Lubang Resapan Biopori untuk Meningkatkan Kapasitas Penyimpanan Air di Daerah Perakaran Jeruk Keprok (Citrus reticulata)

Titistyas Gusti Aji, nFN Sutopo, Norry Eka Palupi

Abstract


[Biopore Infiltration Holes to Increase Water Holding Capacity in Rhizosphere of Mandarin (Citrus reticulata)]

Lubang Resapan Biopori (LRB) dan penambahan bahan organik ke dalam LRB dapat memperbaiki sifat fisik, kimia, dan biologi tanah pada jangka panjang. Tujuan penelitian ini adalah mempelajari pengaruh jumlah LRB dan jenis bahan organik pengisi LRB terhadap kapasitas penyimpanan air di daerah perakaran tanaman jeruk keprok dewasa di lahan kering dan pengaruhnya terhadap kualitas buah. Penelitian disusun berdasarkan Rancangan Acak Kelompok dengan faktor yang diujikan adalah kombinasi jumlah LRB dan bahan pengisi LRB. Hasil percobaan menunjukkan bahwa perlakuan jumlah LRB, baik 4, 5, maupun 6 lubang dan bahan pengisi baik cocopeat maupun zeolit meningkatkan lengas tanah di daerah perakaran tanaman jeruk pada bulan kering. Penambahan cocopeat, zeolit, atau pupuk kandang ke dalam LRB meningkatkan kandungan jus. Perlakuan bahan pengisi serasah pada LRB dan tanpa LRB meningkatkan kandungan padatan terlarut total (PTT), sedangkan penambahan zeolit dan serasah serta perlakuan tanpa LRB meningkatkan kandungan asam tertitrasi total (ATT). Kadar air pada daerah perakaran yang tinggi menyebabkan peningkatan kandungan jus, serta penurunan kandungan PTT dan ATT pada buah jeruk keprok. Pembuatan LRB pada awal musim hujan dapat dilakukan sebagai upaya menabung air hujan sehingga dapat menghindarkan tanaman dari pengaruh negatif defisit air pada musim kering.

Keywords

Air; Buah jeruk keprok; Kualitas; Lubang resapan biopori; Rizosfer 

Abstract

Biopore Infiltration Holes (BIH) and addition of organic matters to the BIH can improve the physical, chemical, and biological properties of the soil. The purpose of this study was to study the effect of BIH and type of BIH filler on water storage capacity in the rhizosphere of mature mandarin plants on dry land and their effect on fruit quality. The study employed a randomized block design with the tested factors of combination of BIH number and BIH filler material. The results showed that either 4, 5 or 6 holes BIH and fillers of both cocopeat and zeolite increased the soil water content in the rhizosphere in the dry months. Adding cocopeat, zeolite, or manure into BIH increased the juice content. Weeds as fillers and treatment without BIH increased the total soluble solids (TSS), while addition of zeolite and weeds and treatment without BIH increased the total acid (TA). High water content in the rhizosphere caused an increase in juice content, but a decrease in TSS and TA. Making BIH at the beginning of rainy season is an effort to save rainwater so that it can prevent plants from the negative influence of water deficit in the dry season.


Keywords


Water; Mandarin; Quality; Biopore infiltration holes; Rhizosphere

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DOI: http://dx.doi.org/10.21082/jhort.v30n1.2020.p41-46

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