Mr. Son: Using foliar fertilizer for industrial tea plants
(Baonghean)This is the model of using BIO-PLAN and GROW-MORE foliar fertilizers that has been jointly implemented by the Department of Agriculture and Rural Development on a 1 hectare industrial tea unit in Anh Son. The model has shown new effectiveness in investing in intensive tea cultivation.
During the field workshop to evaluate the effectiveness of the model of using foliar fertilizers with BIO-PLAN and GROW-MORE on industrial tea trees in Anh Son district, we had the opportunity to visit the 1-hectare tea hill of Mr. Nguyen Van Viet in Hamlet 1, Phuc Son commune, a tea growing household chosen as a model site, with experience in effective tea growing. Mr. Viet's tea garden was planted 15 years ago, and up to now, his family has taken care of the tea with manure, inorganic, microorganisms and pesticides. In 2012, he was assisted by the District Agricultural Extension Station in using the above 2 types of products to take care of the tea.
The Department of Agriculture and Rural Development verified the effectiveness of the tea model using 2 products at Mr. Viet's household in Hamlet 1, Phuc Son, Anh Son.
According to Mr. Nguyen Van Viet, the foliar fertilization model using 2 products BIO-PLAN and GROW-MORE was implemented for 6 months (from March 2012). The investment level, land scale, implementation location, implementation time and amount of inorganic fertilizer used between the model and the control were the same. On 1 hectare, 850 kg of nitrogen, 1,200 kg of phosphate, 600 kg of potassium were applied. In particular, 2 additional types of fertilizer were used for 1 hectare of the model: foliar, stem, branch, root, and soil. To implement fertilization of tea with these 2 products, from November to December 2011, Mr. Viet applied organic microbial fertilizer before cutting tea. The family utilized this source of organic fertilizer from raising buffaloes, cows, and pond mud. By March 2012, 5-7 days after the tea pruning process is considered suitable to use 2 preparations by spraying on leaves, roots and branches of tea.
According to the recommendation of the provincial agricultural extension officer, for the BIO - PLAN fertilizer, it must be mixed with clean water at a ratio of 1/1000, sprayed evenly on the trunk, branches, roots, and soil. Farmers use 40ml of BIO -PLAN mixed with 40l of water/1 sao of tea, sprayed once/2 tea harvests (70-80 days/time). This type of fertilizer must not be mixed with pesticides. For the second product, GROW- MORE, use 40g of the product mixed with 40ml of water and sprayed for 1 sao, sprayed evenly on the leaves, tea buds... sprayed 3-4 times/harvest (7-10 days). This type of product can be sprayed with pesticides. Regarding the investment cost for the model tea, it is nearly 28 million VND/ha, the control plot is 21 million VND/ha.
To prove the effectiveness of using foliar fertilizer with the above two preparations, Mr. Viet deployed the use of a harvesting machine on a 12.5m long unit of the control tea plot and the model plot. The result was that the harvested yield of the control tea area reached 7.7 kg, while the model area reached 11.2 kg, an increase of over 42%. According to Mr. Viet, from April until now, his 1 hectare of model tea has been harvested 3 times with an average yield of 3.2 tons/ha, minus costs, the net profit is 38 million VND/ha/year, an increase of 13 million VND/ha/year compared to the control tea. He was excited: "The fungus on the tea is gone, the green moss is dead, the tree roots are clean, the tea leaves are darker green, the buds are more abundant and plump. Especially after the recent drought, the tea trees did not die, the tea buds are still green and fresh".
The two fertilizers BIO-PLAN and GROM-MORE are two advanced products of Huong Nam Joint Stock Company (Hai Phong). These are fertilizers containing nitrogen, phosphorus, potassium and calcium, magnesium, sulfur, boron, iron, zinc, copper, molybdenum, manganese, which have the effect of improving soil, soaking seeds, and treating the environment. Mr. Tran Van Ha - Head of Anh Son Agricultural Extension Station excitedly said: "Our whole district has nearly 2,000 hectares of industrial tea, from Gia Giang tea area, Youth Volunteer Team 1, October Tea Enterprise has applied advanced organic fertilizers with preparations, leaf composting, this is also the basis for tea growers to have the opportunity to easily use 2 foliar fertilizer preparations to continue to increase productivity, output, and income on tea trees".
It is known that currently, the Education Trade Union of Anh Son district is proposing that the Agricultural Extension Station deploy the application of the above two fertilizer products for cadres and teachers in schools to grow clean vegetables and raise chickens safely....
Luong Mai
