For proper nutrition of the potato crop is therefore important to consider the environmental factor associated with the characteristics of these soils taking into account the plant genetic material and the production estimate for either fresh market or industry.
Requirements or dietary needs of the crop per hectare vary according to genetic material, but can be seen that potato with an average population density of 22,000 plants and an estimated production of 40 tonnes per hectare, required (in Kg / Ha) : 170 nitrogen, 80 P2O5, 310 K2O, 60 CaO, 50 MgO, 20 sulfur, zinc 0.8 and 2 of boron.
Within a potato nutrition program is very important to consider the roles of different nutrients in each crop physiological stages.
nitrogen:
Requirements or dietary needs of the crop per hectare vary according to genetic material, but can be seen that potato with an average population density of 22,000 plants and an estimated production of 40 tonnes per hectare, required (in Kg / Ha) : 170 nitrogen, 80 P2O5, 310 K2O, 60 CaO, 50 MgO, 20 sulfur, zinc 0.8 and 2 of boron.
Within a potato nutrition program is very important to consider the roles of different nutrients in each crop physiological stages.
nitrogen:
is necessary for the growth of stems, branches, leaves and veins. This element begins to be required at the same time you start sprouting or formation of the first sheet and continues to be needed in large quantities to the stage of physiological maturity (drying of branches and stems), approximately 25 days before harvest. Ideal split into two stages: planting and dressing.
The potato crop response to nitrogen fertilization decreases when deficiencies of potassium, sulfur, phosphorus, magnesium or zinc and also at low temperatures and low solar radiation.
MATCH:
The potato crop response to nitrogen fertilization decreases when deficiencies of potassium, sulfur, phosphorus, magnesium or zinc and also at low temperatures and low solar radiation.
MATCH:
in potato cultivation requires virtually from the time of planting, as it immediately starts the germination process and training of the first root from the seed, where the nutrient is vital. The demand for phosphorus in the crop extends to the flowering stage, reaching almost up to 100 days depending on variety. Since then the plant consumes very small amounts of this nutrient. It is recommended to apply in two stages: planting between 60 to 70% and over the side dressing.
fertilizers high in phosphorus, suitable for planting fertilization should be applied always very near the seed because of the low mobility of this nutrient in the soil. POTASSIUM
:
fertilizers high in phosphorus, suitable for planting fertilization should be applied always very near the seed because of the low mobility of this nutrient in the soil. POTASSIUM
:
is essential in the transport of nutrients processed from the leaves to other plant organs including tubers, hence the potato thickens report directly to their action. Promotes greater plant resistance to pests and diseases and is a regulator of plant water, so that the damaging effect of frost, drought or floods is less for the crop.
withdrawals that are becoming important at the beginning of the flowering stage, about 50 days after germination of the crop. These high potassium withdrawals remain at these levels until physiological maturity stage, about 25 to 30 days before harvest. The second fertilization is an appropriate time to implement most of this nutrient, but many farmers in Colombia manage a single fertilization that are at the time of planting, citing possible water shortages at the time of side dressing that may lead to not achieving a good solution of fertilizer applied at this time.
addition to these three major nutrients needed to keep a proper balance in soil with other bases primarily as calcium, magnesium, sulfur and trace elements that contribute to good thicken and tuber quality.
withdrawals that are becoming important at the beginning of the flowering stage, about 50 days after germination of the crop. These high potassium withdrawals remain at these levels until physiological maturity stage, about 25 to 30 days before harvest. The second fertilization is an appropriate time to implement most of this nutrient, but many farmers in Colombia manage a single fertilization that are at the time of planting, citing possible water shortages at the time of side dressing that may lead to not achieving a good solution of fertilizer applied at this time.
addition to these three major nutrients needed to keep a proper balance in soil with other bases primarily as calcium, magnesium, sulfur and trace elements that contribute to good thicken and tuber quality.
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