Effects of Chemical Fertilizer and Organic Bio Fertilizer on the Growth and Yield of San-Pah-Tawng 1 Sticky Rice

Abstract

The study on the effects of using chemical fertilizers mixed with organic bio fertilizers on the growth and yield of San-Pah-Tawng 1 sticky rice in the research area of Mae Hia Agricultural Research, Demonstrative and Training Center, Faculty of Agriculture, Chiang Mai University, had been conducted from October 2016 to 2017. This study aimed to study the ratio of using chemical fertilizers and organic bio fertilizers suited to the growth and yield of San-Pah-Tawng 1 sticky rice and to investigate the changes of soil properties given with chemical and organic bio fertilizers in the plantation area of San-Pah-Tawng 1 sticky rice. It was also based upon six methods of Randomized Complete Block Design (RCBD) and three repeated trials. The study found that using chemical fertilizer application according to soil analysis and plant demand, resulting in the growth of rice in the number of grains per clump good seed weight 1,000 seeds and seeds yields more. It was found that the experimental set with organic bio fertilizer combined with resulting in the height of tillering tends to increase accordingly. Therefore, it is recommended that agriculture use organic bio fertilizer. During soil preparation and chemical fertilizer application according to soil analysis values which was the best way that can advise farmers to change the method of rice cultivation from farmer methods to use chemical fertilizer methods according to soil analysis and plant needs.