PENGARUH PUPUK ANORGANIK DAN PUPUK ORGANIK CAIR TERHADAP PH, N-TOTAL, C-ORGANIK, DAN HASIL PAKCOY PADA INCEPTISOLS

Abstract

Penggunaan pupuk kimia secara terus menerus menyebabkan terjadinya penurunan kualitas tanah dan hasil panen. Pupuk organik cair memiliki unsur hara yang lengkap dan cepat tersedia serta mampu mengurangi penggunaan pupuk kimia. Penelitian ini dilakukan untuk mengetahui pengaruh pupuk anorganik dan pupuk organik cair terhadap pH, C-organik, N-total, dan hasil pakcoy (Brassica chinensis L) pada Inceptisols. Percobaan ini menggunakan Rancangan Acak Kelompok (RAK) dengan sembilan perlakuan dan tiga kali ulangan. Perlakuan Kontrol, ¼, ½, ¾, 1, 1¼, 1½ NPK dan 1 POC, dosis 1 NPK rekomendasi yaitu 2 g per tanaman dan 1 POC yaitu 0.03 ml per tanaman. Hasil penelitian menunjukkan bahwa pupuk anorganik dan POC memberikan pengaruh pH dan hasil tanaman, tetapi tidak berpengaruh terhadap N-total dan C-organik tanah. Perlakuan 1 NPK (2 g per tanaman) dan 1 POC (0.03 ml per tanaman) memberikan hasil terbaik yaitu 168.33 g per tanaman.

ABSTRACT

The application of chemical fertilizer continuously will caused decreasing in soil quality and crop yield. Liquid organic fertilizer has complete nutrients and quickly available can to reduce the use of chemical fertilizer. The research was conducted to find out the effect of combination liquid organic fertilizer and NPK fertilizer on pH, total-N, organic-C, and yield of  Pakchoy (Brassica chinensis L) on Inceptisols. The experiment conducted using a Randomized Block Design with nine treatments and three replications. Treatments control, ¼, ½, ¾, 1, 1¼, 1½ NPK dan 1 liquid organic fertilizer, with 1 dose of NPK recommendation that in 2 g per plant and 1 dose liquid organic fertilizer that is 0,03 ml per plant. The result of this research showed that NPK fertilizer and liquid organic fertilizer gave effect on pH crop yield but did not give effect on total-N, organic-C soil’s. The treatment 1 liquid organic fertilizer (0.03 ml per plant) and 1 dose of NPK (2 g per plant) gave the best effect on yield of pakchoy with 168.33 g per plant.