The soil doesn’t lie.
Walk through any wheat field in Kasur district in late November and you’ll notice something the numbers already know: the earth is tired. Decades of monoculture farming — planting the same crop, season after season, on the same strip of land — has left Punjab’s smallholder fields depleted of nitrogen, cracked at the surface, and increasingly dependent on chemical fertilizers that most families can barely afford.
But in a cluster of demonstration plots quietly maintained by PRAT agronomists over the past two growing seasons, something different is happening. Between the rows of wheat, low-growing mustard plants are spreading their leaves. The soil beneath them is darker, looser. And at harvest, the numbers are hard to ignore: per-acre income up by as much as 22% — with zero additional fertilizer input.
This is intercropping. And it may be one of the most overlooked tools in Punjab’s agricultural recovery.
What Is Intercropping, and Why Does It Work?
Intercropping is the practice of growing two or more crops simultaneously on the same piece of land. It is not a new idea — farmers across South Asia practiced versions of it for centuries before the Green Revolution pushed monoculture to the center of agricultural policy in the 1960s and 70s.
The science behind it is straightforward. Different crops have different root depths, different nutrient demands, and different growth cycles. When paired correctly, they complement rather than compete with each other. Mustard, for instance, has a taproot that breaks up compacted subsoil — creating channels that benefit the shallower wheat roots growing alongside it. Legume crops like chickpea fix atmospheric nitrogen directly into the soil, reducing the need for urea applications in the following season.
The result is a system that is biologically more efficient than any single crop grown alone.
What PRAT Found in Kasur
Between the Rabi seasons of 2023–24 and 2024–25, PRAT’s agronomy team set up paired demonstration plots across six villages in Kasur district — one plot under conventional wheat monoculture, one under wheat-mustard intercropping — on farms with comparable soil quality, water access, and landholding size.
The findings were consistent across sites:
- Yield impact on wheat: Minimal. Average wheat yield in intercropped plots was 3–5% lower per acre than in monoculture plots — a tradeoff farmers initially worried about.
- Mustard revenue: The mustard harvest, sold for both seed oil and animal fodder, more than compensated for the wheat yield gap. Net per-acre income in intercropped plots was 18–22% higher on average.
- Soil organic matter: After two seasons, intercropped plots showed measurably higher organic matter content — a leading indicator of long-term soil health and future productivity.
- Fertilizer use: Intercropped plot farmers applied 15–20% less urea in the second season, as mustard residue partially replenished nitrogen levels.
For a farmer working two to three acres — the typical smallholder in this region — a 20% income increase per acre is not a marginal improvement. It is the difference between repaying a seasonal loan and rolling it into the next cycle.
So Why Isn’t Everyone Doing It?
This is the question that keeps our field team up at night. The evidence is there. The costs are low. The results are replicable. And yet, intercropping remains a fringe practice across most of rural Punjab.
The reasons are layered, and they have very little to do with farmer intelligence or willingness.
1. The input supply chain is built for monoculture. Agricultural dealers in most tehsils stock seeds, fertilizers, and pesticides calibrated for single-crop systems. A farmer asking for mustard seed at the right planting density for intercropping will often be told the variety is unavailable, or given incorrect spacing guidance. The supply chain has not caught up with the practice.
2. Extension services are thin — and outdated. Punjab’s agricultural extension network, once a backbone of rural knowledge transfer, has been chronically underfunded for years. The extension workers who do reach villages are often trained in older monoculture-era methods. Intercropping gets no time in their visit schedules.
