves soil ventilation and water-holding capacity condition, is conducive to the realization of straw-returning simultaneously, increases soil organic fertilizer.
(3) prepare seed rice and sowing: the seed rice of choosing is evenly sowed on the soil of putting in order, in the time of sowing that soil pressure is real.Wherein, seed rice is selected No. 24, round-grained rice " military fortune " seed for use, before the sowing it is basked seeds, then it was soaked in the water 40 hours or 50 hours or 48 hours, wherein soak time be 48 hours better, after the seed immersion is finished its airing is waited to broadcast.Adopt precision planter to carry out bunch planting, also can manually carry out bunch planting, every bunch planting seed rice 3-5 grain, sowing depth is 1-2cm, and spacing distance is 30cm * 20cm or 25cm * 25cm, anyhow alignment, thus, can be conducive to the growth of rice seedling, and be convenient to the later stage to the mechanization weeding in rice field so that the rice field is whole to ventilate, breathe freely.The seeding quantity of seed rice is every mu of 4-7kg/.
Before the sowing seed rice soaked in water and emerges the morning that was conducive to seed rice in 40-50 hour, emerge neatly and emergence rate high, emergence rate reaches 98%.
(4) sprinkling irrigation: finish the elevation (over-and-under) type microspray irrigation equipment that was embedded in below ground with interior use in 24 hours at seed rice the soil of broadcasting seed rice is irrigated, making surface, soil water content is 40%-60%.With reference to Fig. 2 and Fig. 3; press water flows to base 2 from water inlet 1; pressure water action is on multi-stage expansion pipe 4 and back down ball valve 6 and be raised to ground; simultaneously protection tube driving device 8 drives protection tubes 3 and also is raised on the ground about 10cm; multistage reduction pipe 4 is raised on the ground and stops behind the certain altitude; on the thinnest one mini sprinkler 7 is housed, mini sprinkler 7 is started working under the pressure effect of water.After sprinkling irrigation finishes; the multistage lifting bar will drop to below ground; from Fig. 1, close inlet valve 10, open vavuum pump valve 11; vavuum pump 12 is started working; ball valve 6 in the multistage lifting bar is closed simultaneously, makes the multistage lifting bar produce vacuum, makes the landing of multistage lifting bar page or leaf profit; under protection tube driving device 8 drove, protection tube 3 also dropped to below ground simultaneously.
Gathered in new round seed rice from last one batch of crops and broadcast back irrigation end, the used time is 48 hours, is conducive to hold season.The irrigation in paddy rice plantation later stage uses elevation (over-and-under) type microspray irrigation equipment to carry out, and remaining surface, soil water content is 40% or 50% or 60%, stops to spray in 10-15 days before paddy rice harvesting.
Elevation (over-and-under) type microspray irrigation equipment is embedded in the soil lower face, when needing sprinkling irrigation this equipment risen on the ground and to crops from the soil lower face and spray, after finishing, sprinkling irrigation in time drops to the soil lower face, when carrying out operation to the field, agricultural machinery can not damage this elevation (over-and-under) type microspray irrigation equipment, the long service life of equipment, can use repeatedly, simple and convenient.Simultaneously, elevation (over-and-under) type microspray irrigation equipment has the function to the crops precision irrigation, improves water utilization rate, avoids occurring unnecessary ponding in the rice field, and the air permeability in rice field is good, can suppress the generation of damage by disease and insect greatly.In addition, compare plastic mulching and carry out the environmental protection more of paddy rice dry land kind method for planting.Secondly, stalk is cut into chunks and be sprinkling upon the field, then this soil is carried out ploughing and rotary tillage, utilize elevation (over-and-under) type microspray irrigation equipment that the field is irrigated then, thus, stalk covers the rice transplanting rice shoot and the unfavorable condition that influences its normal growth takes place in the time of can avoiding straw-returning, simultaneously can also avoid stalk is burned caused environmental pollution, and stalk also in time passing become fertilizer, really realize straw-returning, help to improve grain yield and quality.In order equably, accurately to spray fertilizer or agricultural chemicals, fertilizer or the agricultural chemicals of solubility can be sprayed by elevation (over-and-under) type microspray irrigation equipment.
In order to prevent weeds absorbent earth moisture and nutrient and influence emerging of seed rice on the ground, after 2-3 days after the sprinkling irrigation step is finished to the soil herbicide spraying.
For the ineffective tillering that prevents rice seedling too much, density is too high and cause spike of rice little, flat shell is many, the not full situation of particle produces, so waiting for seed rice after the weeding step is finished emerges, rice seedling forms rice shoot and tillers, and stops sprinkling irrigation and carry out dry field when a stem of seed rice has 4 to tiller, and control is tillered.
To a stem 4 effective tiller are arranged from emerging in order to be beneficial to seed rice, it is being executed the ammonium hydrogencarbonate chemical fertilizer when rice shoot during for a leaf wholeheartedly, the consumption of ammonium hydrogencarbonate chemical fertilizer is every mu of every mu of 8kg/ or every mu of 12kg/ or 10kg/, wherein, effect was better when the consumption of ammonium hydrogencarbonate chemical fertilizer was every mu of 10kg/, and it is 20-25 days that seed rice has 4 used times of effective tiller from emerging to a stem.
Directly supply water to the crops root system in order further to realize, the unnecessary ponding of being convenient to drain in the rice field and causing because of reason such as rain, keep the soil surface water content constant substantially, make that paddy rice is not having to grow under the environment of unnecessary ponding always, can also bury the underground drainage system of pouring water of infiltrating irrigation formula underground in preparing the sprinkling irrigation equipment step, its depth of burying is for waiting to plant 30cm or 40cm below ground.
Specifically with reference to Fig. 4, the underground drainage system of pouring water of infiltrating irrigation formula comprises water pump 100, conduit pipe 200, first valve 300, inlet channel 400, outlet conduit 500, pour water drainage pipeline 600 and second valve 700, water pump 100 is positioned at the place, water source, and conduit pipe 200 connects water pump 100 and inlet channel 400.By water pump 100 water is injected conduit pipe 200, current flow in the inlet channel 400 via conduit pipe 200.The entrance of inlet channel 400 is provided with first valve 300, the drainage pipeline 600 of pouring water connects inlet channel 400 and outlet conduit 500, the drainage pipeline 600 of pouring water is located at the soil lower face, the sidewall of drainage pipeline 600 of pouring water is provided with the through hole 601 that supplies water and pass through, these through hole 601 places also are provided with screen pack, and the outlet of outlet conduit 500 is provided with second valve 700.When need pour water, first valve 300 opened and with two valve closings, start water pump 100 then, water pump 100 is started working water is incorporated in the drainage tube, current enter into inlet channel 400 through first valve 300, flow in the drainage pipeline 600 of pouring water from inlet channel 400 again, because second valve 700 has been closed, the drainage pipeline 600 interior water levels of pouring water will rise, when being full of water in the drainage pipeline 600 of pouring water, current will flow in the middle of the soil through through hole 601 and screen pack, realize irrigating.Moisture content in the middle of soil is too high, when needing draining, close first valve 300 and second valve 700 is opened, the moisture content in the soil flow in the drainage pipeline 600 of pouring water by screen pack and through hole 601, discharge via outlet conduit 500 again, realize the draining in soil.
The underground drainage system of pouring water of infiltrating irrigation formula can be realized directly to the even function that supplies water of crops root system, saved the water resource of irrigating greatly, and the drainage pipeline 600 of will pouring water is located at the soil lower face, can do not destroyed by farm machinery, prolong the service life of the underground drainage system of pouring water of infiltrating irrigation formula greatly.In addition, the moisture content in soil is too high, and the underground drainage system of pouring water of the infiltrating irrigation formula redundant moisture of can also draining makes paddy rice not have growth better under the environment of unnecessary ponding always.
" buried sprinkling irrigation hydraulic multi-stage expansion link regularly " but the concrete structure application reference number be 201220516579.3 utility model patent.
Paddy rice is 40%-60% in the soil surface water content, the water content at the following 4-25cm of soil layer place is just can well grow under 70% the environment, the root because seed rice is grown earlier when germinateing, treat the root bud that comes into leaves again when going deep into soil 3 to 6cm, generally speaking, during dry farming rice shoot height of seedling 4.5-5cm, root system just gos deep into about soil 13-14cm, so can not thirst, on the contrary well developed root system.The method situation of shoot transplanting equipment is then different: when the paddy rice seedling is transplanted, root system is destroyed, transplant the long new root in back and must be immersed in the water, the depth of water so just can not dried up by the sun about 7cm, through 5-7 days, rice shoot grows new white root, just can survive, but at this moment the root system of rice shoot has only 4-5cm in the degree of depth of soil, also must be immersed in the water growth paddy rice just has and tillers, and general water layer has about 3cm.Seedling was generally transplanted in growth in the seedbed in about 20-25 days, survived in 5-7 days then, tillered again, and at this moment tillered nursery plant is postponed, is difficult to cultivate strong sprout.The dry-farming direct-seeding planting method germination and emergence only needed just begin to tiller in 12-15 days, than the transplanting method end of tillering in 20 days in advance, and can have 4-6 to tiller.So rice dry-farming direct-seeding planting method of the present invention can be cultivated strong sprout, lays the first stone to volume increase.
The table of comparisons of table 1. rice dry-farming direct-seeding planting method of the present invention and traditional rice transplanting broad irrigation formula cultivation method (with every mu of calculating, every mu by 667 squares of calculating)
Above-described only is some embodiments of the present invention, should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from creation design of the present invention, can also make other distortion and improvement, and these all belong to protection scope of the present invention.
Claims (10)
1. rice dry-farming direct-seeding planting method is characterized in that, comprises the following steps:
Prepare sprinkling irrigation equipment: elevation (over-and-under) type microspray irrigation equipment is embedded in waits to plant 30-40cm below ground;
Whole field: the stalk that will treat last one batch of crops on kind of ground is cut into chunks, and the length of stalk section is 2-20cm, is sprinkling upon then in the soil, again to the soil basal dressing, then this soil is carried out ploughing and rotary tillage;
Prepare seed rice and sowing: the seed rice of choosing is evenly sowed on the soil of putting in order, then that soil pressure is real;
Sprinkling irrigation: use the elevation (over-and-under) type microspray irrigation equipment that is embedded in below ground that the soil of broadcasting seed rice is irrigated, making surface, soil water content is 40%-60%.
2. rice dry-farming direct-seeding planting method according to claim 1 is characterized in that, the seeding quantity of described seed rice is every mu of 4-7kg/.
3. rice dry-farming direct-seeding planting method according to claim 1 is characterized in that, also comprises the weeding step: behind sprinkling irrigation step 2-3 days after finishing to the soil herbicide spraying.
4. rice dry-farming direct-seeding planting method according to claim 3, it is characterized in that the wait seed rice was emerged after described weeding step was finished, rice seedling forms rice shoot and also tillers, stop sprinkling irrigation and carry out dry field when a stem of seed rice has 4-6 to tiller, control is tillered.
5. rice dry-farming direct-seeding planting method according to claim 4 is characterized in that, described rice shoot is executed the ammonium hydrogencarbonate chemical fertilizer during for a leaf wholeheartedly, and the consumption of described ammonium hydrogencarbonate chemical fertilizer is every mu of 8-12kg/.
6. rice dry-farming direct-seeding planting method according to claim 1, it is characterized in that, described base manure comprises farmyard manure and chemical fertilizer, the consumption of described farmyard manure is every mu of 450-550kg/, described chemical fertilizer comprises nitrogenous fertilizer, phosphate fertilizer and potash fertilizer, the consumption of described chemical fertilizer is every mu of 15-20kg/, and the consumption of described chemical fertilizer accounts for the 50-70% that needs the chemical fertilizer total amount used in the middle of the paddy rice plantation overall process.
7. rice dry-farming direct-seeding planting method according to claim 1 is characterized in that, the seed rice in the preparation process of described seed rice was soaked in the water 40-50 hour, waited behind the airing to broadcast.
8. rice dry-farming direct-seeding planting method according to claim 1 is characterized in that, the mode of described sowing is bunch planting, every bunch planting seed rice 3-5 grain, and sowing depth is 1-2cm, spacing distance is 30cm * 20cm or 25cm * 25cm, anyhow alignment.
9. rice dry-farming direct-seeding planting method according to claim 1 is characterized in that, the degree of depth of ploughing is 20-25cm in the step of described whole field, and the degree of rotary tillage is to make the soil block size be 1-5cm, and the straw-returning degree of depth is 15-20cm.
10. according to each described rice dry-farming direct-seeding planting method among the claim 1-8, it is characterized in that, prepare also to bury the underground drainage system of pouring water of infiltrating irrigation formula underground in the sprinkling irrigation equipment step that its depth of burying is for waiting to plant 20-40cm below ground.
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