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| The Calcium Solution For
Onion Crops |
| LIG-CALCIUM + BORON
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| Calcium and boron are
critical nutrients for onion quality and a deficiency
of these nutrients reduces skin quality and storage life
of onions. Water management is critical in calcium nutrition
as the most common cause of calcium deficiency is moisture
stress. The limited root systems of onion plants also
restrict nutrient uptake. Hot weather and high plant nitrogen
levels also promote the problem. Calcium and boron deficiency
also weaken cell walls and make onions more susceptible
to disease and adverse weather conditions. The very low
plant mobility of calcium and its preference for new shoots
means that tissue analysis is usually a poor indicator
of onion calcium status. |
| THE ADVANTAGES OF
LIG-CALCIUM + BORON |
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- high plant availability of calcium & boron
- rapid leaf uptake & plant utilization
- chelated boron ensures no burning
- inclusion of boron improves calcium uptake & movement
- will not wash off leaves under high volumes of irrigation
- improves skin quality
- increased firmness and storage life of onions
- contains no chloride & low levels of nitrogen
- compatible with fungicides & insecticides
- Australian made
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| APPLICATION |
| Onions - 2-3 sprays
@ 7.5 L/Ha commencing at mid growth and repeated at 2-3
week intervals. For high risk crops increase application
rate to 10 L/Ha. |
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| The Copper Solution For
Onion Crops |
| LIG-COPPER |
| Copper is essential
for lignification, a process that form, stabilizes and
strengthens cell walls and membranes. A copper deficiency
weakens cell walls and reduces skin strength and thickness.
This also makes both the plant and bulb more susceptible
to disease, especially fungal diseases such as Downy Mildew.
Due to better skin quality, copper also has the secondary
effect of improving the storage life of bulbs. Copper
is also required for starch production and bulb filling
and enhances the taste characteristics of onions. Copper
deficiencies are common on alkaline soils and heavily
leached acid sands. High levels of available soil nitrogen
and molybdenum also reduce copper uptake |
| THE ADVANTAGES OF
LIG-COPPER |
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- high plant availability of copper through leaf
- rapid leaf uptake & plant utilization
- chelated copper ensures no burning
- improves skin strength & thickness
- superior binding properties allows early application
- increases disease resistance
- better onion quality and storage life
- compatible with fungicides & insecticides
- Australian made
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| APPLICATION |
| Onions – Apply 4 L/Ha
at five leaf stage and another 1-2 sprays during mid growth.
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| The Iron Solution For Onion
Crops |
| LIG-IRON |
| Iron deficiencies are
common on most alkaline soils, especially those containing
free lime (calcareous) in the root zone. Hence iron deficiency
is often referred to as ‘lime induced chlorosis’. If limestone
is close the surface onions are particularly susceptible
due to their limited root system. Deficiencies usually
appear after heavy rainfall or where the root zone is
saturated for a prolonged period. High levels of soil
phosphate can also reduce iron availability. The most
significant effect of iron deficiency is a reduction in
the size of chloroplasts (chlorosis) and as a result,
lower levels of photosynthetic activity. Iron deficiency
can also inhibit root elongation and reduce the disease
resistance of plants. Iron deficiency effects the young
and intermediate leaves with bright yellow (chlorotic)
stripes that start from the middle of the leaf and move
toward the tips. |
| THE ADVANTAGES OF
LIG-IRON |
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- high plant availability through leaf or soil
- rapid leaf uptake & utilization
- chelated iron is very safe
- improves photosynthesis, root development & growth
- compatible with LIG-ZINC + MANGANESE
- superior binding properties sticks nutrients to upright leaves
- compatible with herbicides, fungicides & insecticides
- cost effective Australian made product
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| APPLICATION |
| Onions - apply 2.5
L/ha at 3 leaf stage with LIG-ZINC + Mn and repeat 2-3
weeks later. If deficiency persists apply @ 5 L/ha as
required. |
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| The Phosphorous Solution
For Onion Crops |
| LIG-POLYPHOS |
| Apart from nitrogen,
phosphorous is the most important nutrient in agricultural
production. Phosphorous is essential for root growth,
energy production, flowering and bulb quality. Most Australian
soils are naturally low in phosphorous, however even after
many years of applying phosphorous containing fertilizers
the levels of plant available phosphorous are still relatively
low, especially on alkaline soils. Under these conditions,
young onion plants with their small root systems struggle
to source sufficient soil nutrients. Supplying chelated
phosphorous as either a foliar spray or soil application,
stimulates root growth and enables the young plants to
access soil phosphorous and other nutrients that were
previously unavailable |
| THE ADVANTAGES OF
LIG-POLYPHOS |
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- high plant availability through leaf or dripper
- rapid uptake and plant utilization
- chelated phosphorous will not lock-up on alkaline soils
- stimulates root and top growth of onions
- improves onion quality and yield
- superior binding properties for early foliar application
- compatible with fungicides & insecticides
- cost effective Australian made product
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| APPLICATION |
| Onions - 2-3 sprays
@ 5 L/Ha every 7-10 days starting when plants are 10 cm
tall. Through drippers start at emergence and repeat every
10 days @ 5 L/Ha. |
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| The Potassium Solution For
Onion Crops |
| LIG-K + BORON |
| Plants require large
amounts of potassium for growth and in many cases their
potassium requirements are equal to, or above that of
nitrogen. While potassium levels are generally adequate
in most soils, root uptake of potassium can be very inefficient,
especially when plant root systems are limited. Potassium
produces sugars required for bulb filling and increased
bulb weight. Low potassium promotes uneven size of bulbs,
especially under stop/start growing conditions. The role
of boron is twofold. Firstly, boron increases the translocation
of sugars to developing bulbs, and secondly, improves
the skin strength and disease resistance of onions. Balanced
nutrition is the key to improving quality without compromising
yield, and potassium is an extremely important nutrient
in this respect. |
| THE ADVANTAGES OF
LIG-K + BORON |
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- high plant availability of potassium through leaf
- rapid leaf uptake & translocation to developing bulbs
- chelated boron is very safe & enhances skin quality
- increases bulb weight and yields
- promotes even bulb development
- binds to thin leaves even after heavy irrigation
- improves bulb quality
- compatible with fungicides & insecticides
- Australian made product
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| APPLICATION |
| Onions - Apply 5 L/Ha
at 3-5 leaf stage and 2-3 sprays @ 10 L/Ha from mid growth
stage and repeat every four weeks. |
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| The Zinc Solution For Onion
Crops |
| LIG-ZINC + MANGANESE
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| Zinc is the most limiting
trace element in Australian agriculture and deficiencies
are common on alkaline and sandy soils. Zinc is essential
at bulb formation, so therefore early application is important.
If zinc is low when bulbs are forming, bulb size will
be uneven and yields will be significantly reduced. Because
zinc needs to be applied early and onions have limited
leaf and root area, it is important that the zinc spray
being used is able to bind to leaves and remains available
to the plant if it comes in contact with the soil. Zinc
is also required for photosynthesis and root and shoot
growth. |
| THE ADVANTAGES OF
LIG-ZINC + MANGANESE |
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- high plant availability through leaf or soil
- rapid leaf uptake & plant utilization
- chelated zinc ensures no burning
- enhances photosynthesis & quick growth of young plants
- binder allows early application with minimal leaf area
- more even bulb size
- increases yields
- compatible with LIG-IRON & fungicides & insecticides
- cost effective Australian made product
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| APPLICATION |
| Onions - 2 L/Ha at
hook stage and again 10 days later and apply 1-3 sprays
@ 4 L/Ha beginning at 4-5 leaf stage. Number of sprays
depends on severity of deficiency. |
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