How to apply fertilizer to orange properly for high yielding?

Orange, tangerine can be grown in the temperature range of 12-39 C, but the most appropriate is 23-29 C with a light intensity of 10,000-15,000 Lux. Orange, tangerine moist (moisture content is 70-80% of the maximum moisture in the field), but not tolerated. In order to get the high yield, we should apply fertilizer to orange properly.

Physiological and soil requirements, nutrition of orange trees

Physiological characteristics and external requirements

Orange is a citrus fruit and suitable for tropical climate, suitable temperature from 23-29 C degree.

Orange is a perennial fruit that grows up to 60 years. The types of land that can be grown are: river alluvial soil, accretion soil, newly cleared forest, valleys, ancient alluvial soil with 80-100cm thickness, pH 5-7, humus content High, easy to drain, the underground water level is less than 1 meter.

Orange is a citrus fruit

This fruit tree can be planted and fruit all year round with the current flowering technique. Planting density for grafted seedlings is 300-500 trees / ha, spacing between trees and rows is about 4x5m. The common orange cam, Sanh orange occupies a large charge. In addition, there are some like Vinh Orange, Duong Canh orange, Valencia orange, Sanh orange,…

Nutrition requirements

Orange has the highest demand for potassium and protein, followed by phosphorus, magnesium and some trace elements such as copper, iron, zinc, boron, molybdenum, and manganese.

The results showed that the nutrient contents in a fresh orange were 1.7 kg N, 0.5 kg P2O5, 3.2 kg K 2 O, 0.3 kg MgO, 1.1 kg CaO, 0.1 kg S, 0g Fe, 0.8g Mn, 1.4g Zn, 0.6g Cu, 2.8g B. Potassium is the most abundant orange from the soil, so potassium can increase the orange yield by 10-46%. So you should apply fertilizer to orange to protect the orange healthy.

Soil requirements

The soil for growing orange should have at least 60cm of soil, spongy soil, drainage, good mechanical properties (preferably sandy or light meat). It can be grown on many different soil types, from sandy soils, salty soils, mild acid soils, neutral alluvial soils to ancient alluvial soils,… on hills and mountains. We can also apply some agricultural techniques to protect the soil.

Spongy soil, drainage, good mechanical soil for growing orange

However, orange has the long life expectancy, high productivity, good quality in each kind of soil, different ways of making soil, fertilizing. The general requirement is: pH KCl is about 5-7, organic matter is 2% or higher, total N, P, K content is N: 0.1%, P2O5> 0.08%, K2O > 0.5%. The content of trace elements (Cu, Zn, Fe, B, Mo) needs to be minimized.

Depending on soil conditions, density and citrus, fertilizer doses can be reduced or increased by about 30%. If calculated for 1ha, the table data multiplied by the density of orange, tangerine from 400-500 trees/ha (average of 450 trees/ha).

Seasoning of orange

In the North and North Central Coast, the best growing season in March. And you can grow orange in July and August. In the South Central Coast, people grow orange in August, September. For the Central Highlands and South East in June and July. And the Mekong Delta season of growing orange is at the beginning or end of the rainy season.

The density of orange

In the hilly land with a slope of 3-5 degrees, the planting density is from 416 holes (4 x 6m) to 500 holes (4 x 5m) in triangular form. Hole size: Width 0.8 – 1.0m, depth 0.7 – 0.8m.

The reasonable density of growing orange

In the Mekong Delta after land to make the soil. Apply topsoil or alluvial soils along the river to dry. Embankments 40-60cm high, 80-100cm wide, density 5 x 6m or 6 x 6m (240-330 / ha). Between the tissues a hole and mix the soil, remove with the number of feces per hole, put the tree, fill up, pat, watering. After 30 days to plant elected.

Application of fused phosphate and NPK-S Lam Thao for orange

Applying fertilizer to orange usually divided into 3 phases (excluding stage in the nursery): dig holes for planting, basic construction, business. Depending on the type of soil, depending on the ecological area, we apply fertilizer to orange reasonably

NPK-S Lam Thao for orange

Fertilizer application (before planting)

+ Organic fertilizer: If there is organic fertilizer, standard (N-P2O5-K2O total: 0.25-0.3, 0.15-0.20, 0.4-0.5%) It is necessary to apply fertilizer to orange 20-30kg/hole, but if only leaves, grass requires at least 50kg / hole.

+ Lam Thao Fused Calcium Magnesium Phosphates fertilizer: 1.2-1.5kg / hole, 480-600kg / ha.

Using Lam Thao Fused Calcium Magnesium Phosphates fertilizer

+ Powdered lime: Depending on the acid or less sour soil to measure lime powder to be applied. Normally apply 0.5kg / hole, ie 250 – 300kg / ha.

Fertilization at the basic construction stage: The fruitless stage usually takes 3 years

From 1 to 3 years after planting in the annual pit, apply fertilizer to orange 4 times NPK-S 12.5.10-14 or NPK-S 10.5.12-14 in February, May, August, 11.

Applying fertilizer to orange in the fruit stage

• Year 1: each application 0.4 to 0.5 kg NPK-S / tree.
• In the second year: Apply 0.5 – 0.6 kg NPK-S / tree + 25-40kg / manure fertilizer. In February + Apply 1.0 – 2.0kg / lime in November
• Year 3: apply fertilizer to orange of 0.6-0.7 kg NPK-S/ tree.

Fertilizing at the business stage (from the fourth year onwards)

Inorganic and inorganic fertilizers are applied at the same time as canopy projections. Trenches deep around, 30cm wide or dig into holes 20-30cm wide, 20-30cm deep, mixed together, sprinkled into ditches or holes, fill the soil, water, combine with weeding, root cabinet.

Good luck to farmers using NPK fertilizer mixture and NPK-S reasonable to increase yield, and high economic efficiency. You can buy these types of fertilizer in our best dress to get the best price.

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SongthanExim is one of the leading import-export fertilizer companies in Vietnam. We specialize in export and import some kinds of fertilizer. We ensure to supply fertilizer with many brands and types such as Ninh Binh, Lao Cai, Dinh Vu, Van Dien, Lam Thao, and some others imported fertilizer. Our products are really high quality and factory price.

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