CN1596612A - Water-saving irrigation method by applying slurry to rice field - Google Patents
Water-saving irrigation method by applying slurry to rice field Download PDFInfo
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- CN1596612A CN1596612A CN 200410041932 CN200410041932A CN1596612A CN 1596612 A CN1596612 A CN 1596612A CN 200410041932 CN200410041932 CN 200410041932 CN 200410041932 A CN200410041932 A CN 200410041932A CN 1596612 A CN1596612 A CN 1596612A
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Abstract
A water-saving irrigation method by applying sludge for rice field includes such steps as burning rice husk, mixing its ash with water, cooling, uniformly spread on the surface of rice field, rotary ploughing, immersing the field in water for at least 12 hr, and rotary ploughing again.
Description
Technical field
The present invention relates to a kind of rice field water-saving irrigation method, especially a kind of water-saving method that does not change traditional paddy rice planting process by the rice field before planting being carried out antiseepage handle, the slurry water-saving irrigation method is mixed in specifically a kind of rice field.
Background technology
China is the most ancient country of rice cultivation in the world, and rice makes history 7000 approximately, is one of world's rice-cultivating area of origin.About 500,000,000 mu of the existing paddy rice cultivated areas of China account for 30% of cereal crops sowing area, are the staple food crops of China.Simultaneously, China also is a country that water resource extremely lacks, and gross amount of water resources is 2.8 hundred million sides.Only accounting for 5.6% of world's gross amount of water resources, is one of 13 poor-water states in the world.Agricultural water accounts for 88% of national total water amount at present, and the paddy rice water accounts for about 70% of agricultural water, therefore, the research rice water-saving is irrigated, improve the water production efficiency of irrigation water,, promote national economy to continue high-efficient development guaranteeing sustainable utilization of water resource, realize aspects such as social stability and progress, all have crucial meaning.Present water-saving irrigation research mainly concentrates in the research of the anti-seepage of channels and irrigation program, and the former is studied from the angle that how to reduce the water delivery loss, and the latter is studied from the irrigation method of paddy rice to reduce irrigation quantity.
The seepage in rice field is the big main reason of rice field water consumption, also is the where the shoe pinches of water saving difficulty maximum.Because after irrigation and rainfall, in a single day the water layer that the field is set up or the soil water have surpassed the maximum moisture holding capacity in field, will produce seepage, a large amount of water are wasted because of seepage, and the principal element of seepage is relevant with rice field seepage action of ground water gradient with the quality of soil.China is vast in territory, the soil texture differs greatly, add the acting in conjunction of factors such as underground water, the percolation rate difference in rice field is also bigger, percolation rate is at 5～15mm/d generally speaking, few have a 1.5mm/d, many Chao Guoed 20mm/d, leakage accounts for 30%～70% of paddy rice total water consumption, if therefore can reduce the leakage of paddy rice, also just reached the purpose of water saving, and some Antiseep methods that adopt at present, as compacting, exist workload big, need by large-scale compacting machinary and tillage equipment repeatable operation, poor practicability not only, and also cost is higher, general peasant household is difficult to problems such as realization, and therefore being badly in need of a kind of simple water-saving irrigation method solves the leakage problems in rice field.
Summary of the invention
The purpose of this invention is to provide a kind of being applicable to and before rice transplanting, use, do not change that the traditional water seed rice is planted irrigation method and cost is low, simple, the slurry water-saving irrigation method is mixed in the tangible rice field of water-saving result.
Technical scheme of the present invention is:
The slurry water-saving irrigation method is mixed in a kind of rice field, by changing the soil structure in rice field, reduces the osmotic coefficient of soil, reaches the purpose of water-efficient irrigation, it is characterized in that:
A, be raw material, under 500～700 ℃ temperature condition, burn it to such an extent that the rice chaff ash is mixed slurry, be cooled to behind the normal temperature standby with rice chaff;
B, before the soaked field, the normal temperature rice chaff ash of above-mentioned gained is mixed slurry and pave equably on the surface, rice field;
The rotary tillage operation is carried out in c, the rice field that the above-mentioned rice chaff ash that paves is mixed slurry, and the rotary tillage degree of depth is not less than 10cm;
D, by every mu of 80～120m
3Water consumption inject rice field after the above-mentioned rotary tillage and carry out the soaked field and be no less than 12 hours;
E, again with rotary tillage machinery to being with the water farming through the rice field behind the above-mentioned soaked field.
The present invention has also taked following technical measures:
The thickness that the rice chaff ash that the surface, rice field evenly paves is mixed slurry is 2～10mm, and thin excessively then water-saving result is not obvious, and blocked up water-saving result increase is not remarkable.
The incineration temperature of rice chaff is the best with about 600 ℃.
The soaked field water consumption is with every mu of 100m
3About be best.
The rice chaff ash is mixed slurry and can be replaced with soft mud, can further save cost.
Beneficial effect of the present invention:
1, the present invention has opened up the approach of a new rice field water-saving irrigation, has once investment, and permanent advantage of being benefited under the situation that does not influence output and rice matter quality, can reduce leakage to greatest extent, reduces seepage 10%～20%.
2, turn waste into wealth, help environmental protection.China's rice chaff ash quantity is huge, has 4,000 ten thousand tons every year approximately, does not find suitable development and utilization measure at present as yet, become agricultural wastes in many places, environment is produced huge pressure, and the present invention is turned waste into wealth, and just can reach agricultural wastes the purpose of water-saving and yield-increasing through simple process.The heat that produces when industrialization is burned also can be used, and produces economic benefit.
3, increase geology nutrition, the partial organic substances in the rice chaff ash can be converted into fertilizer, can reduce fertilizer amount, prevents the ground caking, increases fertility of land.
4, cost is low, and operation is simple, and water-saving result is obvious.
5, both be applicable to that paddy field carried out water-saving irrigation, and also be applicable to the water saving of dry farming plant, result of use is fairly obvious in sand loam soil, and water-saving rate can improve 10%～20%.
Embodiment
The present invention is further illustrated below in conjunction with embodiment.
The slurry water-saving irrigation method is mixed in a kind of rice field, by the change soil structure in rice field, reduces the osmotic coefficient of soil, reaches the purpose of water-efficient irrigation, shows with osmotic coefficient 10
-2～10
-4Sand between the cm/s and sandy loam rice field are example description operation method and water-saving result.Concrete grammar is:
A, be raw material, under 600 ℃ temperature condition, burn it to such an extent that the rice chaff ash is mixed slurry, be cooled to behind the normal temperature standby with rice chaff;
B, before the soaked field, the normal temperature rice chaff ash of above-mentioned gained mixed slurry and pave thick equably at the about 4mm in surface, rice field;
The rotary tillage operation is carried out in c, the rice field that the above-mentioned rice chaff ash that paves is mixed slurry, and the rotary tillage degree of depth is not less than 10cm;
D, by every mu of 100m
3The rice field injected after the above-mentioned rotary tillage of water consumption carry out the soaked field 1 day (24 hours);
E, again with rotary tillage machinery to being with the water farming through the rice field behind the above-mentioned soaked field;
Can carry out rice transplanting in f, the paddy field after above-mentioned farming, later available common rice cultivating method carries out irrigation management, until results.Then can directly be with the water tillage and cultivation coming year.
Through actual measurement, the osmotic coefficient of the paddy field of handling through said method is from 10
-2～10
-4Cm/s is reduced to 10
-3～10
-5Cm/s, water-saving rate reaches 10%～20%.
Above-mentioned rice chaff ash is mixed the also available soft mud of slurry and is replaced, and can further save cost, but its effect is obvious not as the rice chaff ash, can be used selectively.Also the rice chaff ash can be mixed use with soft mud during concrete enforcement.
Can find out that thus the present invention is better to the sand loam soil effect, then effect is obvious not as sand loam soil to the clayed soil that contains a large amount of clays, but still has water-saving result preferably.The optimal soil of the present invention is that osmotic coefficient is 10
-2～10
-4Sand between the cm/s and sandy loam.Therefore in the specific implementation, at first the field piece that will implement is investigated, with good conditionsily done osmotic coefficient investigating and soil particle analysis, determine that soil is to this adaptation of methods.
Water saving principle of the present invention is: normal temperature rice chaff ash main component is SiO
2, accounting for 92%, its characteristic has determined the performance of its water conservation and moisture-holding.At first, it by the particle of a large amount of nanoscales (＜50nm) the evacuation point adhesive aggregation forms, by with fully the mixing and stirring of soil, tiny rice chaff ash powder is filled between the bigger soil particle, has improved the grating of soil, has reduced the osmotic coefficient of soil; Secondly, it has very strong chemism, and the mineral matter combination in energy and the soil changes soil structure, thereby makes soil closely knit, has reduced the osmotic coefficient of soil; The 3rd, have the honeycomb hole (＜10 μ m) of a large amount of micro-meter scales in the structure of itself and by a large amount of SiO
2The non-tight adhesive aggregation of particle and the nanoscale hole that forms (＜50nm), the water of this hole absorption is difficult for blending the heat energy evaporation under the gravity and the performance that plays water conservation.
Claims (5)
1, the slurry water-saving irrigation method is mixed in a kind of rice field, it is characterized in that:
A, be raw material, under 500～700 ℃ temperature condition, burn it to such an extent that the rice chaff ash is mixed slurry, be cooled to behind the normal temperature standby with rice chaff;
B, before the soaked field, the normal temperature rice chaff ash of above-mentioned gained is mixed slurry and pave equably on the surface, rice field;
The rotary tillage operation is carried out in c, the rice field that the above-mentioned rice chaff ash that paves is mixed slurry, and the rotary tillage degree of depth is not less than 10cm;
D, by every mu of 80～120m
3Water consumption inject rice field after the above-mentioned rotary tillage and carry out the soaked field and be no less than 12 hours;
E, again with rotary tillage machinery to being with the water farming through the rice field behind the above-mentioned soaked field.
2, the slurry water-saving irrigation method is mixed in rice field according to claim 1, it is characterized in that it is 2～10mm that rice chaff ash that the surface, rice field evenly paves is mixed the thickness of slurry.
3, the slurry water-saving irrigation method is mixed in rice field according to claim 1, and the incineration temperature that it is characterized in that described rice chaff is 600 ℃.
4, the slurry water-saving irrigation method is mixed in rice field according to claim 1, it is characterized in that described soaked field water consumption is every mu of 100m
3
5, the slurry water-saving irrigation method is mixed in rice field according to claim 1, it is characterized in that described rice chaff ash mixes slurry and can replace with soft mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410041932 CN1251579C (en) | 2004-09-10 | 2004-09-10 | Water-saving irrigation method by applying slurry to rice field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410041932 CN1251579C (en) | 2004-09-10 | 2004-09-10 | Water-saving irrigation method by applying slurry to rice field |
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| Publication Number | Publication Date |
|---|---|
| CN1596612A true CN1596612A (en) | 2005-03-23 |
| CN1251579C CN1251579C (en) | 2006-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410041932 Expired - Fee Related CN1251579C (en) | 2004-09-10 | 2004-09-10 | Water-saving irrigation method by applying slurry to rice field |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103098680A (en) * | 2013-02-26 | 2013-05-15 | 云南省农业科学院农业环境资源研究所 | Cost-saving efficiency-increased rice farming cultivation method |
| CN103109616A (en) * | 2013-03-11 | 2013-05-22 | 重庆地质矿产研究院 | Method for repairing water leakage of paddy field in secondary-stacking system coal mining subsidence ash and mudstone layer weathering area |
| CN106550620A (en) * | 2016-11-16 | 2017-04-05 | 四川省农业科学院作物研究所 | A kind of live cultivated broadcasting method of late inbred rice machine |
-
2004
- 2004-09-10 CN CN 200410041932 patent/CN1251579C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103098680A (en) * | 2013-02-26 | 2013-05-15 | 云南省农业科学院农业环境资源研究所 | Cost-saving efficiency-increased rice farming cultivation method |
| CN103109616A (en) * | 2013-03-11 | 2013-05-22 | 重庆地质矿产研究院 | Method for repairing water leakage of paddy field in secondary-stacking system coal mining subsidence ash and mudstone layer weathering area |
| CN106550620A (en) * | 2016-11-16 | 2017-04-05 | 四川省农业科学院作物研究所 | A kind of live cultivated broadcasting method of late inbred rice machine |
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| Publication number | Publication date |
|---|---|
| CN1251579C (en) | 2006-04-19 |
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