The right proportion of carbon in high N organic matter source in composting process will result good decomposition process. In this study rabbit manure was composted with different portion of sawdust, and then the chemical properties were evaluated. The compost then applied to reveal the growth response of dwarf elephant grass (Pennisetum purpureum cv. Mott) in terms of plant height, number of leaves, root and shoot dry matter, shoot and shoot ratio, and N content in shoot. The results showed that compost consisted of rabbit manure + sawdust with ratio of 3:1 and 2:2 provided good chemical properties as well as sole rabbit manure compost. Applying compost to Mott grass resulted a good growth response. The study concluded that compost rabbit manure + sawdust with ratio of 3:1 resulted the same growth response with sole rabbit manure compost.

Manure derived from cattle, chickens, and goats can be used as compost and has different nutrient content. The application of manure compost can improve soil’s physical, chemical, and biological properties and thus increase plant growth and productivity. The purpose of this study was to determine the effect of various manure compost (cow, chicken, and goat) on the growth of elephant grass cv Pakchong (Pennisetum purpureum cv. Pakchong). The design used was a completely randomized design with 4 treatments and 5 replications. The treatment is fertilizing using compost, namely P0= without compost, P1=cow manure compost, P2=chicken manure compost, and P3=goat manure compost. The observed variables were plant height, the number of leaves and tiller, and the dry weight of the leaves stem shoots and roots. The results showed that the use of manure compost had a significant effect (P<0.05) on increasing the growth of elephant grass cv. Pakchong. Chicken manure compost produces the best growth of elephant grass cv. Pakchong which is seen from the plant height, the number of leaves and tiller, and the dry weight of the leaves, stems, and shoots.

Ukuran bibit merupakan salah satu cerminan mutu bahan tanaman yang akan menghasilkan produktivitasyang baik jika kebutuhan akan hara untuk pertumbuhannya terpenuhi melalui pemupukan. Penelitian ini bertujuan untuk mengetahui pengaruh ukuran bibit dan pupuk anorganik terhadap pertumbuhan kelor (Moringa oleifera). Penelitian menggunakan rancangan acak lengkap pola faktorial 3x3 dengan 3 ulangan. Faktor pertama adalah ukuran bibit (kecil, sedang dan besar) dan faktor kedua adalah pupuk anorganik (N; N dan P; serta N, P dan K). Ukuran bibit meningkatkan tinggi tanaman pada panen kedua dan jumlah tunas pada panen pertama dipengaruhi oleh ukuran bibit dan penerapan pupuk anorganik pada Moringa oleifera. Sementara itu, tidak terdapat interaksi antara ukuran bibit dan pupuk anorganik terhadap seluruh peubah yang diamati. Disimpulkan bahwa ukuran bibit sedang dan besar dan pemupukan dengan kombinasi lebih dari satu unsur hara (kombinasi N, P dan N, P dan K) menghasilkan pertumbuhan yang terbaik pada Moringa oleifera. Kata kunci: Moringa oleifera, pupuk anorganik, ukuran bibit, pertumbuhan tanaman

This experiment was aimed to reveal the effect of seed physical scarification and various growing mediaon vigor of Moringa oleifera. This study was conducted in greenhouse and consisted of two phases ofexperiment; first was studied the effect of physical scarification on seed germination of M. oleifera and thesecond was studied the effect of seed physical scarification and various sub optimum growing media onvigor of M. oleifera. The germination test was arranged in randomized completely design with 4 treatmentsthat were P0 = non scarification, P1 = one side scarification, P2 = two sides scarification, and P3 = full sidescarification. The variables measured were germination percentage (%) and seedling dry weight (g/plant).The second study was arranged in a factorial randomized completely design with the four treatments ofscarification (P0, P1, P2 and P3) over six growing media (sands, bricks, bricks and sands mixture, bricksand soils mixture, soils and sands mixture, and soils). The variables observed were petioles number, plantheight (cm/plant), and plant dry weight (g/plant). The scarification was significantly affect (P<0.05) thegermination percentage and seedling dry weight. Scarification and growing media also affected the vigorof M. oleifera significantly (P<0.05). Two side seed scarification improve the germination and seedling dryweight instead of control. Combination of scarification in two sides and growing media of soils and sandsmixture given the highest vigor of M. oleifera reflected on petioles number, plant height, and plant dry weight. Keywords: germination, M. oleifera, scarification, sub optimum media, vigor

Storage period is one of the factors which affect the physical and chemical quality of the stored material. This study aimed to determine the effect of storage period on the chemical quality of livestock concentrate biscuits con- taining Indigofera and sengon. Four periods of storage period were arranged in a completely randomized design which was repeated 5 times. The storage period consisted of 0, 7, 14 and 21 days. The chemical qualities observed in- cluded moisture and ash content, crude protein and crude fiber. The results showed that storage period significantly reduced the moisture content of concentrate biscuit, while the ash content, crude protein and crude fiber were not affected by storage period. It was concluded that the concentrate biscuits containing Indigofera and sengon could be stored for up to 21 days with good chemical quality.