Agro Bali: Agricultural Journal

9

Authors: I Putu Agus Hendra Wibawa

Plant maintenance and development cannot be avoided from pests and diseases. Losses due to pest and disease attacks encourage various control efforts. So far, efforts to control pests and diseases still rely on the use of synthetic pesticides. The use of synthetic pesticides can cause problems for humans and the environment. Along with increasing public awareness of healthy lifestyles, resulting in increased demand for vegetable and fruit products that are free of synthetic pesticide residues. One alternative pest control that can be done is by using vegetable pesticides. Pestior (organic pesticides) is a trademark of vegetable pesticides which was developed in Bali Botanic Garden, made from natural ingredients so that it does not pollute the environment and is safe for humans because the active ingredients are biodegradable. This study aims to determine the effectiveness of the Pestior in controlling pests in Broccoli plants, compared to other vegetable pesticides commonly used by farmers in Bedugul, Bali. The results showed that there were significant differences in the number of pest bites between treatment with one another. The most bite experienced by the treatment of Pestior dose of 100 ml / L water, was significantly different from the treatment of Bumbu Bali with the second largest number of bites. The lowest number of bites experienced by Pestior 200 ml / L water dose which was not significantly different from Turex treatment. This is thought to occur because the dose of the active ingredient found in the Pestior dose of 200 ml / L of water can prevent bites or make the pest not tasteful for eating it because of the effects of poisons on its stomach

10

Authors: Jhon Hardy Purba, Putu Sri Wahyuni, dan I Gede Suarnaya

The purpose of this research was to determine the effect of the section position of sticky eye source and Atonik concentration on the growth of orange seedlings of the Tejakula tangerine variety. This research was carried out at the Horticulture Main Seed Center in Sukasada Village, Sukasada District, Buleleng Regency, with a height of + 100 m above sea level, from August to September 2017. The experimental design used a factorial randomized block design (RBD) consisting of 2 factors, namely the first factor is the section position of the stick source (P) with 3 levels, namely the end of the stick source branch (Pu); the middle part of the eye source branch (Pt); and the base of the eye patch source (Pp). The second factor is the concentration of Atonik (A) with 4 levels, namely without Atonic treatment (control) (A0); Atonik 0.25 ml.l-¹ solution (A1); Atonik 0.50 ml.l-¹ solution (A2); and Atonik 0.75 ml.l-¹ solution (A3). The results of the analysis of the various treatment influences on the observed variables showed that the position of the source eye paste only had a significant effect (p <0.05) on the length of the stem shoots. The treatment of Atonik concentration has a very significant effect (p <0.01) on the percentage of live grafting, the age of stem shoots appears, the length of the stem shoots, the number of leaves of the upper stem, and the diameter of the stem shoots. The administration of Atonik concentration had a significant effect (p <0.05) on the number of leaves, oven dry weight of the upper stem leaves, and oven dry weight shoots up the stem. The relationship between Atonik concentration (X) and oven stem shoot dry weight per plant (Ŷ) shows a quadratic relationship with the equation, namely Ŷ = -2,6667x2 + 2,48x + 1,8978 with a coefficient of determination (R2) = 0,8787 ; so that Xopt = 0.46 ml.l-1 obtained Solution and axmax = 2.47 g. The combination of treatment of the position of the attachment source book with Atonik concentration has no significant effect on all observed variables.

10

Authors: Putu Sri Wahyuni, Nyoman Srilaba, Emy Alberthina Rumtily

The purpose of this study was to determine the effect of several rice paddy varieties, the effect of planting density and their interaction on the growth and yield of rice. This research was conducted in September - December 2011 in the rice fields of Subak Anturan, Anturan Village, Buleleng Subdistrict, at an altitude of ± 3m above sea level. This study used a split plot desgn based on a randomized block design (RBD) consisting of two factors. The main factor is the variety factor which consists of three factors, namely the Ciherang variety, the Inpari 3 variety and the Inpari 10 variety. An additional factor is the legowo planting factor consisting of four levels, namely how to plant a 20 x 20 cm tile population of 250,000 per hectare, how to grow legowo 2 : 1 population 166,660 per hectare, how to plant legowo 2: 1 population 250,000 per hectare, and how to plant legowo 2: 1 population 333,333 per hectare .. Both of these factors were combined so that there were 12 combination treatments. Each combination treatment was repeated three times, so there were 36 treatment units. The effect of the types of rice varieties showed that the Ciherang variety tended to yield grain content of 14% per hectare heavier, ie 6.81 tons. In Inpari 10 and Inpari 3 varieties give yields of grain moisture content of 14% per hectare, which is 6.16 tons and 6.17 tons or lower 9.54% and 6.17% compared to the results in the Ciherang variety. Jajar legowo 2: 1 planting with a population of 333,333 clumps per hectare was evidently yielding grain content of 14% per hectare which was heavier, ie 7.11 tons, or 7.24% more weight compared to the yield of 14% moisture content per hectare achieved in a population of 250,000 clumps per hectare of planting trees. The interaction between the types of rice varieties and planting density had no significant effect on all observed variables.