%0 Generic
%A Muhamad , Wahyudi 	
%C UNIVERSITAS LAMPUNG
%D 2024
%F eprints:82872
%I FAKULTAS PERTANIAN
%T PENGARUH KANDUNGAN HARA TANAH DAN KLON TERHADAP  KADAR PATI UBI KAYU (Manihot esculenta Crantz) DI LAMPUNG  TENGAH YANG DIUKUR DENGAN METODE NERACA MASSA
%U http://digilib.unila.ac.id/82872/
%X Provinsi Lampung merupakan sentra produksi ubi kayu terbesar di Indonesia.  Kadar pati sangat mempengaruhi jumlah produksi tepung tapioka yang dihasilkan.  Kadar pati ubi kayu dipengaruhi oleh klon, umur panen, cuaca, dan unsur hara tanah  pada saat pertumbuhan sampai panen. Apabila unsur hara pada suatu lahan  berkurang maka akan mempengaruhi hasil kadar pati pada tanaman ubi kayu,  sehingga terjadi degradasi komponen pati. Tujuan penelitian ini adalah untuk  mengetahui pengaruh kandungan hara tanah terhadap kadar pati ubi kayu dan  mengetahui pengaruh klon ubi kayu yang dibudidayakan pada kondisi tanah yang  berbeda terhadap kadar pati ubi kayu. Penelitian ini dilaksanakan di Laboratorium  Ilmu Tanah, Fakultas Pertanian, Universitas Lampung. Penelitian dilaksanakan  pada Oktober 2023 hingga Januari 2024. Penelitian dilakukan dengan perlakuan 4  jenis klon ubi kayu yaitu Klon Klantang, Daun Sembilan, Kasetsart, dan Garuda.  Setiap klon diambil sebanyak 4 titik sampel ubi kayu dengan umur panen 8 bulan  dan 4 titik sampel tanah di Lampung Tengah. Sampel ubi kayu diambil untuk diukur  kadar pati dengan metode neraca massa, sedangkan sampel tanah diambil untuk  dianalisis pH tanah, nitrogen, fosfor, kalium, dan C-organik tanah. Penelitian ini  menggunakan uji analisis deskriptif dengan standar deviasi untuk mendeskripsikan  hasil pengukuran kadar pati ubi kayu. Uji korelasi dilakukan untuk mengetahui  pengaruh pH dan unsur hara tanah terhadap kadar pati ubi kayu. Hasil korelasi  menunjukkan nitrogen berpengaruh terhadap kadar pati ubi kayu. Berdasarkan  analisis deskriptif dengan standar deviasi kadar pati tertinggi terdapat pada Klon  Kasetsart dan Garuda, sedangkan kadar pati terendah terdapat pada Klon Klantang  dan Daun Sembilan.  Kata kunci : Kadar Pati, Neraca Massa, Nutrisi Tanah, Singkong  Lampung Province is the largest cassava production center in Indonesia. Starch  content greatly influences the amount of tapioca flour produced. Cassava starch  levels are influenced by clone, harvest age, weather and soil nutrients from growth  to harvest. If nutrients in a land are reduced, it will affect the starch content of  cassava plants, resulting in degradation of the starch component. The aim of this  research was to determine the effect of soil nutrient content on cassava starch levels  and to determine the effect of cassava clones cultivated in different soil conditions  on cassava starch levels. This research was carried out at the Soil Science  Laboratory, Faculty of Agriculture, University of Lampung. The research was  conducted from October 2023 to January 2024. The research conducted by 4 types  of cassava clones, namely Klantang, Daun Sembilan, Kasetsart and Garuda. Each  clone was taken from 4 cassava sample points with a planting age of 8 months and  4 soil sample points in Central Lampung. Cassava samples were taken to measure  starch content using the mass balance method, while soil samples were taken to  analyze soil pH, nitrogen, phosphorus, potassium and soil organic carbon. This  research used a descriptive analysis test with standard deviation to describe the  results of measuring cassava starch content. The correlation test was carried out  to determine the effect of pH and soil nutrients on cassava starch levels. The  correlation results showed that nitrogen had an effect on cassava starch content.  Based on descriptive analysis, the highest of starch content was found in Clones  Kasetsart and Garuda, while the lowest starch content was found in Clones  Klantang and Daun Sembilan.  Keywords: Cassava, Mass Balance, Soil Nutrients, Starch Content.