Pengaruh pemupukan dan pemangkasan tanaman terhadap produktivitas daun murbei di kota Tomohon, Sulawesi Utara
Annotatsiya
Mulberry is remain the only important feed determined the productivity of cocoons on silkworm cultivation. Development of hybrid mulberry that contain high nutrition is very important because their nutritional value is the most influences key factor toward the quality and quantity of cocoons and silk. This study aimed to determine the effect of fertilization and trimming on the leaves productivity of three species of mulberry in a demonstration plot in Rurukan village, Tomohon city, North Sulawesi. This study used a completely randomized design with a factorial research design of three species of mulberry leaves (SULI 01, M.cathayana dan M.kanva) with three types of fertilizer (Taikam, Petroganik dan Kandang) to determine the effect of fertilizing. Two species of mulberry (M.cathayana dan M.kanva) with three different trimming heights (30 cm. 45 cm dan 60 cm from the ground) to determine the effect of trimming techniques. The source of mulberry genetic material comes from The Forest Productivity Research and Development Center in Bogor. The parameters measured include diameter growth, height and leaves production. The results showed that in general the fertilization aplication had no effect on leaves productivity in all species of mulberry tested. Application of Taikam fertilizer and manure only affects the growth of diameter and height of mulberry plant. The trimming treatment has an influence on leaves productivity. The highest leaf production resulted by M.kanva (639.61 gr) on high trimming 45 cm, on the other side the highest leaf production of M.cathayana on high trimming 60 cm from the ground (482.40 gr).