Fertilizer that arrives after the planter has passed is fertilizer you store for a year. Produce that rides warm loses shelf life nobody can put back. We coordinate refrigerated, flatbed, dry van and placarded capacity around the two windows your season actually runs on, across the 50 states and through the South Texas crossings.
In short
Agriculture runs against two clocks that do not negotiate. The planting window opens when soil temperature and moisture say it opens, and it closes whether or not the fertilizer, the seed and the crop protection arrived. The harvest window is the same deadline in reverse: from the minute a melon is cut or a head of lettuce is packed, every hour in transit is subtracted from the shelf life the receiver is buying. In between sits a seasonality nothing else in freight matches, because every grower in a region plants in the same weeks and cuts in the same weeks, so the trailers everyone needs are the trailers nobody can find. Then there is the cargo itself: one ton bulk bags of urea, a herbicide whose hazard class comes from its formulation, treated seed that can never precede a feed load, and a reefer of field packed produce, all belonging to the same operation in the same month.
The cargo
What decides the load
The gist of each one here. The shipping guide has every one in full.
Inputs have a date, not a window. A load of starter fertilizer or seed treatment that arrives the week after the planter has already crossed the field does not become useful again for eleven months.
Read it in full in the guideA reefer holds temperature. It does not remove field heat.
Read it in full in the guideCrop protection chemistry is a hazmat conversation before it is a freight conversation, and the hazard class comes from the formulation, not from the crop or the name on the jug.
Read it in full in the guideBulk bags fail by slumping. A one ton FIBC is a fabric bag with no structure of its own, so it lifts by all four loops, it does not stack unless it is rated to, and if it is not blocked and braced it leans into its neighbor over the first hundred miles until the whole floor load is out of shape and a seam tears.
Read it in full in the guideThis page is about what goes into the field and what comes out of it: fertilizer, seed, chemistry, feed, forage, grain, produce, irrigation material and harvest packaging.
Read it in full in the guideDobie coordinates transportation: a vetted carrier network managed by dedicated logistics specialists.
Read it in full in the guide
The numbers
Who this is for
The process
What is moving and how it is packaged, its temperature limits or its hazard class, the bag, bale or pallet count and weight, where it loads (field, cooler, plant, elevator, retail location) and the date the ground or the receiver actually needs it.
Mode and equipment come from the commodity, not from what is cheapest that morning. Pickup is timed to the cut and cool schedule or to the planting date, and the season's repeat lanes are covered before the weeks when every grower in the region wants the same trailer.
Operating authority in force, cargo insurance with limits that correspond to the load, and equipment that corresponds to the assignment, plus the ag specific checks before it loads: prior cargo, washout, dry floor, intact air chute, continuous air and the correct setpoint, hazmat endorsement and placards where the formulation calls for them.
Pulp temperatures and seal recorded at loading, status through transit, condition documented at pickup and at delivery, and the paperwork returned so a rejection, a dock or a short count is argued from a record instead of from memory.
Equipment
The modes farm inputs and harvest freight actually use, one page each.
Yes, and the plan starts before the trailer is loaded. The product has to be precooled, because a reefer holds temperature and does not pull field heat out of a pallet. At loading, pulp temperature is taken in the product and recorded, the return air path and chute are checked, the unit runs continuous air rather than cycling, and the setpoint comes from the commodity sheet instead of a default. Condition is documented at pickup and at delivery, which is the record a rejection or a claim is argued from.
Yes. Hazmat is a defined service line here, and the class comes from the formulation, not from the crop: Class 3 flammable liquids for solvent based concentrates, Division 6.1 for toxics, 5.1 for oxidizers such as ammonium nitrate based product, Class 9 for environmentally hazardous substances, and no transport regulation at all for some water based formulations. Send the safety data sheet and the shipping description rather than the trade name, because two products for the same pest can sit in different classes. Carriers are assigned with the authority, the endorsement and the equipment that match, papers carry the UN number, proper shipping name, class, packing group, emergency response information and a 24 hour emergency number, and the load is planned around the rule that keeps poison class material away from foodstuffs and feed.
Weight arrives before cube does. Twenty some one ton bags put a van at legal weight with cube left over, so placement is an axle decision, not a stacking decision. Bags lift by all four loops, do not stack unless the bag is rated for it, and get blocked and braced so they cannot lean into each other and tear a seam. Urea and ammonium blends are hygroscopic, so a dry floor and a tarp that does not pond water are what keep a free flowing blend from arriving as a cake somebody has to break up by hand.
As soon as the agronomic calendar exists, not when the product is ready to ship. The problem is not your volume, it is that every operation in the region needs the same equipment in the same three or four weeks, while reefers follow produce seasons around the country. Hand over the season's dates and the lanes get covered out of the vetted carrier network ahead of the surge. Booked the afternoon before, you are bidding against your neighbors for whatever is left.
It does, because it changes how the load is built. Small squares baled much above 20 percent moisture, and large squares baled above the mid teens, keep respiring and generate heat in the stack, and a tarp pulled tight over wet hay traps that moisture instead of letting it breathe. Hay is also a high cube, light load that hits legal height before legal weight, and width allowances are a state by state patchwork, so the route decides the stack and the tarping plan. Securement follows the general cargo rules: aggregate working load limit of at least half the weight of the cargo, with tiedown counts set by article length and weight.
Not without a washout somebody can document. Treated seed is dyed and tagged not for food, feed or oil purposes precisely because it cannot enter a grain channel, and feed and feed ingredients sit under sanitary transportation requirements that expect the prior cargo and cleaning information to be available on request. That is why prior load is one of the questions asked before dispatch on every ag assignment, alongside dry floor, odor and trailer condition.
Yes. The South Texas corridor is home territory and Pharr is the main produce gateway on this stretch of the river. The point is that the cold chain does not pause for the crossing: the broker's timing, the maneuvering yard and the northbound handoff all sit inside one schedule that ends at the receiver's door, with prior notice and the agricultural inspection planned in rather than discovered. Some fruit fly host commodities also carry a cold treatment requirement, so tell us the commodity early.
No. This page is the cargo of agriculture, the inputs going into the field and the crop coming out of it. Machinery is a separate move with separate trailers, permits and loading, and it lives on the farm equipment and machinery transport page. Same team, same account, different load plan.
Last reviewed: August 2026 · Reviewed by the Dobie Transport logistics team
A logistics specialist reviews your lanes and comes back with pricing and capacity. Support runs 24/7.
Every carrier is vetted for operating authority and insurance, and we check the certificate before every dispatch, not once a year. USDOT 3411782 · MC 1100274
