The Interactions of Daily Microclimate and Rice Plant Growth by System of Rice Intensification (SRI) Method in Dry-climate Land

DOI

10.2991/absr.k.220305.053How to use a DOI?

Keywords

Microclimate; SRI; dry climate land; mathematical model; crop physiology

Abstract

Indonesia is quite blessed to have a proper climate condition to cultivate rice plants as the demand for rice is becoming one of the highest among the other foodstuffs. Even so, the climate condition in Indonesia quite varies, where some regions are classified as dry climate area and one of them is East Nusa Tenggara Province, more precisely on Sumba Island. A region with a dry climate has its challenge regarding water availability. One of the ways to overcome such difficulty in rice cultivations is by applying the System of Rice Intensification (SRI) method. SRI method is known for its sustainability as this method conserves the water resource of a place but at the same time, this method can increase crop productivity. Furthermore, the SRI method planted rice is still an agricultural process that is sensitive to its environmental conditions, including the climate conditions. Based on that, this research is conducted to analyze the interaction of the daily microclimate on the dry-climate land and the growth of the SRI method planted rice. This paper aims to inspect the fluctuation of the microclimate in the rice field through the planting season and to develop mathematical models on rice tillers and plant height of the rice growth to see their performance. Research is conducted in East Sumba Region, Sumba Island. Researchers use a 0.25 ha area of land and divide it into 3 plots. The first plot uses the SRI method with a 30×30 planting pattern. As for the second plot, researchers apply the SRI method but with the jajar legowo 2:1 planting pattern. The last plot of land use the conventional method as a comparison. The micro-climate data were collected by utilizing six sensors including precipitation, solar radiation, air temperature, relative humidity, and wind speed. Those sensors are connected to the ZL6 Cloud data logger that records those data and uploads them to the cloud storage. Rice tillers and plant height growth are measured every ten days until the rice to be harvested. After that, mathematical models are developed that include rice tiller’s growth model that matches with the second order of exponential polynomial function and plant height’s model that equivalent to the monomolecular function.

Copyright

© 2022 The Authors. Published by Atlantis Press International B.V.

Open Access

This is an open access article under the CC BY-NC license.

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TY  - CONF
AU  - Tobyas S Santosa
AU  - Bayu Dwi Apri Nugroho
AU  - Rose Tirtalistyani
PY  - 2022
DA  - 2022/03/10
TI  - The Interactions of Daily Microclimate and Rice Plant Growth by System of Rice Intensification (SRI) Method in Dry-climate Land
BT  - Proceedings of the 2nd International Conference on Smart and Innovative Agriculture (ICoSIA 2021)
PB  - Atlantis Press
SP  - 342
EP  - 349
SN  - 2468-5747
UR  - https://doi.org/10.2991/absr.k.220305.053
DO  - 10.2991/absr.k.220305.053
ID  - Santosa2022
ER  -