Sangral Soluble Sinclair Sangral fertilisers are readily soluble in water to provide instantly available nutrients for root and foliar uptake. A range of products is available to provide the optimum feed for different crops, growth stages and season. All Sangral fertilisers contain a full range of balanced nutrients including chelated trace elements to make them readily available for use and magnesium for improved leaf colour. Nitrogen sources have been carefully matched to product use; urea is used where foliar uptake is important and high nitrate nitrogen in feeds for flowering and fruiting. Phosphate levels are also matched to plant requirements to avoid trace element lockup. Technical grade components and an internal drying agent ensure formulations remain free flowing and dissolve rapidly in water. They also contain a red dye to enable the fertiliser to be easily distinguishable from plain water. When to use Sangral soluble fertiliser Intensively grown crops require high nutrient inputs to achieve satisfactory levels of yield and quality but in many instances, particularly with containerised plants, it is impossible to provide sufficient nutrients in the base fertiliser to support a crop through its entire life cycle. Supplementary feeding with soluble nutrients is an efficient means of providing the additional requirements. Fertigation, where a continuous supply of nitrogen is applied through a trickle irrigation system with phosphate and potassium supplied in a base fertiliser is useful for field grown vegetables and fruit crops. Nitrogen is rapidly leached through soil and away from the root zone, especially of shallow rooted crops. The amount of nitrogen applied can be accurately geared to plant demands and minimise leaching losses. Foliar feeding is valuable when crops are unable to take up sufficient nutrients through inadequate root activity. Sangral 1:1:1 and are particularly useful for this purpose. High nitrogen soluble fertiliser can also be used for a rapid greening of fine turf. The response to nitrogen in Sangral is improved by the inclusion of low rates of other nutrients, especially phosphate. ANALYSES Total Nitrogen (N) UreicN AmmoniumN (NH 4 N) NitrateN (NO 3 N) Phosphorus pentoxide (P 2 ) soluble in neutral ammonium citrate and water of which soluble in water 1:1:1 2% 14.5% 6.0% 30.0% 29.0% % 16.0% 5.7% % 9.3% 8.0% 8.0% 20.0% 18.2% 1.8% 7.0% (3.0%P) 10.0% (4.3%P) 5.0% (2.1%P) 12.0% (5.2%P) 20.0% (8.7%P) Potassium oxide (K 2 O) soluble in water 24.0% (19.9%K) 10.0% (8.3%K) 32.0% (26.5%K) 36.0% (30.0%P) 20.0% (16.6%K) Magnesium oxide (MgO) soluble in water 2.0% (1.2%Mg) 2.0% (1.2%Mg) 2.0% (1.2%Mg) 4.0% (2.4%K) % (0.6%Mg) Boron (B) 0.026% 0.026% 0.026% 0.023% 0.026% Copper (Cu) 0.017% 0.017% 0.017% 0.017% 0.017% Iron (Fe) chelated by EDTA 0.15% 0.15% 0.15% 0.165% 0.15% Manganese (Mn) 0.054% 0.054% 0.054% 0.08% 0.054% Molybdenum (Mo) 0.004% 0.004% 0.004% 0.005% 0.004% Zinc (Zn) 0.042% 0.042% 0.042% 0.06% 0.042% 24
Sangral 21+7+24+2MgO+TE Use for vegetative growth phases in longer days when light intensity is high and plants are growing quickly. Suitable for both soil and container grown crops. Sangral 30+10+10+2MgO+TE Ideal for overhead foliar/root feeding of soil grown glasshouse crops such as lettuce and celery where supplementary nitrogen is required. Also useful where a growth boost is required in any freshly planted intensive crop. First choice for fertigation of outdoor vegetable and fruit crops. Also ideal to promote balanced growth of fine turf. Sangral 16+5+32+2MgO+TE The high potash ratio makes this the ideal feed for flowering and fruiting growth stages. High nitrate nitrogen also makes this the preferred choice for all winter growth stages. Sangral 8+12+36+4MgO+TE Use to satisfy the high potash demand during heavy fruiting stages of tomatoes, strawberries, etc. It provides high levels of extra magnesium to reduce the deficiences which occur at this growth stage, High nitraten encourages calcium uptake. Use for winter growth control in vegetable transplants. Also suitable for ornamentals propagation. Sangral 1:1:1 20+20+20+1MgO+TE A high concentration feed which is ideal to take plants through stress periods. The high urea content makes this feed particularly effective and safe as a foliar feed. 25
CONTAINER GROWN PLANTS Brassica Propagation Sangral Bedding plants 1:1:1 Stock Solution Dilution Final Conc. (g/litre) Comments Holding feed For sturdy growth To activate growth Vegetative growth Flowering, winter growth Preplanting feed Celery propagation For sturdy growth Chrysanthemums Propagation in blocks AYR pots Cyclamen Cucumbers in peat bags or beds To maintain growth Summer feed Winter feed Large pots Small pots Main feed If extra N required Foliage plants Growth period Flowering pot plants Vegetative growth Flowering and winter growth Hydrangea Growth period Nursery stock (every watering) Poinsettia 1:400 Primula 1:400 0.25 Raspberries Rieger Begonia Growth period Saintpaulia Growth period Strawberries Peat Modules Tomatoes Notes: 1:125 1:75 1:75 0.25 0.8 1.33 1.33 Slow species Medium vigour Fast growing Use in conjunction with calcium or ammonium nitrate (1) After establishment Feed untail buds visible Flowering, winter growth Growth period Flowering to end of harvest Plant establishment (2 weeks) To flowering/green fruit Fruiting After 5th true leaf expanded From planting From 4 weeks after first pick Recommendations are provided as a general guide. Feed type, dilution rate and frequency of feeding must be adjusted to the needs of the individual crop. Always carry out a small scale trial before making changes to a feeding programme. Stock solution: 1kg Sangral in 10 litres of water. (1) Include 18kg of ammonium nitrate in the 200 litre stock solution of Sangral OR make up a separate stock solution of 40kg calcium nitrate in 200 litres water and dilute this at in tandem with the Sangral. 26
PROTECTED CROPS SOIL GROWN Sangral Alstroemeria Aubergines Stock Solution Dilution Final Conc. (g/litre) Comments Feed OctFeb Feed MarchSept Start feeding immediately after planting Use for first 45 weeks Use through season Carnations & Pinks Use through season Celery Use from 3 weeks after planting Chrysanthemums Feed OctFeb Feed MarchSept Cease feeding at bud colour Courgettes & Melons 1:300 0.33 Start within 3 weeks of planting Cucumbers Soil grown crops French beans Use after first truss has set Lettuce Growth boost Peppers Use for first 45 weeks Use through season Roses Active growth Stocks Start feeding immediately after planting Tomatoes Use for first 45 weeks Use through season FIELD GROWN CROPS Sangral Cut flowers Stock Solution Dilution Kg/ha (bags per acre) 250 (5) 600 (12) Nursery stock 175 (3.5) 200500 (410) 250 (5) Comments Vegetative growth Flowering Slow species Fast growing species Roses Celery 250500 (510) Main feed Runner beans 250 (5) Main feed Strawberries Maincrop Everbearers Raspberries or Top fruit Dessert apples Culinary apples Cherries, pears, plums 140 (3) 160 (3) 300 (6) 160 (3) 350 (7) 175 (3.5) 100 (2) 175 (3.5) 200 (4) Up to flowering Flowering and fruiting Up to flowering Flowering and fruiting Flowering and fruiting If soil P and K are adequate Fertigation Fertigation Fertigation 27
NUTRIENT CONCENTRATION (mg/l) AND CONDUCTIVITY (µs/cm) at varous dilutions, excluding conductivity of background water Dilution Final strength g/litre (bulk tank 1kg/1,000 litres) 1:1:1 N 210 300 160 80 200 P 2 70 100 50 120 200 K 2 O 240 100 320 360 200 MgO 20 20 20 40 10 Conductivity 820 600 1,050 1,280 640 Dilution Final strength g/litre (bulk tank 1kg/1,500 litres) 1:1:1 N 140 200 107 53 134 P 2 47 67 33 80 134 K 2 O 160 67 214 240 134 MgO 13 13 13 27 7 Conductivity 610 430 745 850 450 Dilution Final strength g/litre (bulk tank 1kg/2,000 litres) 1:1:1 N 105 150 80 40 100 P 2 35 50 25 60 100 K 2 O 120 50 160 180 100 MgO 10 10 10 20 5 Conductivity 430 320 560 640 355 Note: Background conductivity of the water supply must be added to the conductivity of the feed solution. 28
APPLICATION Stock solutions Dissolve 1kg of Sangral or Sangral Select in 10 litres of water (1lb in 1gal). Agitate the solution to ensure that the fertiliser dissolves completely. The stock solution should then be diluted for use at a rate dependent on crop growth stage and feeding frequency. Dilutors fixed at dilution ratio of If a dilutor is fixed at a ratio of, then the stock solution strength needs to be increased to give the required dilution, e.g. Dilution required Final concentration Stock solutions g/litre 1 kg per 5 litres water g/litre 1 kg per 7.5 litres water Using bulk tanks To achieve a dilution without using a stock solution and use the diluted feed directly from a bulk tank: Dilution required Bulk tank equivalent Dissolve 1kg in 1,000 litres of water Dissolve 1 kg in 1,500 litres of water Dissolve 1kg in 2,000 litres of water Small applications Use 12 level teaspoons, 49gms, in 9 litres (2 gals) of water and apply using a watering can or coarse sprayer. Overhead irrigation and foliar feeding Apply early morning or during the evening for better absorption and to minimise risk of scorch. Do not apply in bright sunshine or to plants under stress. 29