Water use efficiency: meeting the challenges of drought and water scarcity

Water scarcity and increasingly erratic weather are redefining farming challenges in the UK and across the globe. That’s why water use efficiency is becoming a necessity. IntraCrop’s biostimulants are helping growers do more with less, delivering proven gains in root growth, nitrogen uptake, and stress recovery to maximise yield per unit of water. Cereals, maize, sugar beet and oilseed rape in particular are under increasing pressure to manage and maintain yield under dry or unpredictable conditions.

How does Status® improve WUE?

Status® improves water use efficiency by protecting photosynthesis and sustaining nitrogen assimilation during drought. Its two active ingredients, MTU® and pidolic acid, keep the plant’s metabolic systems active under stress. MTU® helps preserve green leaf area and chlorophyll content, while pidolic acid maintains growth by supporting nitrogen metabolism. This results in stronger root systems, improved drought recovery, and sustained yield even in low-moisture conditions.

How does Nutrino Pro improve WUE?

Nutrino Pro enhances water use efficiency by combining controlled-release foliar nitrogen with the biostimulants pidolic acid and R100™. Pidolic acid supports nitrogen assimilation and helps maintain growth under drought, while R100™ boosts chlorophyll production and leaf uptake of key nutrients like magnesium. Together, they promote more efficient use of both water and nitrogen, even under environmental stress.

How do phosphites improve WUE?

Phosphites improve water use efficiency by enhancing root development and internal plant signalling without acting as a nutrient. Research from the University of Nottingham shows phosphite-treated crops typically achieve a 30% increase in root biomass and higher leaf-level water use efficiency. These benefits stem from improved hormone regulation—particularly increased cis-zeatin levels—which drive lateral root development and improve the plant’s ability to access and utilise water more effectively during stress.

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Key results with Status®

A unique combination of MTU® and pidolic acid, Status supports photosynthesis and nitrogen use even under stress.

• Increases root biomass by up to 43%
• Maintains chlorophyll and green leaf area
• Helps plants recover faster from water stress

Key results with Nutrino Pro

A controlled-release foliar nitrogen with R100™ and pidolic acid.

  • Delivers 95% nitrogen use efficiency
  • Boosts magnesium uptake for chlorophyll production
  • Increases root biomass by 59% under drought

Key results with phosphite

Backed by University of Nottingham research, phosphites are true biostimulants, not nutrients.

  • Increase root biomass by ~30%
  • Improve hormone levels linked to root growth
  • Boost carbon gain per unit of water loss (leaf WUE)
What crops need improved WUE?

All crops can benefit from increased WUE as much of the UK and the rest of the world face increasingly drier conditions and prolonged periods of drought. However, water use efficiency is especially important in:

  • Cereals: tillering and grain fill are vulnerable to moisture stress
  • Maize: suffers yield loss during flowering under drought
  • Sugar beet: long growing season, sensitive to water restriction
  • Oilseed rape: root development and nutrient uptake depend on early moisture

Get advice from our expert team on improving water use efficiency