PENGARUH PVA PADA PEMBUATAN PUPUK UREA SLOW RELEASE FERTILIZER PADA MATRIKS KITOSAN TERMODIFIKASI
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Slow Release Fertilizer dapat dibuat dengan bahan organik maupun anorganik. Beberapa bahan telah dibandigkan sifatnya agar dapat menghasilkan membran SRF yang memiliki sifat paling cocok untuk dibuat sebagai SRF. Pada penelitian ini dibuat SRF dengan bahan kitosan-PVA-Urea-Ca dengan tujuan untuk meningkatkan efsiensi penyerapan pupuk urea oleh tanaman. Metode yang digunakan dalam pembuatan SRF ini yaitu metode casting, larutan membran akan disebarkan dalam suatu permukaan dan pelarut nya akan diuapkan sehingga dapat dihasilkan membran SRF kering. Hasil penelitian menunjukkan bahwa semakin banyak penambahan PVA maka dapat meningkatkan derajat swelling nya, meningkatan elastisitasnya, dan menurunkan porositasnya sehingga dapat meningkatkan efisiensi penyerapan urea oleh tanaman
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Referensi
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