What is the drip irrigation?

What is the drip irrigation?

Drip irrigation is to use plastic pipe to send water to the root of crops through the orifice or drip head about 10mm in diameter.

Drip irrigation is currently arid region one of the most effective way of water-saving irrigation, water utilization rate can amount to 95% of drip irrigation has higher water production effect, can combine fertilizer at the same time, improve the effectiveness Applicable ornamental fruits vegetable crops and greenhouse irrigation in arid places can also be used for field crop irrigation Its deficiency is drop head easy fouling and plugging, thus should make strict filtering processing for the water.

Drip irrigation introduction

Drip irrigation is in accordance with the requirements for crop water requirement, through the pipe system and installation on the capillary water, the water drop by drop, water and nutrient and crop needs evenly and slowly drip into the crop root zone soil of drip irrigation method without destroying the soil structure, soil internal fat gas hot water frequently to keep the good condition of the suitable for crop growth, the evaporation loss is small, do not produce surface runoff, almost no deep seepage, is a way of water-efficient irrigation drip irrigation water is the main characteristic is small, water flow for 2 to 12 liters per hour, therefore, a water continues for a long time, water cycle is short, can do low water frequently irrigation; Low working pressure is required to control the irrigation water accurately, which can reduce the evaporation among ineffective trees without waste of water. Drip irrigation can also be automated.

Drip irrigation specification

Save water save labor, increase production increase income because when irrigation, water does not move in the air, does not wet the leaf surface, also does not have the effective moist area outside the soil surface evaporation, therefore direct loss is at least in the evaporation water; Easy to control the amount of water, does not produce surface drip irrigation system (3) the drip systems show pictures show (3) the runoff and soil depth leaking reason can be less than 35-75% of water irrigation can save water and mountain realize the irrigation water shortage opens a new route between strains due to not enough water supply, weeds grow not easily, thus greatly reduce the interference of crops and weeds compete for nutrients, reducing the weeding labor because the crop root zone will be able to maintain the best condition of water supply and supply condition, it can increase production 2. The drip irrigation system on the quality of management personnel and the requirements of intensive cultivation of farmland is higher, the cost relative to traditional canal irrigation is high, and because of the effect of impurity mineral precipitation causes a capillary drip head congestion, drip irrigation uniformity is also difficult to guarantee These are the obstacles to widespread promotion of drip irrigation In order to promote agricultural modernization and sustainable development, at present our country is comprehensively promoting efficient water-saving irrigation technology, the development prospect.

Advantages

Save water and fertilizer

Local micro irrigation, drip irrigation is a full pipeline and reduce water leakage and loss to the minimum at the same time, and needed by the crop root zone can be timely supply moisture, does not exist outside the loss of water, and water use efficiency can be easily combined with fertilization, greatly improve the irrigation is dissolved after filling the fertilizer irrigation system, due to chemical fertilizer combined with irrigation water, fertilizer nutrient drip irrigation systems show picture display pictures (1) the drip irrigation system Evenly applied directly to the crop root layer, realize the synchronous water, greatly improving the effective utilization rate of fertilizers, at the same time as a small local control, micro irrigation, water leakage is less, so the appropriate amount of fertilizer can save irrigation fertilization technology to reduce pollution, timely trace elements supplement expensive for crops provides a convenient, and can avoid the waste of drip irrigation system only by manual or automatic control valves, and combined with fertilization, so it can obviously save labor input, reduce the production cost.

Controlling the temperature and the humidity

Conventional furrow irrigation of greenhouse, a large irrigation water, the surface moist for a long time, not only the canopy temperature geothermal reduced quickly, recovered slower, and evaporation capacity increasing, the indoor humidity is too high, easy to cause plant diseases and insect pests of vegetables or flowers Belongs to local micro-irrigation by drip irrigation, most of the dry soil surface, and uniform drop head slowly to the root soil layer water, recovery of ground temperature, reduce moisture to evaporate, reduce indoor humidity has obvious effect Using membrane under drip irrigation, namely decorate the drip line (with) under the membrane, the effect is much better Additional drip irrigation because of easy operation, can implement high frequency of irrigation, and discharge hole is very small, the flow velocity is slow, each irrigation time is longer, the soil moisture change is small, it can control the root zone soil can keep for a long time in close to the most suitable for vegetables to grow flowers such as humidity Due to control indoor air humidity and soil moisture, can obviously reduce the occurrence of plant diseases and insect pests, which can reduce the dosage of pesticide again.

Maintaining soil texture

Traditional channel border irrigation irrigation water under the action of larger, more erosion of soil due to compaction and erosion, if not timely for cultivating scarification, can lead to serious harden and air permeability decline, to a certain extent of damage to soil structure And drip irrigation is a trace of irrigation, water slowly evenly into the soil, the soil structure can keep the effect, and the suitable soil water fat thermal environment is formed