Effect of biofertilizer on growth and yield of carrot (Daucus Carota L.) plants in different latitudes of Lombok Island

Abstract

Carrot is an important sub-tropical vegetable, and in the tropics it is commonly cultivated in high elevated mountainous areas to provide suitable environment (particularly temperature) for the optimum growth and productivity. Availability of suitable cultivation areas in Indonesia is limited while demand for the crop is increased. This research evaluated growth and yield of carrot in warmer temperature of lower land elevations, and examined capability of biofertilizer to increase growth responses and yield of the crop under sub-optimal temperature conditions. The first and second experiments were conducted in medium latitudes of 650 m above sea level (asl) and 550 m asl, while the third experiment was conducted in low land of 170 m asl. The experiments compared growth and yield of carrot plants with biofertilizer and without biofertilizer applications. The growth and yield of carrot were enhancing by biofertilizer application when planted in ca. 650 and 550 m asl. The biofertilizer-treated plants were taller, had a higher number of leaves, higher yield, carrot diameter and sweater than non-treated plants. In low land, however, biofertilizer bio-EXTRIM had no effect on plant growth and yield but the carrots in biofertilizer treated plants were sweeter than non-treated plants.

Pengaruh Aplikasi Beberapa Dosis POC dengan Sistem Irigasi Tetes Terhadap Budidaya Beberapa Jenis Peterseli di Dataran Rendah

“…Berdasarkan data pada Tabel 2 dapat disimpulkan bahwa faktor lingkungan didataran rendah pada negera tropis memberikan batasan tanaman untuk perkembangan daun sehingga membuat pertumbuhan daun terbatas dimana rata-rata suhu di tempat penelitian berkisar antara 24 O C-31 O C dan kelembaban 80%. Terhambatnya pertumbuhan daun pada tanaman dataran tinggi yang dibudidayakan didataran rendah juga terjadi pada tanaman stevia (Azkiyah & Tohari., 2019) dan wortel yang mengalami penurunan jumlah daun yang cukup signifikan ketika dibudidayakan didataran rendah yang disebabkan oleh perbedaan kelembaban relatif pada dataran rendah dengan dataran tinggi (Nikmatullah et al, 2021).…”

Pengaruh Berbagai Jarak Tanam Terhadap Hasil dan Mutu Umbi Tanaman Wortel (Daucus carota L.) di Dataran Rendah

“…Sementara itu, pertambahan jumlah penduduk dan peningkatan kebutuhan masyarakat menyebabkan terjadinya alih fungsi lahan menjadi fungsi lain yaitu sarana umum (jalan, tempat ibadah, sekolah dan sarana kesehatan), kebutuhan parawisata serta rumah sehingga luas lahan pertanian menurun. Beberapa hasil penelitian menunjukkan bahwa beberapa varietas tanaman wortel dapat ditanam di dataran medium dan dataran rendah, dengan teknologi budidaya yang sesuai (Firmasyah et al, 2016;Zawani et al, 2018;Amalia et al, 2019;Sidiq et al, 2020;Nikmatullah et al, 2021a;Nikmatullah et al, 2021b).…”