Strategi Optimalisasi Pupuk NPK 16-16-16 untuk Meningkatkan Produksi Benih Tiga Varietas Alpukat dengan Teknik Sambung Pucuk
Strategy of Optimization of NPK Fertilizer 16-16-16 to Improve Seed Production of Three Avocado Varieties Using the Grafting Technique
DOI:
https://doi.org/10.30605/perbal.v13i2.5910Abstract
Pemupukan pada benih alpukat di Kabupaten Kulon Progo belum memperhatikan kebutuhan dari setiap varietas yang digunakan. Penelitian ini bertujuan untuk mengetahui dosis pupuk yang sesuai kebutuhan pada beberapa varietas alpukat yakni varietas Miki, Kendil dan Mega Gagauan sehingga diharapkan mampu meningkatkan produksi benih alpukat. Metode penelitian menggunakan Rancangan Acak Kelompok Faktorial (RAKF) dengan 2 faktor yaitu varietas alpukat yang terdiri dari 3 taraf (VA1=Miki, VA2=Kendil dan VA3=Mega gaguan) dan dosis pupuk NPK 16:16:16 yang terdiri dari 5 taraf (DP0=0 g/tanaman, DP1= 1 g/tanaman, DP2= 2 g/tanaman, DP3= 3 g/tanaman, DP4=4 g/tanaman) yang diulang sebanyak 3 kali, sehingga total terdapat 45 unit percobaan. Hasil penelitian menunjukkan bahwa penggunaan pupuk NPK secara optimal dapat meningkatkan pertumbuhan diameter batang pada kombinasi perlakuan VA1DP0 (Miki+NPK 0 g/tanaman), VA2DP0 (Kendil+NPK 0 g/tanaman), dan VA3DP2 (Mega Gaguan+NPK 2 g/tanaman). Kemudian, tinggi batang atas dan jumlah daun pada kombinasi perlakuan V1DP2 (Miki+NPK 2 g/tanaman), V3DP3 (Mega Gaguan+NPK 3 g/tanaman), dan V2DP0 (Kendil+ NPK 0 g/tanaman). Selanjutnya, volume akar dan panjang akar pada kombinasi perlakuan VA1DP0 (Miki+NPK 0 g/tanaman), VA2DP3 (Kendil+NPK 3 g/tanaman), dan VA3DP3 (Mega Gaguan+NPK 3 g/tanaman).
The fertilization of avocado seedlings in Kulon Progo has not yet taken into account the specific needs of each variety used. This study aims to determine the optimal fertilizer dosage for several avocado varieties, namely Miki, Kendil, and Mega Gagauan, with the expectation of enhancing avocado seedling production. The research method employed a Factorial Randomized Block Design (FRBD) with two factors: avocado varieties consisting of three levels (VA1 = Miki, VA2 = Kendil, and VA3 = Mega Gagauan) and NPK fertilizer doses of 16:16:16 consisting of five levels (DP0 = 0 g/plant, DP1 = 1 g/plant, DP2 = 2 g/plant, DP3 = 3 g/ plant, DP4 = 4 g/plant), repeated three times, resulting in a total of 45 experimental units. The results indicate that the optimal use of NPK fertilizer can enhance the growth of stem diameter in the combinations of treatments VA1DP0 (Miki+NPK 0 g/plant), VA2DP0 (Kendil+NPK 0 g/plant), and VA3DP2 (Mega Gagauan+NPK 2 g/plant). Furthermore, the height of the upper stem and the number of leaves were improved in the combinations of treatments V1DP2 (Miki+NPK 2 g/plant), V3DP3 (Mega Gagauan+NPK 3 g/plant), and V2DP0 (Kendil+NPK 0 g/ plant). Additionally, root volume and root length were positively affected by the combinations of treatments VA1DP0 (Miki+NPK 0 g/plant), VA2DP3 (Kendil+NPK 3 g/plant), and VA3DP3 (Mega Gagauan+NPK 3 g/plant).
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