Cultivation of cauliflower with bio-slurry and phosphorus fertilizer was done as an effort to improve soil fertility to increase growth and yield of cauliflower. The study was conducted to determine the effect of bio-slurry with phosphorus fertilizer on growth and yield of lowland cauliflower. The experiment was carried out at Agrotechnopark of Jember University screenhouse from February to May 2018. The research method used a Randomized Block Design (RBD) with split plot enviromental design on 3 levels of bio-slurry factor and 4 levels phosphorus factor was repeated 3 times. The first factor was liquid bio-slurry consisting of no bio-slurry; 500 ml bio-slurry / plant; 1000 ml of bio-slurry / plant. The second factor was phosphorus fertilizer (TSP) consisting of 0 g / plant; 1.5 g / plant; 3 g / plant; 9 g / plant. The experimental results showed that the interaction between the bio-slurry dose and phosphorus fertilizer had a significant effect on the yield and quality of the flowers except for the fresh weight of the flower. The treatment of TSP fertilizer affects growth except for chlorophyll content and total leaf area. The bio-slurry treatment can increase the fresh weight of cauliflower.Keywords:cauliflower, bio-slurry and phosphorus

The fertilization management is one strategy to optimize the quantity and quality of rice production. Our study was aimedto investigate the effect of potassium fertilization several agronomical parameters andthe rate of head rice after milling process. The study was conducted from March 2018 to July 2018 in the Agrotechnopark experimental field University of Jember in District of Sukorambi, Jember. Randomized Block Design (RBD) was used with the frequency of potassium chlorice (KCl) fertilization asthe single factor. The conducted potassium treatments were as follows: without KCl fertilization (control), one-time KCl fertilization, two times KCl fertilization, three times KCl fertilization and each fertilization level was conducted by sixrepetitions. The agronomic parameters such as plant height, tiller number, flowering time, rate of productive tillers, grain number per panicle, weight of 1000 grains, and percentage of filled grain were analyzed and percentage of head rice rate was determined as quality parameter. Our results showed that different treatment of potassium did not significantly affect the plant height, tillernumber, flowering time, rate of productive tillers, total grains per panicle, and weight of 1000 grains. On the other hands, the percentage of filled grainand the rate of head rice after milling were significantly increased by potassium fertilization. Compare to the control treatment, three times potassium fertilization resulted 9.24% and 13.83% increase of filled grain and head rice after two times milling, respectively. Our result suggest that potassium fertilization is important for grainquality of Merah Wangi rice variety. Keywords: Merah Wangi, potassium fertilization, growth, physical quality.

Increased public awareness of the importance of the availability of healthy agricultural products, including vegetables, must be supported by cultivation techniques and innovations. Cultivation of mustard greens so far still relies on the use of inorganic fertilizers as an effort to increase crop productivity. The continuous and excessive use of inorganic fertilizers not only has a negative impact on the environment but also health due to the presence of residues of hazardous materials that can be stored in plant tissues. The use of compost as a substitute for fertilizer sources in the cultivation of mustard greens is expected to reduce the negative impacts both on the environment and health. This study aimed to determine the possibility of using compost as a substitute for fertilizer in mustard green cultivation. The research is based on a Completely Randomized Design consisting of five treatments with four replications. The fertilization treatment consisted of: P1:1.4 g Urea+0.9 g SP-36+0.7 g KCl, P2:1.1 g Urea+0.7 g SP-36+0.6 g KCl+ 9 g compost, P3:0.8 g Urea+0.5 g SP-36+0.5 g KCl+18 g compost, P4:0.5 g Urea+0.3 g SP 36+0.4 g KCl +27 g compost, P5:0.2 g Urea+0.1 g SP 36+0.3 g KCl+36 g compost. The data obtained were analyzed using variance and if there were significant differences between the treatments, it was continued with the HSD test at the 5% level. The results showed that compost as a substitute for fertilizer could be applied in the cultivation of mustard greens. The addition of compost as much as 27 g/plant (3 tons/Ha) besides increasing growth is also able to increase the fresh weight of green mustard by 45,6%.