Because the avocado is high in protein, high energy and low-sugar characteristics, so for a lot of avocado's reputation as the "Forest butter", "food fruit", "the poor of the cream" and other shows of avocado a lot of advantages. In addition, because the high fiber content, avocado fruit is good treatment of constipation.
Sulphate of Potash and Avocado Production www.sopib.com (150-200 ppm) in the soil before planting, Mineral nutrition while maintaining a balance with calcium and magnesium. The avocado is a tropical to subtropical tree, Ideally, potassium should represent between with severe cold being the most limiting factor 0.7 and 2.4 % of the leaf dry matter. In a potassium to its successful cultivation. It can be grown on deficient tree, the leaves are small and narrow a wide range of soil types, but requires good and necrotic spots appear on the older leaves. drainage as it cannot tolerate flooding. A soil A high level of potassium in the soil and leaves pH from 6 to 6.5 is preferable. reduces the development of both vascular browning and pulpy spots in the fruit. Mineral requirements for different avocado cultivars (kg/ton of production) N P2O5 K2O Hass 3.60 0.55 6.10 Fuerte 1.30 0.39 2.35 Lula 2.80 0.80 5.46 In the past, the avocado was thought to need few mineral nutrients. Deficient trees may not show the symptoms immediately, so mineral nutrition should be monitored through regular leaf and soil analysis. Potassium deficiency in avocado leaves Potassium sulphate for higher yield The avocado tree does not tolerate high levels of chloride, either in the soil or in irrigation water, with a toxicity threshold considered to be 0.25% chloride in the leaf dry matter. Consequently, chloride-based fertilizers such as MOP (potassium chloride) should be avoided. The main symptom of chloride toxicity is a Potassium, the key nutrient light grey-brown scorch on the tips and edges of the older leaves, which spreads back along them in an irregular pattern. Potassium is an important factor for a high level of avocado production. Its role in sugar Opposite is an example of a fertilization programme synthesis and translocation of assimilates is based on potassium sulphate (SOP), single super essential for the quality of the fruit. Potassium phosphate (SSP) and calcium nitrate (CaN). should be adjusted to an adequate level Calcium is an important element to increase the resistance of the roots to disease and the storage life of the avocado fruit. Canopy CaN SSP SOP diameter (m) g/tree 2 50 200 50 4 175 300 200 6 350 400 400 8 650 600 750 10 1000 1000 900 12 1500 1200 1600 Sulphur in avocado production The experiment below compares different methods of applying 200kg K2O/ha to Hass Sulphur (S) is an important nutrient for plant avocados grown in the state of Michoacan in growth, playing a key role in amino acid Mexico. These are fertigation and soil application synthesis. However, sulphur deficiency is with and without foliar sprays after flowering. becoming increasingly frequent. Cumulated 2004-2006 production according The optimum range for the sulphur content in to application method the avocado leaf dry matter is between 0.2 to 0.6%. Potassium sulphate also contains 18% S which covers the plant's sulphur requirements. In addition, sulphur is helpful in pest and disease control. kg/tree Source : inifap Mexique (2006) Results show the benefit of foliar application in enhancing root absorption and, consequently, on fruit production. Sulphur deficiency in avocado leaves Thanks to the effect of its combination of potassium and sulphur, sulphate of potash is recommended for high avocado yields, as well as high quality fruit. Different forms of SOP available from Tessenderlo Group Standard: for direct application or for use in the manufacture of compound fertilizers. GranuPotasse®: a granular form ideal for bulk blending or for direct application with an even distribution on the soil. SoluPotasse®: a highly soluble form for fertigation or foliar application. Imported and distributed by: Tessenderlo Group Fertilizers giving nature a helping hand Tessenderlo Group Troonstraat 130 B-1050 Brussels, Belgium Tel: +32 2 639 1811 Fax: +32 2 639 1940 www.sopib.com www.tessenderlogroup.com email@example.com
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