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Leafy greens

Broadly speaking, leafy greens cover a diverse range of species, including cruciferous vegetables like kale, bok choy, brussels sprouts, and cabbage, as well as lettuces, the leaves of the beet family and herbs and less known edible leafy greens. There are about 8000 plants with edible leaves across the planet including indigenous species.

Specific considerations for leafy greens

Preparing soils prior to planting and building soil carbon levels is important for high-yielding crops. While nutrition is typically supplied as fertigated or foliar-applied fertilisers, options do exist to incorporate sustained release fertiliser during soil preparation.

Soil carbon plays a vital role in nutrient capture, cycling, and delivery to plants as well as supporting microbial populations that help to agglomerate soils, enhancing water infiltration and holding capacity; improving water use efficiency, and building a buffer for plants to heat stress.

A BioAg program can offer sustained release phosphorus and micronutrient fertilisers, as well as a range of soil and foliar biostimulants that supply soil carbon, food sources for crops and soil biology, and natural chelators that aid the binding of nutrients to soils and uptake to plants, thus minimising nutrient loss pathways.

The BioAg approach

BioAg nutrition programs are incorporated into a growers current nutrition program. Our objective is to make fertiliser and other inputs work better and build and support healthy and balanced soils and plants. Programs are custom-made for each block, using advanced soil and tissue analysis. These integrated programs typically incorporate a range of BioAg solid and liquid nutrients, often associated with conventional inputs. BioAg fertility programs can be developed to meet organic certification requirements.

Soil test

An experienced and Fertcare accredited BioAg agronomist works with you and provides technical expertise on your crop. If you don’t already have recent soil test data, we arrange a soil test for you. The results provide essential information about the soil fertility and soil structure for better performance.

A tailored program

Based on the results of soil tests, crop requirements and other factors such as soil structure, climate, history of the block, and targets that you are trying to achieve, we provide a tailored program that aims to improve soil fertility and maximise yield response. We support you through the program to ensure that inputs are applied at the right time, in the right way.

Leaf and tissue testing

Any nutritional program cannot foresee the changes in weather, disease, or pests, that may impact a crop.  During the season, growers may observe issues or evidence of stress in their crop. This may be due to greater growth or yields than planned, a trace element shortage or abiotic stresses. An on-farm inspection and associated leaf or tissue tests will promptly identify any issues, which can quickly be addressed by applying the appropriate inputs.

High yielding crops require fertile balanced soils

Key to highly productive crops is the function of soils. Soil structure, chemistry and biology are critical in supporting crops throughout the growing season. By improving all aspects of the soil, crops will benefit from improved access to moisture, due to improved infiltration and water holding capacity, improved access to nutrition through improved nutrient cycling, fixation (for N) and a reduction in loss pathways, improved resilience to abiotic stresses and disease, improved root growth providing access to additional moisture and nutrients as well as improved carbon sequestration and a range of other benefits (link to resources - soil health).

Beneficial microorganisms stimulate the plant’s root growth and help protect it from abiotic stresses. This is made possible through mutually beneficial relationships that microbes develop with plants, for example mycorrhizal associations.   BioAg products programs supply essential macronutrients (N, P, K, S, Ca), trace elements (B, Zn, Cu etc.),  microbial food and metabolites beneficial microorganisms that colonise root systems, improving soil function, plant health and productivity.

Several almonds lay on a flat surface

Leafy greens (that do not form heads) – key features of a BioAg program

The following table illustrates the cropping process and potential solutions depending on soil test results and other contributing factors. Call your BioAg Area Manager to discuss your individual needs.

Prepare soils (and raise beds in heavy clay soils) for planting.
Objective
Balance soil nutrient profile N, P, K, Ca, S, trace elements and organic C.
Activity
Incorporate ameliorants, compost, and sustained release fertiliser and trace elements to build soil fertility.
BioAg Product
BioAgPhos: Rates depend on soil and crop requirements and the soil test results.
Prepare soils (and raise beds in heavy clay soils) for planting.
Objective
Balance soil nutrient profile N, P, K, Ca, S, trace elements and organic C.
Activity
Incorporate ameliorants, compost, and sustained release fertiliser and trace elements to build soil fertility.
BioAg Product
BioAgSoP: Rates depend on soil and crop requirements and the soil test results.
Prepare soils (and raise beds in heavy clay soils) for planting.
Objective
Balance soil nutrient profile N, P, K, Ca, S, trace elements and organic C.
Activity
Incorporate ameliorants, compost, and sustained release fertiliser and trace elements to build soil fertility.
BioAg Product
BioAgBor: Rates depend on soil and crop requirements and the soil test results.
Prepare soils (and raise beds in heavy clay soils) for planting.
Objective
Balance soil nutrient profile N, P, K, Ca, S, trace elements and organic C.
Activity
Incorporate ameliorants, compost, and sustained release fertiliser and trace elements to build soil fertility.
BioAg Product
and other required fertilisers, ameliorants and compost
Seed germination
Objective
Enhance seed germination and seedling growth to encourage early growth and reduce stress at transplanting.
Activity
Tray soil drench at sowing and after germination or at two weeks.
BioAg Product
Soil & Seed: soil drench 20:1
Before transplanting (or sowing)
Objective
Improve soil properties, nutrient retention, soil carbon levels, buffering capacity, and reduce salt stress.
Activity
Soil application of soil conditioners and biostimulants.
BioAg Product
HydraHume: 15 – 20L/ha
After transplanting (or sowing)
Objective
Stimulate root growth and plant establishment, building shoot biomass, stimulate soil microbiota to support crop growth.
Activity
Soil application of a soil biostimulant; apply diluted through an irrigation system or boom spray, in conjunction with liquid N fertiliser.
BioAg Product
Soil & Seed: 8 – 10L/ha
Stem elongation and rosette growth
Objective
Stimulate root growth and plant establishment, building shoot biomass, stimulate soil microbiota to support crop growth.
Activity
Soil application of a soil biostimulant; apply diluted through irrigation system or boom spray, in conjunction with liquid N fertiliser.
BioAg Product
Soil & Seed: 2 – 4L/ha
Stem elongation and rosette growth
Objective
Stimulate vegetative growth, rectify identified micronutrient deficiencies.
Activity
Foliar application of BioAg biostimulants with or without trace elements.
BioAg Product
Balance & Grow with required micronutrients: 2 – 4L/ha
50% of harvest target leaf mass
Objective
Enhance nutrient uptake to support improved growth.
Activity
Soil application of a soil biostimulant; apply diluted through irrigation system or boom spray.
BioAg Product
Soil & Seed: 2 – 4L/ha
50% of harvest target leaf mass
Objective
Stimulate vegetative growth.
Activity
Foliar application of BioAg biostimulants when the crop head starts to form.
BioAg Product
Fruit & Balance: 2 – 4L/ha

Leafy green resources

  • Leaf and tissue testing

    Your BioAg Area Manager may recommend a leaf or tissue test in addition to a soil test. In some cases, your BioAg Area Manager will do the leaf or tissue testing with you or for you. Use this procedure if you are doing the sampling without a BioAg expert present.

    Read more
  • Regenerative agriculture

    The term regenerative agriculture has become aligned, or associated hand in hand, with the improvement of soils, improved soil fertility, and the benefits this provides to farms and rural communities. The approach typically promoted is a holistic one, taking into accoun...

    Read more
  • How to fortify compost with BioAg

    Compost benefits crops and pastures by adding stabilised carbon to the soil. This provides a rich food source for the microbial system, feeding and expanding this system with greater nutrient cycling by the microbial system, and increased nutrient uptake to the crop or ...

    Read more
  • BioAg proprietary products escorting nutrients for better crop performance

    Micronutrients play a critical role in fruit set and fruit development. In viticulture or horticulture – now is the time to consider your needs for micronutrients and how to best deliver them to your crop. Micronutrients play an important role in a plant’s development, ...

    Read more

Recommended products

bag of BioAg Phos solid fertiliser

BioAgPhos

Solid Fertiliser

Highly reactive phosphate fertiliser made from high-grade reactive phosphate rock combined with BioAg’s microbial digesting agent.

BioAg Biostimulant product Soil & Seed

Soil & Seed

Biostimulant

Formulated to improve soil microbial activity, natural soil fertility and moisture and nutrient utilisation.

BioAg Biostimulant product Balance & Grow

Balance & Grow

Biostimulant

Formulated to increase vegetative growth, root development and soil microbial activity. Ideal for broadacre, pastures and horticulture.

BioAg Biostimulant product Fruit & Balance

Fruit & Balance

Biostimulant

Formulated to increase flowering, fruit set and soil microbial activity. Fruit & Balance enhances the nutritional value and quality of fruit or grain by increasing plant sugar levels.

BioAg product shot of BioAg SoP

BioAgSoP

Solid Fertiliser

Organically certified granular form of fertiliser containing potassium and sulphur. Immediately available to crops and plants. Ideal for crops with a high potassium demand and sensitive to chloride.

BioAg product shot of BioAgBor

BioAgBor

Trace Element

A sustained-release form of boron suited to a range of enterprises such as horticulture, vegetables, pastures and field crops.

BioAg Biostimulant product HydraHume

HydraHume

Biostimulant

A liquid solution of Potassium Humate providing a product suited to building soil humus and increasing soil fertility.

bag of BioAg Phos solid fertiliser

Committed to organics

With a core range of natural fertilisers and biostimulants, BioAg can offer an extensive range of products certified by Australian Organics, suitable for use in organic systems.