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Tips Menanam Ubi Jalar dengan Sistem Terpal

Tips Menanam Ubi Jalar dengan Sistem Terpal - Ubi jalar (Ipomoea batatas) merupakan salah satu tanaman pangan yang digemari masyarakat Indonesia karena rasanya manis, kandungan gizi tinggi, serta mudah dibudidayakan. Selain sebagai sumber karbohidrat, ubi jalar juga kaya serat, vitamin A, vitamin C, dan antioksidan.

Salah satu teknik inovatif yang kini banyak digunakan petani maupun penghobi tanaman adalah menanam ubi jalar dengan sistem terpal. Metode ini dinilai lebih efisien karena meminimalkan pertumbuhan gulma, menjaga kelembapan tanah, serta mempercepat panen.

Keunggulan Sistem Terpal dalam Budidaya Ubi Jalar

  • Mudah dan Praktis

Sistem ini cocok untuk lahan sempit atau pekarangan rumah karena tidak memerlukan tanah yang luas.

  • Mengurangi Gulma

Terpal mencegah gulma tumbuh di sekitar tanaman sehingga nutrisi tanah lebih optimal terserap oleh ubi jalar.

  • Menjaga Kelembapan Tanah

Terpal membantu mempertahankan kelembapan, sehingga ubi jalar tidak cepat kering meskipun di musim kemarau.

  • Akar dan Umbi Tumbuh Maksimal

Media tanam dalam sistem terpal lebih terkontrol, sehingga pembentukan umbi lebih seragam dan produktif.

  • Ramah Lingkungan

Penggunaan terpal mengurangi kebutuhan herbisida karena gulma dapat ditekan secara alami.


Langkah-Langkah Menanam Ubi Jalar dengan Sistem Terpal

  • Penanaman Stek

Tancapkan stek batang ubi jalar ke lubang terpal dengan sudut miring 45°.

Sisakan 2–3 ruas batang di atas permukaan tanah.

  • Penyiraman

Siram tanaman setiap pagi atau sore, terutama 2 minggu pertama setelah tanam agar akar cepat tumbuh.

  • Pemupukan Susulan

Umur 3–4 minggu: berikan pupuk NPK atau pupuk cair organik.

Umur 6–8 minggu: tambahkan pupuk kalium untuk mempercepat pembentukan umbi.

  • Pemangkasan

Pangkas batang atau daun yang terlalu rimbun agar energi tanaman terfokus pada pembentukan umbi.

  • Pengendalian Hama dan Penyakit

Hama utama: ulat daun, kumbang penggerek batang.

Penyakit: busuk batang dan bercak daun.

Gunakan pestisida nabati atau agen hayati untuk pengendalian ramah lingkungan.

Masa Panen Ubi Jalar Sistem Terpal

  • Ubi jalar dapat dipanen pada umur 3,5–4,5 bulan tergantung varietasnya.
  • Ciri-ciri siap panen: daun mulai menguning, batang mengering, dan umbi terlihat membesar di sekitar lubang terpal.
  • Panen dilakukan dengan hati-hati menggunakan garpu atau cangkul agar umbi tidak rusak.

Tips Tambahan agar Panen Maksimal

  • Pilih varietas ubi jalar sesuai selera pasar (misalnya ubi jalar Cilembu yang terkenal manis).
  • Lakukan rotasi tanaman untuk mencegah penumpukan penyakit tanah.
  • Jaga kebersihan area tanam agar hama tidak mudah berkembang biak.
  • Simpan hasil panen di tempat kering dan sejuk untuk menjaga kualitas umbi.

Kesimpulan

Menanam ubi jalar dengan sistem terpal adalah teknik budidaya modern yang efektif, efisien, dan ramah lingkungan. Selain meningkatkan produktivitas umbi, metode ini juga memudahkan perawatan dan mengurangi risiko serangan gulma.

Bagi petani maupun masyarakat yang ingin memanfaatkan lahan terbatas, sistem terpal bisa menjadi solusi tepat untuk menghasilkan ubi jalar berkualitas tinggi dengan biaya relatif rendah. Dengan penerapan yang baik, metode ini mampu mendukung ketahanan pangan sekaligus meningkatkan pendapatan petani.

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