Effects on the Plant Growth and Fruit Production of Guava (Psidium guajava) to Different Levels of Manures and Fertilizers in Acid Soil of Malepatan [printed text] / Adhikary, Bishnu H., Author ; P. R. Bhurtyal, Author ; Chiranjibi Adhikary, Author ; B. B. Baniya, Author ; Surya P. Dahal, Author . - 2004.
In: Proc. Of Abstracts, pp 72-73.Fourth National Conference on Science and Technology organized by RONAST held March 23-26, 2004, Kathmandu, Nepal (Full paper 10 p).
Languages : English (eng)

Abstract:

Manurial experiments were conducted on 3 years old guava (Psidium guajava var. Pokhara local) plants in acid soils (4.8 pH) of Agricultural Research Station, Malepatan during the years 2001 to 2003. Six levels of fertilizers (NPK) along with compost were applied toguava trees. The experiment was designed in RCBD and was replicated 4 times. The fertilizers and manures were applied twice by splitting the given doses and were continued for the following two years. The effect of fertilizers and manures on the plant growth and fruit characters were studied. The results revealed that branch and bud length were significantly affected by the levels of manures and fertilizers. Maximum branch length of 74 cm was obtained when the guava trees were fertilized with 390:480: 390 g of N, P2O5 and K2O, applied along with 25 kg compost per tree. Highest bud length increase of 35.46mm was observed when the crop was treated only with 50 kg compost/tree. Non-significant effect on increase in branch girth and in production of new branch numbers was observed. Similarly, non-significant effect onplant height increase and leaf number production was observed, however they were found increased with increasing levels of fertilizer application. Fruit size 9diameter) was significantly increased(27.41 mm) when the crop was fertilized with 390:480:390 g N,P2O5 and K2o plus 25 kg compost per tree along with multiplex spray. Fruit number and fruit length were not affected by the fertilizer and manure levels. The highest fruit yield (10 fruit wt) of 337 g was obtained when the crop was fertilized with 390;480:390 g N, P2O5 and K2O along with 25 kg compost/tree and 2-3 ml of multiplex spray. Non-significant difference was observed between multiplex spray or without spray at the same level of manure and fertilizer application. iT is suggested to apply higher dose of fertilizer (390;480:390 g N, P2O5 and K2O along with 50kg compost/tree) for better guava harvest.