Respons Pertumbuhan dan Produksi Tanaman Kedelai Terhadap Pemberian Pupuk Organik Cair dan Mulsa
Response of soybean growth and production on application of liquid organic fertilizer and mulch
DOI:
https://doi.org/10.32734/joa.v5i1.2462Keywords:
kedelai, konsentrasi, mulsa jerami, pupuk organik cairAbstract
Rendahnya produksi kedelai diakibatkan oleh berkurangnya lahan subur yang disebabkan penggunaan pupuk anorganik secara terus menerus. Oleh karena itu perlu dilakukan usaha perbaikan dengan cara penggunaan pupuk organik. Penelitian ini bertujun untuk mengetahui respons pertumbuhan dan produksi tanaman Kedelai terhadap konsentrasi POC dan berat mulsa jerami padi. Penelitian ini dilaksanakan di Lahan masyarakat Desa Aras Kabu, Kec. Beringin Kab. Deli serdang dengan ketinggian tempat ± 25 meter dpl dari bulan November 2015 sampai Februari 2016, Penelitian menggunakan Rancangan Acak Kelompok dengan 2 Faktor perlakuan. Faktor pertama adalah konsentrasi POC (0; 40; 80; dan 120 ml/L air) dan faktor kedua yaitu berat Mulsa Jerami Padi (0: 2,5: 5 dan 7,5 ton per ha). Peubah yang diamati adalah tinggi tanaman, diameter batang, total luas daun, bobot kering tajuk, bobot kering akar, jumlah polong berisi, jumlah polong hampa, jumlah cabang produktif, bobot kering 100 biji dan bobot kering biji per plot. Hasil penelitian menunjukkan bahwa perlakuan konsentrasi POC 120 ml/L cenderung meningkatkan hasil produksi tanaman kedelai pada hampir semua peubah amatan. Berat Mulsa jerami padi 5 ton per ha cenderung meningkatkan hasil produksi tanaman kedelai pada semua peubah amatan. Interaksi perlakuan konsentrasi dan berat mulsa jerami padi cenderung meningkatkan hasil produksi kedelai pada kombinasi perlakuan terbaik konsentrasi 120 ml dan berat mulsa jerami 5 ton per ha.
The low production of soybean is caused by less soil fertility who caused by application inorganic fertilizer continuously. Therefore is done trial by improvement with application organic fertilizer. This research aims to determine response of soybean plant growth to the POC concentration and weight of rice straw mulch. This research is practiced in the society land Aras Kabu Village. Kec.Beringin Kab. Deli Serdang with altitude e± 25 meter dpl from November 2015 until February 2016, The experiment design was factorial randomized block design with two factors. The first factors is concentration POC (0; 40; 80; and 120 ml/L water) and the second is weight of rice straw mulch (0: 2,5: 5 and 7,5 ton per ha). The parameters observed were plant height, stem diameter, total leaf area, shoot dry weight, root dry weight, number of pods contain, number of empty pods, number of productive branches, 100 seed dry weight and seed dry weight per plot.The result showed that 120ml POC concentration treatments tend to increase crop production of soybean in almost all variables of observation. The weight of rice straw 5 ton per ha tend to increase crop production of soybean in all variables of observation. Interaction between concentration and weight of rice straw mulch tend to increase crop production soybean in combination the best treatment concentration of 120 ml and the weight of straw mulch 5 ton per ha.
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