Combined Effect of Organic Manures and Inorganic Fertilizers on the Growth and Yield of Hybrid Rice (Palethwe-1)

Abstract

We investigated the effect of combining organic and inorganic fertilizers on the growth and yield of hybrid rice (Palethwe-1) in the dry and wet seasons of 2015. Four quantities of inorganic fertilizer were used in the main plot [0%, 50%, 75%, and 100% nitrogen, phosphorus, and potassium (NPK)] based on the recommended amounts of 150 kg N ha ] as part of a split-plot experimental design with three replicates. In both seasons, significant differences in growth parameters including number of tillers hill −1 , soil-plant analysis development (SPAD) values, total dry matter, yield, and yield components were observed in plants supplied with different inorganic fertilizers. The 100% NPK (I 100 ) fertilizer produced the maximum yield but similar yields were achieved in plots supplied with 50% NPK (I 50 ) and 75% NPK (I 75 ). Significant differences in growth and yield parameters were also found in crops supplied with organic manures. Although identical quantities were supplied, O p produced the best growth parameters in both seasons including total dry matter, yield, and yield components. O c also performed well. Combining inorganic and organic fertilizers demonstrated that I 50 together with O p (5 t·ha −1 ) provided similar growth, total dry matter, and yield parameters to I 100 in both seasons. O c (5 t·ha −1 ) plus I 75 also achieved similar yields to I 100 . This study demonstrates that the combined application of inorganic fertilizers and organic manures has the potential to reduce chemical fertilizer usage without decreasing the yield of hybrid rice, and can enhance the growth, yield, and yield components of Palethwe-1.

Effect of Organic and Inorganic Fertilizer on the Growth and Yield Components of Traditional and Improved Rice (Oryza sativa L.) Genotypes in Malaysia

“…The application of organic manure and chemical fertilizers resulted in a considerable increase in panicle length [1]. Similar findings were reported by [39,40].…”

“…Organic manure and chemical fertilizers boosted rice straw yields [48]. These assumptions are supported by [40,49]. Increasing cropping intensity, the use of modern varieties (high-yielding varieties and hybrids), cultivation of high-biomass-potential crops, nutrient leaching, and unbalanced fertilizer application, with no or little addition of organic manure, have resulted in nutrient mining from the soils.…”

Effect of Organic and Inorganic Nutrient Sources on Productivity, Grain Quality of Rice and Soil Health in North-West IGP: A Review

“…Similarly, T 3 and T 5 also increased the NUE, and lower NUE was noted in sole urea fertilizer treatment during both seasons. Moe et al, (2017) observed that there was no statistically significant difference in the number of tillers generated using I 100 compared with 50% NPK (I 50 ) inorganic fertilizer. However, a larger number of tillers were present in rice plants grown using I 100 compared with 0% NPK (I 0 ) fertilizer.…”

Carbon Smart Strategies for Enhanced Food System Resilience Under a Changing Climate

“…Integrated Soil Fertility Management (ISFM) is a soil fertility management practice where organic, inorganic (fertilizer), and improved germplasm are combined and adapted to the local conditions resulting in improved nutrient use efficiency and crop productivity (Vanlauwe et al, 2010;Mugwe et al, 2019;Gram et al, 2020). The combined use of organic and Inorganic fertilizers in ISFM resulted in improved productivity of most crops such as maize (Mahmood et al, 2017), Rice (Moe et al, 2017), Tomatoes (Islam et al, 2017), and Yam (Owusu Danquah et al, 2017. The use of ISFM reduces the inorganic fertilizer requirement whiles improving crop productivity.…”