ANALYSIS OF GROWTH AND PRODUCTIVITY OF RICE PLANT (ORYZA SATIVA) WITH VARIATION OF GRANTING OF SOLID ORGANIC FERTILIZERS AND AZOLLA PINNATA

• Main Author: Ratnasari, Agnita
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/50209
• Institution: Institut Teknologi Bandung

Rice (Oryza sativa L.) is a crop that produces the main food commodity in Indonesia, namely rice. The increasing need for rice increases with the increase in Indonesia's population. However, rice productivity has decreased. One of the factors that caused the decline in productivity was due to excessive use of chemical fertilizers that damaged the quality of the soil where the cultivation was. The addition of organic fertilizer and nitrogen-fixing vegetation is one solution to improve soil quality, so that the soil is able to provide the nutrients needed by plants, which in turn will affect the productivity of rice plants. This study aims to examine the growth and development of rice plants in terms of vegetative, generative, crop yields, soil productivity and quality in terms of physical, chemical and biological as the effects of variations in the provision of solid organic fertilizer and Azolla pinnata. The treatments given consisted of six treatments, namely 2.5 tons / ha Solid Organic Fertilizer treatment; Solid Organic Fertilizer 5 tons / ha; Solid Organic Fertilizer 7.5 tons / ha; Solid Organic Fertilizer 2.5 tons / ha + Azolla pinnata; Solid Organic Fertilizer 5 tons / ha + Azolla pinnata; 7.5 tons / ha Solid Organic Fertilizer + Azolla pinnata. The results showed the best treatment was the treatment of 7.5 tons / ha Solid Organic Fertilizers + Azolla pinnata with the treatment of rice planting media at the ITB Jatinangor campus. Each treatment was repeated 4 times. The results of the study show that variations in the application of solid organic fertilizer and Azolla pinnata affect plant height, soil quality, rice quality. The best treatment is the treatment of 7.5 tons / ha Solid Organic Fertilizer + Azolla pinnata in terms of the plant height parameter that is 120.34 cm. The highest productivity of rice plants was PA3 treatment with GKP value of 9.98 tons / ha and GKG value of 7.98 tons / ha. Soil quality in physical terms that is in accordance with the conditions needed for rice plants to grow that is dusty clay loam, in terms of chemistry in terms of pre-cultivation practices after which the increase is P2O5 (HCl) 2 of 64.16%; K2O HCl of 89.33%; K-dd; Mg-dd; and base saturation exceeds 100%; Ca-dd of 40.26%; CEC of 68.25%. Soil quality in terms of biology obtained by mushroom growth in the medium with a concentration of 10-4 as much as 104 CFU/ml.