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Response of growth and production of cowpea (Vigna unguiculata L.) to the application of several concentrations of bamboo root of Plant Growth Promoting Rhizobacteria (PGPR) Nisa Wardatul Khusnah; Andarula Galushasti; Rr. Liliek Dwi Soelaksini; Jumiatun
International Integrated Agricultural Journal (IIAJ) Vol. 1 No. 2 (2025): November 2025
Publisher : KHD Production

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53713/iiaj.v1i2.403

Abstract

Cowpea is one of the food crops that has a fairly high protein content, but the production of cowpea is still relatively small. The cultivation technology applied is still not right, so that cowpea production does not increase. This study aims to determine the effect of applying several PGPR concentrations on the growth and production of cowpea. This study was conducted on the land of the Jember State Polytechnic from July 2024 to October 2024. This study used a Non-Factorial Randomized Block Design (RBD) with 6 treatments and 4 replications. Observation data was analysed statistically using Analysis of Variance (ANOVA). The treatments were PGPR concentrations of 0 ml/L, 18 ml/L, 29 ml/L, 40 ml/L, and 51 ml/L. The results showed that PGPR treatment with a concentration of 51 ml/L showed a difference in plant height, dry seed weight per plant, and 100 seed weight per plot. This is thought to be due to the role of PGPR as a biofertilizer and bio stimulant. Thus, PGPR can provide nutrition and produce growth hormone. This will have an impact on fulfilled the nutritional needs of cowpea, thus affecting the growth and production of cowpea.
Growth and Production Response of Cowbean (Vigna unguiculata (L.) Walp) to Goat Dunge and Straw Mulch Fertilizer Application Andarula Galushasti; Priyanti, Yani Hasanah; Ilham Muhklisin; Jumiatun
International Integrated Agricultural Journal (IIAJ) Vol. 2 No. 1 (2026): May 2026
Publisher : KHD Production

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53713/iiaj.v2i1.459

Abstract

Cowpea (Vigna unguiculata (L.) Walp) is a legume with good adaptability to various soil types and drought conditions, offering potential as an alternative protein source to soybeans. This study aimed to investigate the effect of goat manure fertilizer and straw mulch on the growth and yield of cowpea. The research was conducted from August to November 2024 at the agricultural field of Politeknik Negeri Jember using a factorial randomized block design with two factors: goat manure dosage (0, 90, 110, 130, and 160 g/plant) and mulch type (silver mulch and straw mulch), with three replications. Growth parameters and yield components such as plant height, number of pods, pod weight, and seed weight were recorded. The results showed that the application of 160 g/plant goat manure significantly increased plant height at 35 days after planting, the number of pods per plant, wet and dry pod weights, and seed yield, while straw mulch had no significant effect on any variable. No interaction effect was observed between the two treatments. The findings suggest that goat manure application is an effective strategy to enhance cowpea productivity under field conditions without the need for straw mulching.
Co-Authors Abdurrahman Salim Andarula Galushasti Berlina Yudha Pratiwi, Berlina Yudha Bety Etikasari Damanhuri Denny Trias Utomo, Denny Trias Dewi, Desi Wijayanti Eko Dyah Utami, Christa Ilham Muhklisin Irma Harlianingtyas Khusna, Nisa Wardatul Kusuma, Satria Indra Moh. Munih Dian Widianta Nisa Wardatul Khusnah Nur Indriawati, Ika Octavian Yudha Mahendra Pertami, Rindha Rentina Darah Priyanti, Yani Hasanah Pujiati Setyaningsih Pujiati Setyaningsih, Pujiati Rr. Liliek Dwi Soelaksini Rudi Wardana Setyo Andi Nugroho Shinta Ayu Nani Shinta Ika Sandhi Soelaksini, Liliek Dwi Wulandari, Fany Inayah