Growth and productivity responses to the utilization of superior rice varieties and bio-silica application in rainfed land

Abstract

This research aimed to understand response of growth and rice productivity to the utilization of superior rice varieties and the application of biosilica fertilizer on rainfed land at different planting season. The study employed split plot design with three superior varieties of rice as main plot treatment and biosilica application as sub-plot. The growth and rice productivity were observed during dry season and rainy season. The utilization of superior rice varieties was only affected on number of total grains, 1000 grains weight and productivity at dry season meanwhile it affected the variables observed at rainy season. Application of biosilica fertilizer did not affect plant height, number of empty and total grains at dry season meanwhile it affected the variables observed at rainy season. Rice productivities were significantly different in both factors. Result showed that most of variables values obtained with biosilica application were higher. Biosilica fertilizer was able to increase productivity up to 1.08 tons/ha from 6.48 tons/ha to 7.56 tons/ha at dry season and up to 1.92 tons/ha from 8.7 tons/ha to 10.62 ton/ha at rainy season. This result indicated that utilization of superior rice varieties and biosilica fertilizer is recommended to increase rice productivity on rainfed land.

Soil fertility management of rainfed rice fields in Bengkulu Province, Indonesia

“…Balanced fertilization can increase rice yield from 1.8-3.5 t ha -1 to 5.0-5.8 t ha -1 [9]. The most profitable fertilizer recommendation in Fogera, Northwest Ethiopia is 7.5 t ha -1 of manure combined with 120 kg N ha -1 and 100 kg P2O5 ha -1 [6].…”

“…Rainfed rice field as sub-optimal land, faces many problems, particularly soil fertility, climate change, drought and rapid weed growth [6], loss of organic matter, physical degradation of soil, soil erosion and sedimentation, water scarcity and pollution [7]. Soil fertility of rainfed land usually classified as low because of low levels of nitrogen and potassium, moderate level of phosphorus availability and Cation Exchange Capacity.…”

The effectiveness of biosilica and liquid organic fertilizer application on growth and yields of lowland rice

“…IOP Publishing doi:10.1088/1755-1315/1172/1/012008 2 One element in agricultural soils that is often neglected, especially in rice fields, is Silica (Si). Si is beneficial for increasing and maintaining rice productivity [4]. It is also essential for wheat varieties development that is tolerant to drought with high potential yield [5].…”

“…Based on the research report, the Si content in rice husks is relatively high at 78.3-94.6% [9]. A study indicated that 1 l/ha of biosilica increased rice productivity by 1.08 tons/ha (from 6.48 to 7.56 tons/ha) [4].…”

Morphology, Extraction Yield, and Properties of Biogenic Silica Nanoparticles from Indonesian Rice Husk as Influenced by Solvent Type and Aging Time

“…RH contains 15-20% naturally occurring (biogenic) silica [3], [4]. Due to its excellent physical and chemical properties, silica is widely used for various applications, such as bone tissue engineering [5], drug delivery [6], rubber compound [7], battery [8], tanning agent [9], solid catalyst [10], and fertilizer [11]. For this reason, identification, extraction, and characterization of biogenic IOP Publishing doi:10.1088/1755-1315/1024/1/012076 2 silica particles from rice husk are important since they can be used as an excellent substitute for silica from non-renewable sources or synthetic processes.…”