The discussion focused on the effect of NPK fertilizer named Phonska on the growth rate of red onion, and the crops production. In this study, the method used is descriptive study lasted three months, from July 2011 to October 2011. The data collection techniques used in the preparation of this paper is a randomized block design (RBD ) and documentation . Based on the results, this study showed that the effect of NPK fertilizer Phonska on onion production are very significant. Phonska influence the number of tillers, because it meet the nutrient needs of plants so the crops able to produce well. For better results in the production of red onions we suggested that the cultivation of onion crop use NPK Phonska because it influence the development of onion growth. We recomended the relevant institutions to distribute NPK fertilizer and applying Phonska on onion crop growth to increase the production.

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The yields of jack bean (Canavalia ensiformis L) varied from 3.9 to 4.6 t/ha, higher than that of soybean. The grain yield of jack beans was low because large number of flowers and pods fell. This research was aimed to increase the plant growth and grain yield for seed, of jack bean through NPK inorganic fertilization and liquid organic fertilizer (POC) sprays. Field research was conducted in May-October 2016 in Purwasari Village, Dramaga, Bogor, followed by seed quality testing at the seed testing laboratory at Bogor Agricultural Institute in December 2016. The treatments consisted of two-factors arranged in a randomized block design. The first factor was dose of NPK inorganic fertilizers (Urea, SP36, KCl), consisted of three levels (0 kg/ha (control), 25: 50: 56.25 kg/ ha, and 50: 100: 112.5 kg/ha). The second factor was liquid organic fertilizer (POC), consisted of two levels (0 ml and 2 ml/l water). Results showed that there was no interaction between NPK fertilizer and liquid organic fertilizer on growth, seed yield, and seed quality. NPK fertilizer alone or liquid organic fertilizer affected on the performance of variables. The highest grain yield was obtained from the treatment of 50 kg urea, 100 kg SP36 and 112.5 kg KCl/ ha, achieving 4.10 t/ha. NPK fertilizer affected the 1,000 seed weight, while application of liquid organic fertilizer did not. The largest seed size was produced from treatment of 50 kg Urea, 100 kg SP36 and 112.5 kg KCl, obtaining 1,414.5 g/1,000 seeds with seed germination of above 85%.

The slender rice bug (Leptocorisa oratorius) is an important pest in Merauke Regency because it can cause a decrease in rice production. Rice plants that are attacked by this pest will produce rice with poor quality, because the color becomes black spots and can calcify. This study aims to determine the level of attack and population density of L. oratorius in the Tanah Miring Merauke District, Papua Province. The method used in this research was purposive sampling. Determination of sampling locations by selecting a paddy field with a minimum size of 1250 m2 on one rice field per variety, then determining 9 sampling points. Sampling of the slender rice bug used an insect net with a diameter of 40 cm which was carried out in 1 double swing at each point measuring 1 x 1 m. The results showed that the average intensity of damage caused by stink bugs in Tanah Miring District was 13.78%. The highest average population density was in Waninggap Miraf village with 46.6 individuals, Yasamulya village, Isanombias village with 44.33 individuals, Yabamaru village with 38.66 individuals, Bersehati village with 38.33 and the lowest was Amunkay village with 30 individuals. While the population average in each observation was highest in the second observation or 55 HST of 46.4 individuals followed by the first observation or 45 HST of 37.4 individuals and the last observation or 65 HST of 29.8 individuals. The most preferred type of variety by the stink bug was Impari 32 (19.76%). Monitoring the development of the slender rice bug population is necessary to prevent the possibility of a population explosion so that it can be controlled earlier.

This study aims to determine the effect of Gandasil D fertilizer on growth and the production of peanut (Arachis hypogaea L.). The research was carried out in Kuprik, District Semangga, start from July until October 2012. The experimental design used was randomized block design with 4 (four) treatment and three replication. The treatment was Gandasil D fertilizer: 1,0 g/l, 1,5 g/l, 2,0 g/l and without Gandasil D fertilizer (control). The results showed that the treatment of Gandasil D fertilizer not showing significant effect on the growth and the production of peanut. But the treatment of D2 (Gandasil D) with dosis 1,5 g/l can increase the production a peanut higher than another treatment, the result is 1,40 kg/plot or 2,91 ton/ha.