CN103380714B

CN103380714B - Nearly root returns infiltrating irrigation water-saving irrigation method

Info

Publication number: CN103380714B
Application number: CN201310323100.3A
Authority: CN
Inventors: 武羡慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-29
Filing date: 2013-07-29
Publication date: 2015-09-02
Anticipated expiration: 2033-07-29
Also published as: CN103380714A

Abstract

The invention discloses a kind of nearly root and return infiltrating irrigation water-saving irrigation method, the soakaway trench (5) with water seepage hole is connected with the water source of higher position, soakaway trench (5) is embedded in root system (7) below of underground and crop (1), in the below laying plastic of soakaway trench (5); Water source arranges above ground level 0.5 to 1m; Soakaway trench should slightly tilt, and make water inlet outline higher than water side, soakaway trench end will reserve the imperforate section of 1-10cm, and when burying underground, imperforate section and port plug should be exposed at outside earthing; When burying soakaway trench (5) underground, soakaway trench (5) buries the thicker sand of one deck particle (6).Can be economized on water 50-70%, and increase the yield per unit area 25-30%; It is compared with sprinkling irrigation mode, and can economize on water 10-20%, and increase the yield per unit area 10-15%.

Description

Nearly root returns infiltrating irrigation water-saving irrigation method

Technical field

The present invention relates to agricultural technology field, in particular a kind of irrigation method---nearly root returns infiltrating irrigation water-saving irrigation method.

Background technology

In the vast arid agricultural area of northern China, because annual precipitation is little, irrigation is the requisite link of agricultural production.But still take the mode of broad irrigation to fill with field in many places, one is greatly waste water resource, two is make the continuous lifting of subterranean water level, cause large area to plough and Secondary Saline occurs, three is due to surplus of pouring water, loss of soil nutrient and porosity reduction can be produced, in the crop short time " shock ", the series of negative such as stasi affect.If this irrigation method does not add change, in the course of time, water resource can be exhausted, and the meeting salinization of soil of more farmland, fertile arable land can be more and more barrenr because of the loss of nutrient.

Therefore, prior art existing defects, needs to improve.

Summary of the invention

Technical problem to be solved by this invention provides a kind of nearly root to return infiltrating irrigation water-saving irrigation method for the deficiencies in the prior art.

Technical scheme of the present invention is as follows:

A kind of nearly root returns infiltrating irrigation water-saving irrigation method, the soakaway trench (5) with water seepage hole is connected with the water source of higher position, soakaway trench (5) is embedded in root system (7) below of underground and crop (1), in the below laying plastic of soakaway trench (5); Water source arranges above ground level 0.5 to 1m; Soakaway trench should slightly tilt, and make water inlet outline higher than water side, soakaway trench end will reserve the imperforate section of 1-10cm, and when burying underground, imperforate section and port plug should be exposed at outside earthing; When burying soakaway trench (5) underground, soakaway trench (5) buries the thicker sand of one deck particle (6).

The Water Saving Irrigation Mode of " nearly root returns infiltrating irrigation " is a kind of Water Saving Irrigation Mode that water-saving rate is high, yield-increasing efficiency is high, facility cost is low being suitable for multiple planting patterns, multiple kinds of crops, multiple environmental construction cultivation, multiple soil types, multiple orographic condition.It is compared with the mode of broad irrigation, and can economize on water 50-70%, and increase the yield per unit area 25-30%; It is compared with sprinkling irrigation mode, and can economize on water 10-20%, and increase the yield per unit area 10-15%.

Accompanying drawing explanation

Fig. 1 is water-saving irrigation schematic diagram of the present invention;

1 crop, 2 soil, 3 humid soils, 4 mulch films, 5 soakaway trenchs, 6 sands, 7 root systems.

Embodiment

Below in conjunction with specific embodiment, the present invention is described in detail.

With reference to figure 1, the soakaway trench 5 with intensive water seepage hole is connected with the water source of higher position, soakaway trench 5 is embedded in below the root system 7 of underground and crop 1, utilize the pressure differential between water source and soakaway trench 5, without any under the condition of power, water can ooze out continuously, realizes round-the-clockly uninterruptedly evenly pouring water.For preventing from pouring water to subsurface wastewater infiltration system, in the below laying plastic of soakaway trench; Water source is arranged wants above ground level 0.5 to 1m, to form the pressure differential between face, water source and seepage mouth, thus under remaining on the condition without any power, continues to pour water; When laying soakaway trench, one deck plastic foil to be spread under it, in case ooze under deep layer of pouring water.Will notice that soakaway trench should slightly tilt, namely water inlet outline is higher than water side simultaneously, can residual water in discharging tube during to facilitate the flushing of soakaway trench and to freeze in the winter time, with frost-cracking-preventing (pouring water for non-brooder); When making soakaway trench, end will reserve the imperforate section of certain length (1-10cm), and when burying underground, imperforate section and port plug should be exposed at outside earthing, is convenient to draining in the minor groove of pre-made, also facilitates and rinses soakaway trench and discharge water winter; When burying soakaway trench underground, the thicker sand of one deck particle 6 must be buried on soakaway trench, then cover with common soil, the bleeding holes of soakaway trench can be avoided like this to block.

Soakaway trench 5 is embedded in below crop root, and namely the position of about 20-25CM under earth's surface, can determine according to the degree of depth of Different Crop root system.After being oozed out by soakaway trench 5 when pouring water, because of the suction-operated of solid phase particles in soil horizon, pouring water and can upwards " return and ooze ", the moistening crop root soil body, by crop is absorbed.Irrigated the fields, water waters earth's surface in the past, and this technology is poured into underground; Past is water saving, and by plastic mulching, on earth's surface, this technology is that mulch film has been laid on underground.

Pour water from the bottom of crop root, pour water and to ooze without under earth's surface, maintain the continuous permeability of topsoil, be not interrupted the breathing of root system of plant, do not make Crop development be obstructed; Traditional irrigation method is poured water and to be oozed from earth's surface, pours water to dissolve nitrogen, phosphorus, potassium and other nutrient components in soil horizon and together permeate the ground, and makes nutritive loss serious.The method is poured water without soil bacterial diversity, but upwards returns and ooze, and can not make nutrition leak; Traditional irrigation method, water, in infitration process, can make the space between soil granular reduce, make soil compaction, decrease the air in soil, moisture and nutrient component, soil fertility is declined.And the method for " nearly root returns infiltrating irrigation ", soil table can be made to remain drying regime, and soil horizon loosens, and air, photo-thermal are sufficient, and biological chemistry action enlivens, and can produce a large amount of nutrient component and carbonic acid gas, make plant growth luxuriant; Plastic greenhouse cultivation vegetables, a very large problem is that in canopy, carbonic acid gas is not enough.Traditional irrigation method, water is covered on earth's surface, can dissolve the carbonic acid gas in soil horizon, booth.And the method for " nearly root returns infiltrating irrigation ", without covering water, can not pour water any more and ooze in earth's surface, carbonic acid gas can not be made to run off; Retentively surface drying is dry, can reduce air humidity in booth, reduces damage by disease and insect, reduces Pesticide use, makes vegetables environmental protection more; Soil horizon dry tack free is loosened, and groundwater evaporation capable of blocking, makes water-saving result more remarkable; Traditional sprinkling irrigation, drip irrigation technique, source of water supply needs certain pressure, needs to consume the energy, and the method, without any need for power, does not consume the energy; Traditional sprinkling irrigation, drip irrigation technique facility of pouring water all is placed in earth's surface, under the effect of weathering, Exposure to Sunlight, and ageing equipment speed, and this technology most facilities is embedded in underground, is subject to edaphic protection, its aging speed is slower;

This technology is best suited for all kinds of vegetables in plastic warm shed, top grade flower, the pouring water of medicinal material, also be suitable for each fruit trees, view Qiao, shrub, lawn and all kinds of ecological forest of flowers and drought-hit area, the pouring water of sand-fixation forest, be also applicable to the irrigation of the field crops such as corn, wheat, Chinese sorghum, millet, beans, potato.

Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.

Claims

1. a nearly root returns infiltrating irrigation water-saving irrigation method, it is characterized in that, the soakaway trench (5) with water seepage hole is connected with the water source of higher position, soakaway trench (5) is embedded in root system (7) below of underground and crop (1), in the below laying plastic of soakaway trench (5); Water source arranges above ground level 0.5 to 1m; Soakaway trench should slightly tilt, and make water inlet outline higher than water side, soakaway trench end will reserve the imperforate section of 1-10cm, and when burying underground, imperforate section and port plug should be exposed at outside earthing; When burying soakaway trench (5) underground, soakaway trench (5) buries the thicker sand of one deck particle (6).