Introduction To Tea Farming Project Report:
The following information is about the Cultivation Practices of Tea crop and Tea Farming Project Report.
Tea is an evergreen shrub native to Asia. It is categorized as a beverage, normally consumed hot either prepared with water or milk. Tea is considered to have originated from southwest China, where it was consumed as a medicinal drink. Slowly the fame of tea spread to East Asian countries and finally reached Europe around the 16th century. Tea cultivation is mainly restricted to tropical and subtropical regions. This is the second largest beverage consumed by the entire world next to the water. The tea plant is biologically known as Camellia sinensis. The tea leaves contain caffeine but is non-alcoholic in nature. The life of a tea bush is 100 years in terms of economic use. The different forms of tea obtained these days are due to the difference in their manufacturing process. This tea farming project report describes the farming requirements and at the end, one can find about the cost and profit analysis for farming tea on a specific piece of land.
Tea farming project report – scope and importance
India is one of the largest producers of tea in the world accounting to 1325.05 million kgs of production in FY 2018. The revenue generated from the export of tea also has risen to 5064.88 crores. This shows that the production of tea in a developing country like India helps boost its economy. The major tea producing states in India are Assam and West Bengal. For the state of Assam, tea production contributes 15% to the state’s economy. The tea industry creates employment opportunities for the rural population of the state. The total tea produced in Assam and West Bengal accounts for 45% and 22.36% of the total production respectively. The tea from Assam has a pungent smell and is famous for its liquor, whereas the tea from West Bengal is famous for its aroma and flavor. Due to these globally acclaimed varieties of tea produced in the country, there has been a great demand from countries like Egypt, Iran, Pakistan, Russia etc. It is important to note that India is also the largest consumer of tea in the world. So, the trend of cultivating more varieties and blends is always on the rise and efforts should be made to bring more area under cultivation. Ensuring proper quality and post-harvest management can help the tea industry perform better.
Tea farming project report – plant and leaf properties
The tea is also a flowering plant variety from the Theaceae family. The tea plant, when left in the wild, can grow and develop into a bowl-shaped canopy. The bark of the plant is rough and gray in color. The tea plant can reach a maximum height of 9 m, but for commercial cultivation, they are pruned to 2 m approximately. The leaves of the plant are dark green in color with serrated edges and a pointed tip. The shape of the leaves is oval and they are arranged alternately. The length of the tea leaf is around 5-10 cm and they look hairy on the underside. The flowers of the plant are white and they grow in clusters. Each flower has a diameter of 4 cm with 5 sepals and 5 or 9 petals. The flowers of this plant are hermaphrodite and are generally pollinated by bees.
- The leaves of tea contain 3% caffeine and the astringent taste of tea is due to the presence of 30 to 40% polyphenol compounds.
- Just like caffeine, tea leaves also contain stimulants like theobromine, theophylline etc. and xanthines.
- Atmospheric pollution has resulted in the presence of fluoride and aluminum in tea leaves. These elements are mostly found in older leaves.
- The leaves contain amino acids like theanine, which gives brothiness to the tea.
- They contain enzymes like polyphenol oxidase and peroxidase responsible for the browning of the leaves.
- They contain pigments, which give colour to the leaf. When oxidized the green color of the leaf changes to black due to change in chlorophyll pigment into pheophytins.
- There are also some volatile substances found in tea leaves responsible for flavor and aroma.
Tea farming project report – cultivars
Species that produce tea are C. assamica and C. sinensis generally known as the Assam type and China type respectively. The tea scientific department, UPASI and research institutes have developed some clones to be used for cultivation in the South Indian region. They are named as jayaram, Sundaram, Golconda, athrey, Pandian etc. some exclusive varieties of tea grown in India are named after the places where they are grown such as:
- It has been already given the GI tag in India, hence protected
- Production is around 10,000 tonnes each year
- The flavor is musky
- Plucking process is slow and time-consuming
- Tea here is grown in the plains
- Deep amber coloured liquor with a strong, brisk and malty taste
- The second flush has a typical taste and bright liquor colour
- This is also registered for the GI tag in India
Dooars and Terai tea
- The two regions together produce 226 million kgs of tea
- Dooars tea is black, heavy and has good volume
- The first flush of Dooars tea is bright and has a good fragrance, whereas the second flush is brisk
- Tea from Terai is spicy and slightly sweet
- Organic tea plantations are found here
- Most famous for black and green tea cultivation
- Exquisite flavor of tea
- Exceptional flavour and fragrance
- Golden tallow colour liquor
- Creamy taste
- Registered for the geographical indication tag in India
- 92 million kgs of this tea are produced each year.
- Liquor is golden saffron in colour
- Strong flavour with high tone fragrance
- Produces earthy reddish liquor
- Medium toned and fragrance is clean
- Has golden ochre liquor with sufficient briskness and body
- Simple in fragrance and medium toned
- Production is around 5 million kgs each year
- The tea has a golden yellow liquor with a strong body and refreshing briskness.
- The fragrance is clean and medium toned
- Cultivated over 8000 acres of land
- A medium fragrance with reddish liquor and yellow tinge
Tea farming project report – soil and climatic requirements
Tea can be grown in a variety of soil conditions, but the most suitable soil should be slightly acidic with no calcium content. Tea plantations are intolerant to water stagnation; therefore the soil should have sub-layers with the good percolation ability. Soft and light loamy soil with good iron content is desirable for tea cultivation. The pH of the soil for tea cultivation should be in the range of 4.5 to 5. To avoid soil erosion, the tea shrubs are planted along the lines of the contours.
The ideal temperature range for tea cultivation is 20 to 27˚C and rainfall needed is around 125 to 150 cm annually. The humidity of the plantation area is expected to be 80%. Too dry weather conditions are not suitable for tea. Tea can be grown in the plains or at altitudes of 600 to 2200 m above mean sea level.
Tea farming project report – propagation methods
Propagation can either be done by seeds or by cuttings. Seeds are obtained from the fruit and are soaked in water to check the heaviness; the seeds which sink to the bottom are used for sowing. Germination of the seed takes place after 20 to 30 days and then it is carefully put into polythene sleeves and used as a planting material after 9 months.
Cuttings are initially grown in a nursery and it is estimated that to grow 1.25 lakh cuttings, 0.15 hectares of nursery space is required. The nursery area should have 67% shade for growing these cuttings. Pruning the mother bushes induces juvenile shoots in them. 3 cm of these juvenile shoots with a healthy mother leaf and active axillary bud are collected from the parent plant; these are then planted in polythene bags filled with planting soil and sand mixture in the ratio 3:1. The planting mixture should also contain red subsoil and sand mixture in the ratio 1:1 at the bottom. The cuttings should be planted in such a way that the petiole must not touch the soil and light watering should be done. The bags are covered with polythene sheets to preserve moisture. The process of callusing starts within 4 to 6 weeks and it develops roots in 10 to 12 weeks. The shade is gradually removed when 80% rooting is observed so that the plants get to harden. These plants are left in the nursery for 6 to 8 months before transplanting them into the main area.
Tea farming project report – land preparation and planting
The land must be thoroughly cleared of existing growth or unwanted plants and substances. Deep forking the land to a depth of 18 to 24 inches helps remove old roots and stones. The land should be levelled following which lateral and leader drains are made to prevent soil erosion.
Pits of dimensions 30 x 30 x 45 cm are dug and planting material which is 12 to 15 months old is selected for planting. The polythene sleeves should be carefully removed so as not to damage the roots. After planting into the pit the soil should be gently pressed. Planting is generally done during June-July or September-October. There are three different methods of planting in tea. They are:
Up and down system
- The spacing between plants is 1.2 x 1.2 m
- of plants accommodated in 1 hectare of land is 6,800
Single hedge system
- The spacing between the plants is 1.2 x 0.75 m
- Can accommodate 10,800 plants/ hectare
Double hedge system
- Spacing between the plants is 1.35 x 0.75 x 0.75
- Can accommodate 13,200 plants/hectare
Tea farming project report – irrigation requirements
Tea is generally cultivated in areas with adequate rainfall both in the monsoon and winter seasons. So, extra irrigation is not required in these conditions. Subsoil irrigation is given to young plants during the summer and places which are in the rain shadow region or have scanty rainfall predictions, 2 or 3 irrigation cycles should be provided to the tea farms.
Tea farming project report – manure and fertilizer requirements
Though manure is supplied at the nursery stage, additional manuring should be done two months after transplanting the plants onto the main area. 35 parts of ammonium phosphate, 15 parts of potassium sulphate and magnesium sulphate and 15 parts of zinc sulfate are dissolved in 10 liters of water and applied to the plants. This should be repeated every 15 days. The above soluble mixture is sufficient for 900 plants approximately.
Nitrogen is supplied in the form of ammonium sulphate in March-April, urea in May-June and calcium ammonium nitrate in November-December. It is applied along with potassium in the ratio of 2:3 for pruned tea farms. There should be a minimum interval of 3 to 4 weeks after the first application. Phosphorous fertilizer is supplied to farms having low yields and this is done in alternate years. The quantity of phosphorous applied depends on the yield performance of the tea farm. Micronutrients can be supplied to the tea plantation area in case of deficiency, which is characterized by reduced leaf size, the formation of more shoots etc.
When tea grows on hills, there is a possibility of the soil base to get leached due to heavy rain thereby disturbing the pH of the soil. This can be corrected by adding lime in the form of calcium carbonate or dolomitic lime.
Tea farming project report – intercultural practices
Weed control increases the productivity of the farm. Manual weeding is done when the tea plants are young. As the plants grow, a proper choice of herbicides can help control the weeds.
Planting of shade trees is an essential practice in tea plantations because tea shrubs require shade in the initial years of growth. Two types of shade trees are grown along with tea plants, i.e. the temporary shade trees and permanent shade trees. Temporary shade trees serve the tea plants during the first 2 or 3 years and then they are removed. Meanwhile, the permanent shade trees establish themselves in the farm.
Mulching the base of the plant with water hyacinth, citronella etc. is important to retain soil moisture, prevent erosion, control weeds and increase the organic content in the soil.
Training the tea bush after planting increases its productivity. It involves many operations like centering, tipping, and pruning. Cutting the main stem by leaving only 8 or 10 leaves after 3 to 5 months of planting is called ‘centering’. Removing the leaves along with the bud is called ‘tipping’ and first tipping is done at a height of 35 cm and the next one is done at 60 cm from the base level. ‘Pruning’ is the removal of all the unnecessary vegetative growth of the plants. 5 different types of pruning are observed in tea plantations such as:
- Cutting the entire bush to 30 cm of base level is called rejuvenation pruning.
- Removing the leaves and stems up to 45 cm from the base level to facilitate the proper spread and growth is called hard pruning.
- Helping the bush grow to a specified height and stimulate new wood at a level of 60 cm from the base is called medium pruning.
- Pruning to a height of 65 cm above the ground level for convenient picking is called light pruning.
- Removing 5 to 8 cm of the new growth on the tea shrub is termed as skiffing.
To protect the tea plantation from stray animals, fencing is done during the initial years of planting. Barbed wire fencing with wooden posts can be an economical option for fencing.
Tea farming project report – pest and disease management
Pests commonly infesting the tea plantations are scales, phassus borer, aphids, red spider mite, pink mite, scarlet mite, thrips, nematodes, and tea mosquito bug. Proper choice of insecticides and farm management techniques can control these pests.
The common diseases occurring in tea plants are blister blight, black root, red root, and brownout. Using healthy cutting and disease resistant varieties can be helpful. Sometimes fumigation the soil with chemicals can remove and control most of the root diseases.
Tea farming project report – harvesting and yield
Generally, picking 2 or 3 leaves along with the bud is the process of harvesting the plants. Harvesting needs extensive labor and this is the factor on which the quality of tea depends. After a bud from the axillary root sprouts, it takes around 60 to 90 days for harvesting. Plucking is done in two ways, hard plucking and light plucking.
When the shoots are plucked up to the mother leaf, then it is called light plucking and is done either in April-June or October-December. 60% of the total crop is plucked with an interval of 7 to 10 days.
When plucking is done beyond the mother leaf, then it is termed as hard plucking. This is usually done during July-September or January-March. The interval between plucking is 12 to 15 days and only 40% of the crop is plucked.
There are many factors which influence the growth and yield of tea such as elevation, planting material, pruning methods, and management. 3000 kgs of processed tea from the leaves is considered a high yield for tea farms.
Tea farming project report – post-harvest management and processing
After the leaves are plucked, they are sent to the processing industry. Processing of tea leaves is done either by an orthodox method or by CTC method. The steps involved in the processing of leaves are common in both methods. They are described below:
Withering – artificially drying the leaves for about 12 to 18 hours to remove the moisture content by spreading them on troughs is called withering.
Rolling – it is done to break the cells within the tea leaves such that they oxidize and produce color to the leaves. The leaves are either rolled using single or multiple rollers for 30 to 40 minutes.
Fermentation – spreading the rolled leaves on aluminum trays or concrete floors with high humidity in the area for about 1 or 2 hours decides the quality of tea.
Drying – passing the fermented tea in thin layers over conveyors into a drier maintained at 250 to 280˚F removes any extra moisture left in the leaves. The drier has two temperatures one for the inlet and the other for an outlet. And the process takes 30 to 40 minutes.
Grading – fiber is removed from the processed tea before grading. Later, the tea is passed through the meshes of different sizes for grading.
Tea farming project report – cost and profit analysis/economics
The cost of investment for cultivating tea in 1 hectare of land is discussed here. These are approximated values and should be taken as a reference only. There may be variations in the values and cost of materials depending on the location on the farm.
Wage rate per man-day: Rs 200.
No of tea plants accommodated in 1 hectare of land: 15556.
The mortality rate is 10%.
Therefore, surviving plants: 14000 approximately.
The cost of the planting material: Rs 7 per piece (price may vary depending on the variety).
Cost of 1 ton of FYM: Rs 1.2.
The average cost of fertilizers per kg is Rs 8.
|Material and labour costs(fixed)
|Investment in Rs
|Land preparation, levelling, and cleaning @ 30 man-days for 3 laborers
|Layout design and marking @ 10 man-days
|Digging pits and filling them with manure and fertilizers @ 933 man-days
20 pits/man-day for digging and 100 pits/man-day for filling
|Cost of manure required is 3 kg/pit
|Cost of fertilizers @ 40 g per plant
|Cost of planting material
|Cost of planting @ 156 man-days (100 plants /day)
|Total fixed costs
|Labor cost for farm maintenance (variable costs)
|Investment in Rs
|Cost of replanting the lost plants @ 16 man-days
|Intercultural activities like weeding hoeing and soil working @ 20 man-days each
|Mulching and manuring the soil @ 15 man-days
|Supply of water through irrigation
|Re-application of fertilizer and manure
|Pruning and tipping
|Plucking of leaves or harvesting @ 20 man-days per each harvest
|Total recurring costs
The number/quantity of tea leaves produced at the end of the 4th year: 2200 kgs.
The sale price of 1 kg of green tea leaves: Rs 17 (average price fixed by the tea board of India).
Income generated from the sale of the green leaf is Rs 37,400.
During the 4th year, harvest doesn’t bring much profit, but the subsequent year when the yield increases to 3700 kgs. Then profits start coming in through the sale of green leaf.
Selling 3700 kgs @ Rs 17/ kg would bring income: Rs 62,900.
Here the profit can be judged as: (Rs 62,900 – Rs 40,000) = Rs 22,900.
From the above assumptions, the initial investment for tea farming is estimated to be around Rs 4, 32,742. It is important to understand that since harvesting can be done only after the 4th year of planting, profits can also be expected only after a few harvesting cycles.
Tea farming project report – loans and subsidies
Tea board of India under the Ministry of Commerce and Industry has come up with many schemes to favor the tea cultivators and processing units. One can visit the nearest tea board office or their website to list out the exact amount of subsidies provided by the government for each sector.
Read: Coffee Cultivation.