Abstract
This research was conducted to determine the effectiveness of legin and straw mulch treatment on the growth and yield of black soybean plants. This research was conducted from June 2020 to September 2020, at Ngablak, Kemuning, Ngargoyoso, Karanganyar Regency with an altitude of 750 m above the sea. This study used a factorial method with randomized complete block design (RCBD) consisting of two factors. The first factor is giving straw mulch E (E 0 = without pulsing, E 1 = with straw mulch). The second factor is the various doses of legin H (H 0 = without legin, H 1 = 7,5 kg / g seeds, H 2 = 15 g / kg seeds, H 3 = 22,5 g / kg seeds). The data obtained were analized using analysis of variance followed by Duncan's multiple Range test (DMRT) at the 5% level. The results showed that the treatment of straw mulch (E) had a very significant effect on all parameter observed. The treatment of various doses of legin and the interaction between mulching and legin were not significantly effect for the five parameters observed .Combination of E 1 H 2 treatment (with straw and legin mulch at a dose of 15 g / kg of seed)had highest yield weight of dry biomassa per plant 36.42 g, weight of dry seed per plant 27.84 g and weight of dry seeds per plot 479.12 g. The treatment of E 0 H 0 (without straw mulch and without legin) had the lowest yield to all parameter observed.
Highlights
PENDAHULUAN Tanaman leguminoseae adalah tanaman polong-polongan yang akarnya mampu bersimbiosis dengan bakteri Rhizobium dan kemudian membentuk bintil akar sehingga mampu mengikat nitrogen dari udara
This study used a factorial method with randomized complete block design (RCBD) consisting of two factors
The data obtained were analized using analysis of variance followed by Duncan's multiple Range test (DMRT) at the 5% level
Summary
Keterangan: Angka-angka yang diikuti huruf yang berbeda pada kolom yang sama, berbeda nyata pada uji DMRT 5 %. Interaksi perlakuan pemberian mulsa dan pemberian berbagai dosis legin menunjukan hasil tidak berbeda nyata terhadap parameter pengamatan,. Hal ini menunjukan bahwa interaksi antara pemberian mulsa dan berbagai dosis legin belum saling bersinergi dalam menghasilkan pertumbuahan dan hasil tanaman kedelai hitam. Pemberian mulsa Jerami dan legin terhadap hasil biji kering per petak disajikan pada histogram berikut ini. Berat biji kering per petak terendah 385,56 g diperoleh pada kombinasi E0H1 (tanpa mulsa dan legin dengan dosis 7 g/kg benih). Hal ini diduga karena pemberian mulsa jerami mempengaruhi tanamanan dalam penyerapan unsur hara sehingga hasil berat biji kering per petak pada E1 (pemberian mulsa jerami) lebih tinggi dibandingkan pada E0 (tanpa mulsa). (2015), bahwa perlakuan mulsa jerami memberikan pengaruh terhadap hasil biji kering per petak dikarenakan pemberian mulsa jerami diatas permukan tanah membuat benih gulma sulit tumbuh. Sehingga tanaman mengalami peningkatan produksi karena tidak ada kompetisi dalam penyerapan unsur hara antara tanaman pokok dan gulma
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