滴头的选择
滴灌带的形式很多。有的滴灌带内镶独立滴头,有的内镶进水口、出水流道连续塑料片,有的为双壁塑料薄膜,在上层压制进水、出水流道而成。使用效果有一定差异。多进水口的滴灌带通常抗堵塞效果好。缝隙式出水口滴灌带通常有一定的抗负压吸土能力。
There are many forms of drip irrigation belt. Some drip irrigation belts are inlaid with independent emitters, some are inlaid with continuous plastic sheets of inlet and outlet channels, and some are made of double-walled plastic film, which is pressed by the upper water inlet and outlet channels. There are some differences in the use effect. Drip irrigation belts with multiple intakes usually have good anti-clogging effect. The drip irrigation belt with slit outlet usually has a certain ability of resisting negative pressure to absorb soil.
片状内镶滴灌管制造成本较低,壁较薄时运输成本低。多节水口连续贴片式滴灌带抗堵塞性能好,价格与滴头间距无关,非常适合密植垄种蔬菜。
The cost of drip irrigation with sheet insert is lower and the transportation cost is lower when the wall is thinner. Multi-water-saving continuous patch drip irrigation belt has good anti-clogging performance, and its price has nothing to do with dripper spacing. It is very suitable for planting vegetable in close ridge.
柱状滴灌管强度较高,但造价较高,运输成本较高。宽行距作物,高价值作物可选用滴灌管。果园,高价值蔬菜田,防风林带可选用滴灌管。
The columnar drip irrigation pipe has higher strength, but its cost is higher and its transportation cost is higher. Wide row spacing crops, high-value crops can choose drip irrigation pipe. Orchard, high value vegetable field, windbreak belt can choose drip irrigation pipe.
在选用滴灌带时,通常内镶式滴灌带是使用较多的,内镶式滴灌带由于滴头间距种类较多,价格相对较低等因素的得到广大用户的喜爱。在选用滴灌带时,最主要的还是要根据地势、地形、作物间距来选择,选择好合理的灌溉方式,才能达到很好的效果。
When choosing drip irrigation belts, the inlaid drip irrigation belts are usually used more. Because of the variety of drip spacing and the relatively low price, the inlaid drip irrigation belts are popular with the majority of users. When choosing drip irrigation belts, the most important thing is to choose a reasonable irrigation method according to the topography, topography and crop spacing, so as to achieve good results.