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All Journal Jurnal Sumberdaya Lahan Jurnal Sumberdaya Lahan Jurnal Tanah dan Iklim
H. Syahbuddin
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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Utilizing National Cropping Calendar Atlas in Copping with Variability and Climate Change RUNTUNUWU, ELEONORA; SYAHBUDDIN, H.
Jurnal Sumberdaya Lahan Vol 5, No 01 (2011): Juli 2011
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Inappropriate cropping season and pattern resulted in the low production of seasonal food crops and the major cause of crop failure. A local wisdom called “Pranatamangsa” previously used to determine cropping time, now often miss due to climate anomaly. Crop growth is much affected by rainfall, solar radiation, and air temperature. The rainfall determines water availability and is essential requirement for crop growth. Planting time and cropping pattern until recently are adjusted to the climate variability and water availability to the crops. Therefore, the cropping calendar contained in this atlas is based on climate variability such as wet (El-Nino), normal, and dry (La-Nina) years. The atlas provides detailed description of planting time and crop rotation in each sub-district for each season in one year based on climate condition. The preparation of cropping calendar, both spatially and tabularly, provides information on cropping alternative for wet, normal or dry years. These alternatives were developed at 1:250 000 scale to be applied as reference in determining planting time and cropping pattern for each region and sub district. Hence, the risks of yield lost or crop failure can be avoided or minimized. Further, the policy and strategy of procurement and distribution of farm inputs particularly fertilizer and seed can be properly formulated. This cropping calendar was arranged through several steps: (1) climate data collection and farmer’s interview, (2) analysis of planting time and mapping, (3) field verification, and (4) refining the delineation of cropping pattern based on the sensitivity level. For a better planning of cropping time and pattern, this cropping calendar was arranged at the scale of 1:250.000 and attached with an information of cropping time and pattern at the sub-district level.
Utilizing National Cropping Calendar Atlas in Copping with Variability and Climate Change ELEONORA RUNTUNUWU; H. SYAHBUDDIN
Jurnal Sumberdaya Lahan Vol 5, No 1 (2011)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v5n1.2011.%p

Abstract

Inappropriate cropping season and pattern resulted in the low production of seasonal food crops and the major cause of crop failure. A local wisdom called “Pranatamangsa” previously used to determine cropping time, now often miss due to climate anomaly. Crop growth is much affected by rainfall, solar radiation, and air temperature. The rainfall determines water availability and is essential requirement for crop growth. Planting time and cropping pattern until recently are adjusted to the climate variability and water availability to the crops. Therefore, the cropping calendar contained in this atlas is based on climate variability such as wet (El-Nino), normal, and dry (La-Nina) years. The atlas provides detailed description of planting time and crop rotation in each sub-district for each season in one year based on climate condition. The preparation of cropping calendar, both spatially and tabularly, provides information on cropping alternative for wet, normal or dry years. These alternatives were developed at 1:250 000 scale to be applied as reference in determining planting time and cropping pattern for each region and sub district. Hence, the risks of yield lost or crop failure can be avoided or minimized. Further, the policy and strategy of procurement and distribution of farm inputs particularly fertilizer and seed can be properly formulated. This cropping calendar was arranged through several steps: (1) climate data collection and farmer’s interview, (2) analysis of planting time and mapping, (3) field verification, and (4) refining the delineation of cropping pattern based on the sensitivity level. For a better planning of cropping time and pattern, this cropping calendar was arranged at the scale of 1:250.000 and attached with an information of cropping time and pattern at the sub-district level.
Utilizing National Cropping Calendar Atlas in Copping with Variability and Climate Change ELEONORA RUNTUNUWU; H. SYAHBUDDIN
Jurnal Sumberdaya Lahan Vol 5, No 1 (2011)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v5n1.2011.%p

Abstract

Inappropriate cropping season and pattern resulted in the low production of seasonal food crops and the major cause of crop failure. A local wisdom called “Pranatamangsa” previously used to determine cropping time, now often miss due to climate anomaly. Crop growth is much affected by rainfall, solar radiation, and air temperature. The rainfall determines water availability and is essential requirement for crop growth. Planting time and cropping pattern until recently are adjusted to the climate variability and water availability to the crops. Therefore, the cropping calendar contained in this atlas is based on climate variability such as wet (El-Nino), normal, and dry (La-Nina) years. The atlas provides detailed description of planting time and crop rotation in each sub-district for each season in one year based on climate condition. The preparation of cropping calendar, both spatially and tabularly, provides information on cropping alternative for wet, normal or dry years. These alternatives were developed at 1:250 000 scale to be applied as reference in determining planting time and cropping pattern for each region and sub district. Hence, the risks of yield lost or crop failure can be avoided or minimized. Further, the policy and strategy of procurement and distribution of farm inputs particularly fertilizer and seed can be properly formulated. This cropping calendar was arranged through several steps: (1) climate data collection and farmer’s interview, (2) analysis of planting time and mapping, (3) field verification, and (4) refining the delineation of cropping pattern based on the sensitivity level. For a better planning of cropping time and pattern, this cropping calendar was arranged at the scale of 1:250.000 and attached with an information of cropping time and pattern at the sub-district level.
Rainfall Pattern Change and Its Impact on Length of Growing Period E. RUNTUNUWU; H. SYAHBUDDIN
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 26 (2007): Desember 2007
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n26.2007.%p

Abstract

Information of global climate change impact on agriculture sector is needed for planning agricultural adaptation strategy. The objective of the study was to analyze the climate change in Indonesia, especially rainfall pattern change, and its impact on the length of growing period. The data used for analysis was collected during a period of 1879-2006 from Manonjaya station in Tasikmalaya District, West Java Province. The rainfall pattern was analyzed using Oldeman method, which is used to compute the length of growing period. Rainfall pattern was determined based on three types of rainfall characteristic, i.e., wet year, normal year, and dry year for each period of 1879-1910, 1911-1940, 1941-1970, and 1971-2006. The result of this research showed that the rainfall pattern had been changed over the past 128 years, with the following descriptions: on the wet year, the ‘A’ type of rainfall pattern has no changed, but the wet month has decreased about two months; on normal year, the rainfall pattern has changed from B1 to B2, and on dry year, it was from C2 to D3. The length of growing period was becoming shorter due to this changes. During wet year, three times  cropping has changed to twice a year. During normal year, especially for enduring of the second growth period, the irrigation technology was necessary due to expand of water storage. During the dry year, due to the impact of dry spell, once crop a year will not be possible. The study provides insight into a strategy to adapt agriculture to climate change and to gain benefit of its change for suitable agriculture practices.
Co-Authors E. Runtunuwu Eleonora Runtunuwu Eleonora Runtunuwu Eleonora Runtunuwu