SIFAT KIMIA TANAH, POPULASI BAKTERI PELARUT FOSFAT, DAN HASIL CABAI PADA APLIKASI BEBERAPA JENIS MULSA PADA INCEPTISOL NGEMPLAK, BOYOLALI

Fahrizal Yusuf Bahtiar, Sudadi Sudadi, Vita Ratri Cahyani

Abstract

Mulch was oftenly applied on chilli pepper cultivation. It aimed to cover the soil from various factors which can reduce the yield. This research aims to study the effect of various type of mulch (silver-black plastic and straw) to soil chemical properties, population of PSB, and chilli pepper yield (harvest time, weight of dry plant biomass, and weight of fresh fruit per plant), also to study the correlation between the population of PSB with chilli pepper yield. The research has been conducted on December 2015 until October 2016, on inceptisol field in Ngemplak, Boyolali. The variables of this research are soil properties (pH, organic-carbon, total-N, available-P, and exchangable-K), total-PSB, and chilli pepper yield (harvest time, weight of dry plant biomass, and weight of fresh fruit per plant). The result showed that various type of mulch application significantly increased  soil-pH, soil total-N, soil available-P, total-PSB, weight of dry plant biomass, weight of fresh fruit per plant, and fastened harvest time. It also tend to increase organic-carbon and soil exchangeable-K. There were strong correlations between total-PSB and harvest time, weight of dry plant biomass, and weight of fresh fruit per plant. The best result showed by silver-black plastic mulch application.

Keywords

Phosphate solubilizer bacteria; soil chemical properties; chilli pepper yield; silver-black plastic mulch; straw mulch

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