EFFECTS OF MIXED ORGANIC AND INORGANIC FERTILIZERS APPLICATION ON SOIL PROPERTIES AND THE GROWTH OF KENAF (<i>HIBISCUS CANNABINUS</i> L.) CULTIVATED ON BRIS SOILS

Abstract

The demand for kenaf in the world increases rapidly by the years. Cultivation of the crop in Malaysia is a challenging task, especially when kenaf is grown on sandy soils with low fertility, such as the BRIS Soils (Beach Ridges Interspersed with Swales). A pot study was conducted in a glasshouse at Universiti Putra Malaysia to evaluate the potential of inorganic and organic fertilizers or their combination for growing kenaf on very sandy BRIS Soils, using variety V36. There were altogether sixteen treatments: (T Results showed that application of inorganic material or organic fertilizer in combination with chemical fertilizer (T 2 and T 16 ) improved soil fertility, which are reflected by the increase inexchangeable K, Ca and Mg, CEC, total N, total C and available P. The highest kenaf growth was observed in T 15 treatment.Application of biochar, zeolite or chicken manure alone on the soils did not result in better kenaf growth compared to the control. Zeolite and biochar should be applied with other fertilizers or organic substrate to obtain a positive yield of crop and increase the soil properties. In addition, more studies on the application of chicken manure at different ratios should be conducted to obtain the best yield. Combination treatment, T 15 (NPK + biochar + zeolite) can be suggested to the farmers especially cultivation of kenaf on sandy BRIS soil in order to obtain the best kenaf growth performance and indirectly reduce excessive use of chemical fertilizers.

Effect of wood vinegar and rice husk biochar on soil properties and growth performances of immature kenaf (Hibiscus cannabinus) planted on BRIS soil

“…Application of biochar alone on BRIS soil might not have resulted in the best growth performance of kenaf. However, biochar must be combined with NPK fertiliser and zeolite to obtain the highest plant growth performance (Basri et al, 2013;Shi et al, 2019). Incorporation of biochar derived from burn rice husk into soil media improved available nutrient since rice husk biochar contain a high nutrient concentration of P, Na, Ca, and Mg (Cho et al, 2017).…”

PERAN KOMPOS TANDAN KOSONG KELAPA SAWIT DAN PUPUK ANORGANIK DALAM MENINGKATKAN SERAPAN HARA N, P, K DAN PERTUMBUHAN TANAMAN KENAF (Hibiscus cannabinus L.)

“…Pertambahan diameter batang makin besar dengan bertambahnya dosis kompos TKKS maupun pupuk anorganik. Basri et al (2013) menyatakan bahwa diameter batang kenaf secara signifikan bervariasi pada perlakuan kombinasi dosis pupuk organik dan pupuk anorganik. Kombinasi pupuk organik dan anorganik menghasilkan diameter batang yang lebih besar dibandingkan dengan aplikasi pupuk tunggal.…”

The Effect of Soil Submersion and Conditioner Materials on Residual Organophosphate Pesticides in Soil and Shallot Bulbs

“…Before planting, submersion of the cultivated soil could decrease residual pesticides in the ground (Ogolla et al, 2016). In addition, the soil conditioner materials improve the characteristics of the soil physically, chemically, and biologically and reduce the soil degradation resulting from the use of fertilizers and pesticides irrationally (Akbar Basri et al, 2013;Jemal & Abebe, 2016).…”