Effect of Organic Fertilizer on Growth and Yield Components in Rice (Oryza sativa L.)

Abstract

In order to study the effect of organic fertilizer on growth and yield components in rice, an experiment was carried out in 2008 and 2009, in randomized block design based on 4 replications. The chicken manure, cow manure and paddy rice were mixed together in 1:1:0.5 ratio to from organic fertilizer. The treatments of organic fertilizer were given in 5 levels (0.5, 1.0, 1.5, 2.0 and 2.5 ton/ha). At one level organic fertilizer 1.5 ton/ha was mixed with inorganic fertilizers (N-50, P-25, K-25 kg / ha) and recommended dose of inorganic fertilizer-NPK (N=100, P=50, K=50 kg/ha) was used as check. The plants without treatments were served as control. Grain yield and its components were significantly increased in all the treatments over control. The maximum grain yield in 2008 (4335.88 kg/ha) was noted in plants treated with 2 ton/ha organic fertilizer and it was (4662.71 kg/ha) for 2009 for plant treated with combination of chemical fertilizer + 1.5 ton/ha organic fertilizer. An increase in the grain yield at the abovementioned treatments was may be due to the increase of 1000-seed weight, panicle number, number of fertile tiller, flag leaf length, number of spikelet, panicle length and decrease number of hollow spikelet per panicle.

Pengaruh Pupuk Organik Berkadar Besi Tinggi Terhadap Pertumbuhan Dan Produksi Padi Sawah

“…yang ditambahkan tanpa pupuk NPK nyata meningkatkan bobot gabah kering dibanding dengan kontrol. Siavoshi et al, (2011) melaporkan bahwa penggunaan pupuk organik sebanyak 2 t.ha -1 berpengaruh nyata terhadap pertumbuhan dan produksi padi.…”

Soil Quality of Kapatagan Watershed, Lanao del Norte

“…These areas require minimum supplementation of nitrogen and totally depend on phosphorus fertilizer for plants to be productive. However, application of nitrogen-based fertilizers requires moderation, because it lowers the pH value and makes the soil more acidic (Siavoshi et al, 2010) …”

Influence of Doses of Mineral Fertilizers on Anatomical Structure of Vegetative Organs of Rice Varieties in Kazakhstan

“…4). Two conducting beams (3) are located on the upper and lower parts of these parenchymal cells (2), and on the sides of the cavities (1) there are 2 relatively large conducting beams (4). When applying fertilizers to rice plants in chlorophyllaceous tissues (N60P90 + N60 kg / ha) and optimally high doses (N60P120 + N120 kg / ha), surrounding the air-bearing cavities (1), 6-8 fine conducting beams (6) , and there are no such conductive beams on the control (without fertilizer) (Figures 4,4A, 4B).…”

“…Together with leaching and erosion losses, fertilizers should be used to ensure the compensation of nutrients depleted from the soil by absorbing the crop [3]. For plants, inorganic fertilizers isolate nutrients into an easily soluble regime in soil solution, and these are instantly available as nutrients [4]. From the variety of rice, the state of the soil depends the consumption of fertilizer [5].…”