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The purpose of giving lime in traditional ponds is

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The purpose of giving lime in traditional ponds is – All stages of pond engineering require complete drainage, which can be done in summer. The purpose of this dewatering is to reduce the sulphide acids and toxic compounds that form after the pond is submerged, allowing air exchange within the pond to allow mineralization of the organic matter needed to continue growing. , and get rid of bugs. and illness. and wild fish seeds. Predator or competition.

To facilitate drainage, this can be done in small waves. Pond draining takes 1-2 weeks, until the soil is cracked, but not dry or dusty (Fig. 1). Very dry ponds are not good for button growth. So it’s not too dry, meaning when you step on the ground at the bottom of the pool, your feet are still 10-20 cm deep. Conversely, if the drainage is not perfect, the callicap that grows at the bottom of the pond is not strong and easily sticks to the substrate. This will cause sediment to float to the surface of the pond and decompose, contaminating the pond. To find out the degree of dryness by measuring the length of the cracks in the cracks, if the layer reaches 1-2 cm then it is considered dry enough.

The purpose of giving lime in traditional ponds is

The bottom sludge must be removed when the bottom sludge can be removed (Figure 2). Most farmers cover them when submerged in water so that the solid soil particles dissolve in the water, maintaining NH3 –N and H2S levels.

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Plowing is done with a hand tractor or hoe, with a depth of not more than 30 cm. This is done based on the effect of nutrition on the growth of plankton at a certain depth and the ability of toxic substances to affect the life of the shrimp at the bottom of the pond. Basic soil management is only carried out in acid lakes and lakes that have been active for a long time, and in some cases, when the toxic substances in the lump of soil can be completely oxidized (dry weather). After the bottom of the reservoir is drained, it is turned over and the silt that is in the hole must be removed while the dam is being repaired. Then soak in water (10-20) for ± 7 days and dry again.

Improvement of soil structure, namely increasing the amount of soil and water so that extreme changes in acidity (pH) do not occur.

Clean up the lead caused by aluminum and iron and get enough calcium, to increase the amount of nutrients like phosphate.

In acidic soils with a pH of 7, liming is not carried out or only a small amount of liming is carried out as a disinfectant (Poernomo 1992). Calcification is done when the pond bottom is soft and is done when processing or turning the pond bottom. The soil at the bottom of the pond is left to dry in the sun after calcification with the kapitan.

Purpose And Benefits Of Providing Lime In Cultivation Ponds

The most effective way to get rid of insects (especially triceps, crabs and wild shrimp/fish) is through thorough emptiness. Currently the use of lime and lime juice at high temperatures can also function to kill shrimp pests (Mustafa 1991). Fish pests can be controlled by using saponins whose effects are influenced by water and pond salinity. At low salinity that is salinity.

Fertilizers are used after pest control, and in the current conditions, all technical measures are used. The type and amount of fertilizer is determined by the level of soil fertility under each reservoir. Water fertility depends on the amount of chlorophyll in plants, and is an interaction of various factors including the availability of nutrients in water (Andarias 1991). There are also many signs of aquatic reproduction and aquatic plant species, both in phytoplankton and phytobenthos species, where both groups are important factors in shrimp and fish farming in ponds.

The main growth on fertilizers is clay (under moss). Type and amount of fertilizer needed per hectare: Fertilizer must be mixed with good manure at a rate of 1-2 tons per hectare, then spread evenly on the bottom of the pond. In addition, a mixture of 100-150 kg/ha of urea and 50-75 kg/ha of SP36 was also spread in the ponds. Add water to the pond until it reaches a height of 10-20 cm using a strainer and let it drain for 2 weeks. When the water appears on the surface and the bottom of the pond looks green with a clay border, water is added slowly. lake to a depth of 60-100 cm. . If the water conditions are strong enough, the map is ready to be reproduced.

If it is estimated that the pond is flowing from natural nutrients (return period + 1 month), use Urea and SP36 fertilizers at a dose of 10-15 kg/ha of Urea and 5-10 kg/ha of important additional fertilizers. / including SP36.

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What grows in the next fertilization is plankton, and it is done every 10-14 days. Fertilizer then sprinkled on the surface of the pond. Fertilization in lakes with low acidity (pH < 6) is not recommended. Fertilizer can also be added if the soil is composted or rock soil is suspended in front of the water inlet.

Water is added to the tendon fibers which have been stored for 4 days. If the farm does not use tendon fields, ponds must be chlorinated at 5 ppm before stocking shrimp and water must not be changed for 1.5 months. Collected water is made regularly and discharged into the nursery with a 20-30% water change in the expansion fields every three days.

Tolan PL 57-60 is provided in the form of long flats with many adjustments to the land area. Compared to Pl 11-17, trout are more tolerant of large changes in salinity and therefore require less time to develop (Figure 3). It is better to broadcast it when the temperature is cold, namely at 06.00 – 08.00 or 17.00 – 22.00. Avoid spreading soybeans that have gathered in one place. Seeds are hatched when the water does not smell of chlorine and the water is brown. Capital density of 5 people/m2 or 50,000 people/ha. Mix 5 kg/ha of fresh fish/squid around the edge of the pond or found fry. Don’t give meat, shrimp/pita or crab, and give good pellets 1 kg per hectare every day for 3 consecutive days, so that the daily life of the crabs can reach more than 70%.

In mixed crops (crabs and strips) the seeds are not sown together but are spread out first. This aims to provide opportunities for shrimp to adapt to the new environment. Stocking is done after the shrimp are in the pond for about two or three weeks.

Tilapia Seeding Business Opportunities in Ponds

The success of pond cultivation is not only through pond construction, pond design and irrigation, soil management and seed procurement, but also through conservation from planting to harvesting. Activities that must be carried out during the recovery period are:

Even though natural food in the form of plankton, seaweed and moss is sufficient, this agricultural business still requires additional feed in the form of good pellets or bran, especially in the highlands. This supplement is given one month after storage until harvest. The additional feed given contains 30% protein from the management feed, namely coarse feed (15-20 individuals/m2) and important feed (6-14 individuals/m2) of 3-5%/BB. Is. Traditional shrimp farming at a density of 1-2 heads/m2/day requires good feed growth without commercial feeds, but in addition to natural feeds, traditional shrimp culture (3-5 heads/m2) and the latter can be used. 2 Monthly business feed required. care. This supplement uses ancho (picture 4), the method is to put food in several bowls according to the food eaten, then put ancho everywhere in many places so that the food can be used using the crab and bandaid method. Giving this way always saves more food and boats to see.

Overfeeding can release residues which if damaged will affect water quality. Therefore, it is very important to change the water frequently (Figure 5). Water changes in the ponds are carried out periodically, namely a maximum of 25% every 2 weeks, after changing the water, liming is immediately carried out up to 50-100 kg/ha, and if necessary, fertilization is carried out, namely an average of 35 kg/ha of urea and SP36 10 kg/ha , to maintain the purity of the water. Hoy, that is, 25-40 cm.

If the condition of the pond water is too dirty/dirty or the water is clear without plankton, then the pond water must be replaced. And if the water is running, immediately change the pond water or add 1.2 ppm chlorine (12 kg/ha/1m or 7.2 kg/ha/60 cm pond water depth) Sprinkle 100kg/ha lime. in the ponds, they are given a waterwheel/boat engine (2 pieces/ha) at night so that the water does not clot and the shrimp cannot swim.

Plus Traditional Ponds

The determining factors for shrimp yields are pond soil and pond water quality. If the pond bottom is well prepared, the soil and water will be fine.

The problems that arise in shrimp farming are not small. The main disadvantages include the occurrence of crab disease. According to research by the Research and Development Center for Fisheries, the emergence of shrimp disease is due to poor environmental conditions and lack of care. The key to successful shrimp farming is preparing the pond bottom properly.

According to Ir. UKF Momo fish cultivation experts who provide a lot of advice to farmers on how to maintain shrimp farming conditions are as follows: prepare the bottom of the pond.

After the shrimp are harvested, all the water in the pond is drained, then dried/dried for a week. When the soil at the bottom of the pond shows signs of cracking, the black sludge is drained and discarded. At the same time, the pool is maintained, as is the renovation

Aquaculture Info Magazine March 2019 Edition By Bambang Suharno

The purpose of giving compensation, the purpose of giving motivation, the purpose of giving oxygenation, the purpose of giving nebulizers, the purpose of giving exclusive breastfeeding, the traditional way of removing lime in water, the purpose of giving immunization, the purpose of giving mgso4, the purpose of giving breast milk, the purpose of giving vaccines, the purpose of giving additives to food, purpose of giving mp-asi

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