The effectiveness application of compound fertilizer NPK (27%:6%:10%) to increase  tea shoots had been tested in Experimental Garden of Research Institute for Tea and Cinchona Gambung, Bandung, West Java, from January 2006 to March 2007. ExperiÂmental design used was randomized block design with 6 treatments with five replication. The plot sizes were 20 x 20 m = 400 m2/plot. The tea clone tesÂted was GMB 7. The appliÂcation of compound fertilizer NPK (27%:6%:10%) were twice a year (50%-50%) and conventional fertlization were 4 times a year (20%-30%-20%-30%). The composition of treatment was as follows: (A) 500 kg, (B) 600 kg, (C) 700 kg, (D) 800 kg/ha/year, and (E) conventional fertilizer recommended dosage of the Research Institute for Tea and Cinchona Gambung (480 kg urea + 357 kg ZA + 260 kg SP 36 + 300 kg KCl + 278 kg kieserit/ha/year), and (F) control (no fertilizer treatment). Parameters observed were: 1. soil and leaf analysis at before and after treatment, 2. weighting the potential and the yield components each time of plucking, and 3. technoeconomic analysis. The results showed that: statistical analysis of the components as well as potential yield, and nutrient analysis (N, P, K, Mg and Zn) of the mother leaves of GMB 7 clones and the soil demonÂstrated the significantly differences among the treatments of all the various doses of compound fertilizer NPK and conventional fertilizer application to control (no fertilizer treatment). Meanwhile, there were no significantly differences among the result of  the doses of compound fertilizer NPK, to the conventional fertilizer applications. FurtherÂmore, dose of compound fertilizer NPK (27%:6%:10%) for producÂtive tea plant was recommendated at 700 kg/ha rate and was equivalent to 189 kg N/ha/year or 63% of the dose of conventional fertilizer, but could provide equivalent result to conventional fertilizer application, and not only could save the buying cost of conventional fertilizer (urea, ZA, TSP/SP-36, KCl / MOP and kieserit) but also the cost of application cost in the field.
The research aims at providing multiÂfunction both irrigation and fertilizer appliÂcations (fertigation) and calculates the producÂtion of shoots and evaluated plant health during dry season. This research was carried out on Gambung Research Station using clone GMB7. Randomized block design was used in this study with six treatments and four replications. The treatments i.e. a. control (without irrigation, without fertilization); b. without irrigation, ferÂtiÂlization through the soil; c. irrigation 7 mm/day every 3 days (without fertilization); d. irrigation 7 mm/day every 6 days (without fertilization); e. fertigation 7 mm/day every 3 days; and f. fertigation 7 mm/day every 6 days. Observations were made from September-October 2014 with 4 times of plucking. All treatments were significantly different on the yield, number of both pecco and banji. The fertigation treatment using 21 mm of water (7 mm/day every 3 days) showed the highest shoot production of 15,56%. The highest number of pecco shoots and ratio of the number pecco/number of banji in treatment using 21 mm of water (7 mm/day every 3 days) of 32,25%. The highest number of banji found in the control treatment (without irrigation without fertilization) was 74,94%. From this research it can be concluded that the fertigation treatment can give good impact to production maintain and plant health in the dry season.
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