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	<title>agronomic practices &#8211; OIL PALM BULLETIN</title>
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	<description>Malaysian Palm Oil Board (MPOB)</description>
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		<title>Bulk Density Evaluation on Organic Soil Characteristics and Oil Palm Growth</title>
		<link>https://opb.mpob.gov.my/bulk-density-evaluation-on-organic-soil-characteristics-and-oil-palm-growth/</link>
		
		<dc:creator><![CDATA[najaa@mpob.gov.my]]></dc:creator>
		<pubDate>Thu, 13 Oct 2022 04:45:53 +0000</pubDate>
				<category><![CDATA[No. 84 (May 2022)]]></category>
		<category><![CDATA[agronomic practices]]></category>
		<category><![CDATA[geospatial]]></category>
		<category><![CDATA[GIS]]></category>
		<category><![CDATA[MSPO]]></category>
		<category><![CDATA[oil palm]]></category>
		<category><![CDATA[Remote Sensing]]></category>
		<category><![CDATA[sustainability]]></category>
		<guid isPermaLink="false">https://opb.mpob.gov.my/?p=2701</guid>

					<description><![CDATA[The role of tropical peatlands as a fossil carbon sink and source could be a potential nature-based solution for mitigating the ongoing climatic change. The oil palm cultivation on tropical peat needs to be assessed continuously following the dynamic changes in the oil palm ecosystem, influenced by land use management. This study aims to assess [&#8230;]]]></description>
										<content:encoded><![CDATA[<p>The role of tropical peatlands as a fossil carbon sink and source could be a potential nature-based solution for mitigating the ongoing climatic change. The oil palm cultivation on tropical peat needs to be assessed continuously following the dynamic changes in the oil palm ecosystem, influenced by land use management. This study aims to assess soil carbon stock, the bulk density effects on soil moisture, palm growth and CO<sub>2</sub> flux in oil palm plantations established on very deep peat in Bintulu, Sarawak. Carbon volume was higher in the surface zone but exposed to decomposition, leading to soil organic carbon loss. The high peat soil organic matter (&gt;93%) had contributed to high water retention capacity (576.11 ± 11.75%). The trunk diameter and height of oil palms were 51.29- 57.80 cm and 1.11-2.04 m, respectively. The CO<sub>2</sub> fluxes (0.64 ± 0.05 &#8211; 0.50 ± 0.03 g CO<sub>2</sub> m<sup>-2</sup> hr<sup>-1</sup>) were insignificant between sites, likely contributed by the similar soil organic carbon and carbon stock from SAB07 (331.28 t C ha<sup>-1</sup>) and SBU07 (315.78 t C ha<sup>-1</sup>) under the same management practices. The measurement of CO<sub>2</sub> flux is recommended to be conducted in sites of diverse peat decomposition states and ecosystems to evaluate the spatiotemporal variations.</p>
<p>Fungsi hutan paya gambut tropika sebagai simpanan dan sumber fosil karbon berpotensi menjadi penyelesaian berasaskan alam semula jadi dalam pengekangan perubahan iklim yang berterusan. Tahap penanaman sawit di tanah gambut perlu dinilai secara berterusan berikutan perubahan dinamik sifat tanah gambut yang dipengaruhi oleh pengurusan guna tanah. Kajian ini bertujuan untuk mengukur stok karbon tanah, kesan ketumpatan pukal tanah terhadap kelembapan tanah, pertumbuhan sawit dan pelepasan CO<sub>2</sub> yang dijalankan di ladang sawit tanah gambut jenis sangat dalam di Bintulu, Sarawak. Isipadu karbon adalah tinggi di zon permukaan tetapi terdedah kepada pereputan yang mengurangkan kandungan karbon organik tanah. Bahan organik tanah yang tinggi (&gt;93%) menyumbang kepada kapasiti penyimpanan air yang tinggi (576.11 ± 11.75%). Diameter batang dan tinggi sawit adalah berukuran 51.29-57.80 cm dan 1.11-2.04 m, masing-masing. Kadar pelepasan CO<sub>2</sub> (0.64 ± 0.05 &#8211; 0.50 ± 0.03 g CO<sub>2</sub> m<sup>-2</sup> hr<sup>-1</sup>) tidak berbeza antara tempat kajian, berkemungkinan disebabkan oleh persamaan peratusan karbon organik tanah dan stok karbon (315.78-331.28 t C ha<sup>-1</sup>) di bawah pengurusan ladang yang sama. Pengukuran pelepasan CO<sub>2</sub> disaran dilakukan di kawasan yang mempunyai kadar penguraian gambut dan ekosistem yang berlainan.</p>
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			</item>
		<item>
		<title>Managing Soil Deterioration and Erosion under Oil Palm</title>
		<link>https://opb.mpob.gov.my/managing-soil-deterioration-and-erosion-under-oil-palm/</link>
		
		<dc:creator><![CDATA[mpob_admin]]></dc:creator>
		<pubDate>Sun, 29 Mar 2020 11:13:09 +0000</pubDate>
				<category><![CDATA[No. 75 (November 2017)]]></category>
		<category><![CDATA[agronomic practices]]></category>
		<category><![CDATA[erosion]]></category>
		<category><![CDATA[oil palm]]></category>
		<category><![CDATA[run-off]]></category>
		<category><![CDATA[soil degradation]]></category>
		<guid isPermaLink="false">https://opb.mpob.gov.my/index.php/2020/03/29/managing-soil-deterioration-and-erosion-under-oil-palm/</guid>

					<description><![CDATA[Planting oil palm on steepland can cause severe soil degradation as erosion carries away fertile topsoil and nutrients, especially at the early stage of field development. Hence, good agronomic practices are essential to sustain the soil properties associated with oil palm productivity. This article is a review of soil conservation practices that can minimise soil [&#8230;]]]></description>
										<content:encoded><![CDATA[<p>Planting oil palm on steepland can cause severe soil degradation as erosion carries away fertile topsoil and nutrients, especially at the early stage of field development. Hence, good agronomic practices are essential to sustain the soil properties associated with oil palm productivity. This article is a review of soil conservation practices that can minimise soil degradation under oil palm planted on sloping land. The common agronomic practices include terracing, silt pits, mulches (empty fruit bunches and pruned fronds) and establishment of leguminous cover crops, all of which will help to reduce run-off and soil erosion. The purpose of implementing these techniques is to manage soil degradation in order to achieve site yield potential while safeguarding the environment right from the early stage of plantation development. Preserving riparian zones is also essential as they serve as natural filters for surface run-off from the plantation areas and hence minimise the amount of sediments and in doing so preserve the quality of water entering the watercourses.</p>
<p></p>
<p>Penanaman sawit di tanah bercerun boleh menyebabkan kemusnahan tanah disebabkan oleh hakisan yang akan membawa tanah atas yang subur bersama dengan nutrien, terutamanya pada peringkat awal pembangunan ladang. Oleh itu, amalan agronomi yang baik amatlah penting untuk mengekalkan sifat tanah yang baik untuk produktiviti sawit. Artikel ini membincangkan amalan pemuliharaan tanah bagi meminimumkan kemusnahan tanah bercerun yang ditanam dengan sawit. Amalan agronomi yang biasa digunakan termasuklah penyediaan teres, takungan kelodak, sungkupan (tandan buah kosong dan pelepah yang dipotong) dan menanam tanaman kekacang penutup bumi, semua ini akan membantu mengurangkan larian permukaan dan hakisan tanah. Tujuan menggunakan teknik-teknik ini adalah untuk mengawal kemusnahan tanah supaya dapat mencapai potensi hasil setempat dan menyelamatkan alam sekitar mulai pada peringkat awal pembangunan ladang. Memulihara zon riparian juga diperlukan kerana zon ini merupakan penapis semulajadi bagi larian permukaan dari kawasan ladang dan akan meminimumkan jumlah sedimen sekaligus memulihara kualiti air yang memasuki sumber air.</p>
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