Pengaruh Teknologi Pemupukan Terhadap Kwalitas Tanah, Pertumbuhan Dan Hasil Padi Varitas Ciherang Yang Ditanam Pada Sawah Bukaan Baru Di Dusun Kleseleon, Kabupaten Malaka, Nusa Tenggara Timur

Sukristiyonubowo Sukristiyonubowo, Damasus Riyanto, Sugeng Widodo

Abstract


Sukristiyonubowo et al, 2019. The Influence of Fertilizer Technologies on Soil Quality, Rice Growth and Biomass Production of Ciherang Vareity Cultivated in Newly Developed Lowland Rice Fields of Kleseleon, Malaka District. JLSO 8(1):

 

Highly weathered and potential acid sulphate soils are granted for newly developed lowland rice. They have many shortcomings including low in major elements and Fe and Mn in toxic levels. Study on soil fertility, rice growth and biomass productions of Ciherang variety planted in newly developed lowland rice was conducted in Umaklaran, BeluDistrict in 2014. The aim was to know the effect of technologies onsoil fertility, rice growth and biomass productions. The experiment was started in February 2014 and harvested in June 2014. Fivepromising treatments were studied including: Farmers Practices, Package A: NPK recommended rate + 3 tons compost, Package B: NPK recommended rate + 2 tons compost + Bio fertilizer, Package C: ¾ recommended rate + 3 tons compost + Bio fertilizer and Package D: NPK Recommended rate + 2 tons compost + Bio fertilizer, in which N, P and K were split two times: 50 % given at planting time and 50 % at 21 DAP (days after planting). Two kilo gram composite soils from five points and ring samples of 0-20 cm in depth were taken in February 2014 for analyzing chemical, physical and biological parameters, before soil ploughing. The results indicated that the soil fertility of newly developed low land rice fields in Umaklaran was low. Thesetechnologies increased the soil fertility including soil pH, soil organic C, available P and K extracted with HCl 25 %. In addition, the besttechnology was  observed in package B (NPK Recommendation rate + 2 tons organic fertilizer + Bio fertilizer/SMART, in which N and K fertilizer were applied 3 times: 50 % at planting, 25 % at 21 DAP and 25% before flowering) for tillers number and rice biomass productions. The yield reached 5.88 ± 0.29 and 4.84 ± 0.47 tons/ha/seasonfor rice grains and rice straw, respectively.

 


Keywords


tillering number,rice bimass production, newly opened lowland rice, Belu District



DOI: https://doi.org/10.33230/JLSO.8.1.2019.359

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E-ISSN: 2302-3015    P-ISSN: 2252-6188

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