1. Classification by usage form (most commonly used)

1. Fixed Fertigation Machine (installed in pump house)

• Bypass type (parallel installation): mainstream product on the market. It does not change the flow rate of the main pipeline, suitable for connected greenhouses and large parks, and supports multi-path rotational irrigation.

• Mainline type (series installation): the unit comes with a built-in water pump with relatively small flow rate, suitable for small and medium-sized greenhouses.

• Large-scale integrated fertigation station: multi-channel and high-flow complete pump house equipment supporting high-standard farmland projects.

Features: fixedly installed in the pump house with pre-buried pipe network and non-movable.

2. Mobile Fertigation Vehicle (trailer / truck-mounted type, matching the fertigation tank you inquired about)

1) Small hand-pushed mobile model: powered by 220V, small-volume liquid storage tank, for scattered plots in greenhouses. 2) Tractor-towed trailer model: 3～12 m3 liquid storage tank (PE rotomolded / steel anti-corrosion tank), diesel / 380V power supply. Applied in farmland, orchards and hilly lands. No fixed pump house required, available for alternate operation on multiple plots. 3) Truck refitted model: mounted on truck chassis, suitable for fertilizer application on large-scale bases with frequent site transfer.

Advantages: equipped with self-contained liquid storage tank, no civil pump house needed, flexible site transfer.

2. Classification by automation level

1. Simple manual model (Venturi / differential pressure fertilizer tank): manual valve adjustment, no automatic detection, low cost for small-scale individual farmers; EC/pH monitoring unavailable. 2. Semi-automatic touch-screen fertigation machine: touch screen for scheduled and quantitative fertilization, real-time EC and pH monitoring, supports multi-zone rotational irrigation, widely used for fruits and vegetables in greenhouses. 3. IoT fully automatic intelligent fertigation machine: remote control via mobile APP, connectable to soil moisture and weather sensors. The system automatically adjusts fertigation formula and records data, suitable for large cooperatives and smart agriculture projects.

3. Classification by number of fertilizer suction channels (optional)

• Single channel: 1 kind of mother solution, for small area with single crop

• Dual channel: two fertilizers can be injected simultaneously

• Three channels: independent proportioning of nitrogen, phosphorus and potassium mother solutions with the strongest versatility

• Four channels or more: capable of adding medium and trace elements, acid-base regulating solution, for high-value fruits & vegetables and soilless culture

4. Classification by pipeline connection mode

1. Bypass type (parallel): first choice for high-flow irrigation; the main irrigation pipe does not pass through the main unit. 2. Mainline type (series): water and fertilizer are mixed inside the machine before delivery to fields, commonly used in greenhouses with medium and low flow rates.

5. Classification by fertilizer type

1. Inorganic fertilizer model: compatible with water-soluble fertilizers, equipped with precision fertilizer injection pumps (mainstream type). 2. Special model for organic liquid fertilizer: equipped with multi-stage filtration and stirring system to treat biogas slurry and liquid organic fertilizer and prevent clogging.

? Quick Selection Guide

1. Connected fixed greenhouses with pump house → fixed bypass type with 3/4 channels, semi-automatic / IoT model
2. Farmland, orchards, scattered plots without fixed pump house → trailer-type mobile fertigation vehicle (with large-capacity anti-corrosion tank)
3. Small individual farmers with limited budget → simple Venturi fertilizer applicator / basic single-channel model
4. High-end fruits & vegetables, smart agriculture projects → IoT fully automatic multi-channel model

If needed, I can prepare a product parameter sheet for mobile fertigation vehicles with tanks for quotation.