CN1233214C - Rice field irrigation water saving method by impact-compacting soil of rice field - Google Patents
Rice field irrigation water saving method by impact-compacting soil of rice field Download PDFInfo
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- CN1233214C CN1233214C CN 00123766 CN00123766A CN1233214C CN 1233214 C CN1233214 C CN 1233214C CN 00123766 CN00123766 CN 00123766 CN 00123766 A CN00123766 A CN 00123766A CN 1233214 C CN1233214 C CN 1233214C
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Abstract
The present invention relates to a method for saving rice field irrigation water by impacting and compacting rice field soil bodies, which is characterized in that after a rice field is reaped, before the steeping field and the water flooding are carried out, soil bodies under a rice plough horizon can be compacted by utilizing an impacting and compacting mode, the compactness of the soil bodies can be enhanced, and the leakage of water in the rice field can be reduced. The present invention can compact soil layers under the plough horizon of the rice field, and the soil layer of the plough horizon can exist in loose condition to plant rice. The present invention can largely save the labor of watering rice fields and compacting soil, and is suitable for the soil impact and compaction for rice fields and aquatic crops to save water.
Description
Technical field
The present invention relates to the water-saving method in a kind of rice field, particularly a kind of shock compaction paddy soils body segment is the method for rice field water approximately.
Background technology
The life of paddy rice is to be unable to do without water, the rice biological body can reach more than 90% in seedling stage water content, the moisture that paddy rice needs in life is by the rice leaf transpiration, evaporation and rice field seepage three form between section, wherein the rice field seepage is inevitable water consumption, and the size of leakage is decided by soil characteristics, moisture condition and tillage control measure.The leakage of paddy field water either it is generally acknowledged that should be controlled at every day 3-5 millimeter is advisable, and this refreshing water is by being considered to the field.Can not seepage then the noxious material accumulation is too much; Seepage is too much, and water consumption is too many again, nutrient loss.
Because China's various places condition differs greatly, thus plant one season paddy rice and the rice field water requirement very big difference is arranged, between the 300-2280 millimeter, being equivalent to every mu of water requirement is the 200-1520 cubic meter.And China is the country of a lack of water.Especially even more serious in the north, save the rice field water for the benefit of giving full play to existing water conservancy projects, strengthen drought-resistant ability, realize that large tracts of land stable yields, volume increase have very big meaning.Rice field water-saving method up to now has: (1) improves whole ground, soaked field quality, and (2) improve irrigation technique, and (3) utilize natural precipitation, (4) measures such as water that act out one's plan.
Wherein measure (1) improves whole ground, soaked field quality and no doubt helps improving soil structure, stops up the subsoil crack, has ploughed the limit, field simultaneously, has stuck with paste ridge, also can prevent lateral leakage.Yet paddy soils body porosity does not still obviously change, thus to the problem ubiquity of underground too much seepage paddy field water either.
Summary of the invention
The purpose of this invention is to provide a kind of shock compaction paddy soils body segment method of rice field water approximately, it can make the surface, soil loose, and deep compaction makes the soil of paddy field can prevent the too much seepage of moisture content, again can be on loose soil rice cultivation.
The objective of the invention is to realize by following technical scheme.After the harvesting of rice field, before the waterflooding of soaked field, utilize the shock compaction mode to come the following soil body of compacting wet rice cultivation layer, improve soil body packing to reduce the leakage of water in the rice field.Used shock compaction facility comprise polygon shock compaction wheel, and it has the edge of a plurality of profile unanimities, has maximum vector point and minimum vector point on every edge.The amount of edge of described polygon shock compaction wheel is 3 to 6.The edge contour of described polygon shock compaction wheel comprises two circular arcs that join, and wherein little circular arc and orthodrome are tangent at the contact place.The edge contour of described polygon shock compaction wheel comprises circular arc and the straight line that joins, and wherein circular arc and straight line are tangent at the contact place.The edge contour of described polygon shock compaction wheel comprises circular arc and the non-circular curve that joins, and wherein circular arc and non-circular curve are tangent at the contact place.The edge wheel of described polygon shock compaction wheel comprises non-circular curve and the straight line that joins, and wherein the two is tangent at the contact place.The edge wheel of described polygon shock compaction wheel comprises two non-circular curves that join, and wherein the two is tangent at the contact place, make before the shock compaction airing of soil, rice field to water content in the 6-14% scope, the shock compaction pass is controlled at 2-6 all in the scope.
The inventive method is before soaked field waterflooding behind the paddy rice harvesting, utilize the following soil body of Impact Compaction Technique compacting paddy field plow layer, reduce porosity, crack, the raising packing of soil, thereby minimizing leakage, not only realize using water wisely but also avoid nutrient loss, also can significantly reduce agricultural chemicals in the water, chemical fertilizer phreatic pollution.Because the shock compaction topsoil is subjected to disturbance to a certain degree, the plow layer soil of the following 15-18cm layer of native land table still can be in loose condition (of surface), have sufficient nutrient constantly to supply with root system in this soil layer at rice root distribution place to absorb, its potential fertility is given full play to so that make.And the following soil layer of plow layer possesses certain packing, can keep the suitable seepage of water can control the undue seepage of water again.
Realize facility of the present invention be polygon shock compaction wheel it have 3-6 limit, every limit outline unanimity, maximum vector on it (A) can make wheel in rolling the face of land soil body be produced impact to the difference of minimum vector (B) radius, thereby make the soil body in bottom range, obtain compacting, then loose on the top layer because of shock vibration.The present invention once did overtesting at the 150 mu of paddy fields in certain farm, but the result shows using water wisely 60-80%.
In sum, adopt the inventive method, can be with the soil body compacting below the paddy field plow layer, and the soil layer that keeps this plow layer is in loose condition (of surface) so that plantation, the work of having saved rice field water and compacting soil greatly.The inventive method is suitable for the shock compaction in rice field and all aquatic crops soils, with using water wisely.
Do with embodiment below and specify.
Description of drawings
Fig. 1 is the paddy soils layer state figure of employing the inventive method compacting,
Fig. 2 is a compacting working state figure of the present invention,
Fig. 3-8 is the various edge contour enlarged drawings of shock compaction wheel 3 among Fig. 2.
Code name among the figure:
1 plow layer, 2 compacted lift 2A tillage pan 2B speckle layers
4 edge contours, 5 circular arcs are taken turns in 3 shock compactions of 2C parent rock horizon
6 circular arcs, 8 straight lines, 9 contacts, 10 non-circular curves
11 fillets, 12 non-circular curves
Embodiment
As Fig. 1, before the harvesting back soaked field waterflooding of rice field, utilize the shock compaction mode to come the soil body of compacting wet rice cultivation layer below 1, make it become compacted lift 2, to improve the leakage that soil body density reduces water in the rice field.Be illustrated in figure 2 as the rolling compacting situation of shock compaction wheel 3, this takes turns the edge 4 with 5 profile unanimities, have maximum vector point A and minimum vector point B on every edge 4, during rotation because maximum vector point A and minimum vector point B radius on the edge contour 4 poor taken turns in rolling to face of land soil body generation impact this.Before the shock compaction operation, with soil, rice field airing to water content is 8-9%, shock compaction 4 times, because during shock compaction, topsoil is subjected to disturbance to a certain degree, so the top layer still can be in loose condition (of surface) in the soil property of the plow layer 1 of 15-18 cm thick, and the tillage pan 2A of 10 cm thicks under it, speckle layer 2B of 40-50 cm thick and following again parent rock horizon 2C soil possess certain compaction rate under it again, the leakage of actual measurement water is 0.4cm/ days, can keep the suitable seepage of water can control the undue seepage of water again.Fig. 3 to 8 is the shape scheme of each edge contour 4 of the used shock compaction wheel 3 of the inventive method.Fig. 3 is the edge contour 4 of described polygon shock compaction wheel, comprises two circular arcs 5,6 that join, and wherein roundlet arc 5 is positioned at the top and orthodrome 6 is tangent at contact 9 places.The other end of roundlet arc 5 links to each other with fillet 11 transition with another orthodrome 6A.Circular arc 5 and straight line 8 that Fig. 4 joins for edge contour 4 comprises, wherein circular arc 5 is tangent at contact 9 places with straight line 8.Circular arc 5 and non-circular curve 10 that Fig. 5 joins for edge contour 4 comprises, wherein circular arc 5 is tangent at contact 9 places with non-circular curve 10.Fig. 6 also comprises the circular arc that joins 6 and non-circular curve 12 for edge contour 4, with Fig. 5 difference be that non-circular curve 12 is positioned at the top, the two is tangent at contact 9 places.Fig. 7 is to comprise the non-circular curve 12 and straight line 8 that joins for edge contour 4, and wherein the two is tangent at contact 9 places.Fig. 8 is two non-circular curves 10 and 12 for edge contour curve 4, and wherein the two is tangent at contact 9 places.Described non-circular curve 10 and 12 can be parabola, hyperbola, elliptic curve etc.
Claims (10)
1, a kind of shock compaction paddy soils body segment is the method for rice field water approximately, it is characterized in that, after the harvesting of rice field, before the waterflooding of soaked field, take turns rolling to the following soil body shock compaction of wet rice cultivation layer, improve soil body packing to reduce the infiltration capacity of water in the rice field by the polygon shock compaction of impact densifying-machine.
2, a kind of shock compaction paddy soils body segment according to claim 1 is the method for rice field water approximately, it is characterized in that, each limit of described polygon shock compaction wheel is the edge of profile unanimity, has maximum vector point and minimum vector point on every edge.
3, a kind of shock compaction paddy soils body segment according to claim 2 is the method for rice field water approximately, it is characterized in that, the amount of edge of described polygon shock compaction wheel is 3-6.
4, a kind of shock compaction paddy soils body segment according to claim 2 is the method for rice field water approximately, it is characterized in that the edge contour of described polygon shock compaction wheel comprises two circular arcs that join, and wherein little circular arc and orthodrome are tangent at the contact place.
5, a kind of shock compaction paddy soils body segment according to claim 2 is the method for rice field water approximately, it is characterized in that the edge contour of described polygon shock compaction wheel comprises circular arc and the straight line that joins, and wherein circular arc and straight line are tangent at the contact place.
6, a kind of shock compaction paddy soils body segment according to claim 2 is the method for rice field water approximately, it is characterized in that the edge contour of described polygon shock compaction wheel comprises circular arc and the non-circular curve that joins, wherein circular arc and non-circular curve are tangent at the contact place.
7, a kind of shock compaction paddy soils body segment according to claim 2 is the method for rice field water approximately, it is characterized in that, the edge contour of described polygon shock compaction wheel comprises non-circular curve and the straight line that joins, and wherein non-circular curve and straight line are tangent in the joint.
8, a kind of shock compaction paddy soils body segment according to claim 2 is the method for rice field water approximately, it is characterized in that, the edge contour of described polygon shock compaction wheel comprises two non-circular curves that join, and wherein two non-circular curves are tangent at the contact place.
9, a kind of shock compaction paddy soils body segment according to claim 1 is the method for rice field water approximately, it is characterized in that, make before the shock compaction airing of soil, rice field to water content in the 6-14% scope.
10, a kind of shock compaction paddy soils body segment according to claim 1 is the method for rice field water approximately, it is characterized in that, the shock compaction pass is controlled at 2-6 all in the scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00123766 CN1233214C (en) | 2000-09-05 | 2000-09-05 | Rice field irrigation water saving method by impact-compacting soil of rice field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00123766 CN1233214C (en) | 2000-09-05 | 2000-09-05 | Rice field irrigation water saving method by impact-compacting soil of rice field |
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| Publication Number | Publication Date |
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| CN1341343A CN1341343A (en) | 2002-03-27 |
| CN1233214C true CN1233214C (en) | 2005-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 00123766 Expired - Fee Related CN1233214C (en) | 2000-09-05 | 2000-09-05 | Rice field irrigation water saving method by impact-compacting soil of rice field |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103609220A (en) * | 2013-11-26 | 2014-03-05 | 南京市水利规划设计院有限责任公司 | Farmland operation method for reducing quantity of leakage water of soil |
| CN105103684B (en) * | 2013-11-26 | 2017-05-03 | 南京市水利规划设计院股份有限公司 | Method for using land leveling farm machine |
| CN107360748A (en) * | 2017-07-10 | 2017-11-21 | 大连久鼎祥瑞特种工程技术研究院有限公司 | Change Canal in Loess Area fragile ecological environment and increase the physical method in arable land |
| CN107371430A (en) * | 2017-07-10 | 2017-11-24 | 大连久鼎祥瑞特种工程技术研究院有限公司 | Change the physico-chemical process of desert soil structure and ecological environment |
| CN107278404A (en) * | 2017-07-10 | 2017-10-24 | 大连久鼎祥瑞特种工程技术研究院有限公司 | Change Canal in Loess Area fragile ecological environment and increase the physico-chemical process in arable land |
| CN107278405A (en) * | 2017-07-10 | 2017-10-24 | 大连久鼎祥瑞特种工程技术研究院有限公司 | Change the physical method of desert soil structure and ecological environment |
| CN107455034A (en) * | 2017-07-10 | 2017-12-12 | 大连久鼎祥瑞特种工程技术研究院有限公司 | Change Canal in Loess Area fragile ecological environment and increase the chemical method in arable land |
| US11111638B2 (en) | 2019-10-01 | 2021-09-07 | Caterpillar Paving Products Inc | Compaction drum and method of compaction |
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