<p><span>Lahan pekarangan dapat menjadi salah satu alternatif sebagai lahan budidaya untuk memenuhi kebutuhan pangan rumah tangga, terutama tanaman sayuran. Tujuan kegiatan pengabdian ini adalah untuk memberikan pengetahuan kepada ibu-ibu anggota Kelompok Wanita Tani (KWT) Dusun Danen, Kelurahan Sumberadi, Kecamatan Mlati, Kabupaten Sleman, Provinsi Daerah Istimewa Yogyakarta tentang: (1) Pemilihan jenis media tanam yang tepat; (2) Kandungan nutrisi dalam sayuran; (3) Tahapan budidaya sayuran dalam <em>polybag</em>; (4) Manajemen kelompok tani; dan (5) Penghematan anggaran belanja rumah tangga dengan adanya budidaya sayuran di pekarangan rumah sendiri. Kegiatan pengabdian ini dilaksanakan pada tanggal 19 Januari 2020 dalam bentuk sosialisasi disertai dengan diskusi/tanya jawab, praktik budidaya dan evaluasi yang dilaksanakan dengan melibatkan 16 peserta. Evaluasi dilakukan tiga minggu setelah kegiatan dengan hasil yang menunjukkan bahwa peserta kegiatan sosialisasi dan penyuluhan telah mengetahui dengan baik kegiatan budidaya tanaman sayuran daun dan buah serta pemeliharaannya. Tanaman selada, paprika, cabai rawit, cabai merah, dan terung yang dibudidayakan telah tumbuh dengan baik hingga berumur 3 minggu setelah tanam (MST) ketika dilakukan evaluasi. Jika pemenuhan kebutuhan sayur rumah tangga dari pekarangan rumah 25%, maka potensi penghematan belanja rumah tangga sekitar Rp 3.000,00 per hari.</span></p>
The state of sugar in Indonesia which is decreasing in terms of production, the imbalance between production and consumption, can occur due to two things, both on-farm and off-farm. Planting in monoculture for a long period of time will cause reduced soil fertility conditions so that sugarcane productivity decreases. Sustainable nutrient management in sugarcane plantations is an effort made to obtain optimal and profitable productivity, while still trying not to damage the environment so that it can be sustainable and its productivity can be maintained in the long term. Several concepts for sustainability have been put forward by many experts, including the use of site-specific fertilizers, maintaining soil fertility by using sugar processing by-products and the use of humic. It is hoped that some of these application methods can maintain sugarcane plantations to be sustainable.
Indonesia is the seventh largest sugar producer in the world. Monoculture sugarcane cultivation has been practiced since the Dutch era, especially in the Entisols, Inceptisols and Vertisols soil orders. The field research with this multilocation design aims to determine the effect of the monoculture sugarcane cultivation period (1–10, 11–20 and 21–30 years) on the growth and yield of sugarcane plants under the three soil orders. Analysis of variance (ANOVA) at a 5% significance and correlation was conducted to determine the effects of soil orders and monoculture period. The results showed that there were significant interactions between monoculture period and soil order on leaf fresh weight, leaf dry weight, root fresh weight, plant height, stalk diameters, number of stalks, leaf area, number of green leaf, root CEC, root length, root surface and root area. There was no interaction between monoculture period and soil order on stalk fresh weight, stalk dry weight, root dry weight, number of nodes. The sucrose content of sugarcane in Entisols at the 1–10 years monoculture period significantly lower (6.03%) compared to 11–20 years period (7.37%) and 21–30 year (7.79%), whereas at the 1–10 years monoculture period in Inceptisols and Vertisols (7.99% and 8.04 %) was significantly higher than that of Entisols (6.03%). Sugarcane productivity at monoculture period 1–10 years in Entisols significantly lowest (49.38 t/ha) compared to Inceptisols (54.82 t/ha) and Vertisols (63.05 t/ha) at the same period, while the 21–30 years period on Vertisols significantly highest (76.18 t/ha) compared to 11–20 years period (68.73 t/ha) and 1–10 years period (63.05 t/ha) in same soil order. These conditions indicate that the effect of long-term monoculture cultivation of sugarcane on the growth and yield of sugarcane varies, depending on the soil order as the grow medium and root parameters have the highest correlation with sugarcane yield. Land management to improve the root area is necessary for optimal plant growth.
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