Kajian Sifat Fisika Tanah Ultisol Menggunakan Pembenah Kompos Bertanaman Pakcoy (Brassica Rapa L.) Dengan Tingkat Pemberian Air Berbeda

Abstract

SYARAH MULKAN PARINDURI: The study of the physical properties of ultisol soil using the composting planted with pakcoy (Brassica rapa L.) with different water level, supervised by SUMONO and NAZIF ICHWAN. Soil physics is an important factor for plant growth. The objective of this research is to study the physical properties of ultisol soil by using compost planting with pakcoy (Brassica rapa L.) with different water level. Research was done on greenhouse scale using a completely non factorial randomized design, consisting of 3 treatments and 8 replications, ie 100 % water supply of field capacity, water supply of 80 % field capacity, and water supply at 60 % of field capacity. Parameters observed were soil texture, organic matter, porosity, soil temperature, soil permeability, evapotranspiration, wet weight and dry weight of the plant. The results showed that the soil was sandy loam textured ultisol soil, soil organic matter was 5,69 %, in average porosity was ranged from 52,23 to 54,50 %, average soil temperature was 30,5o C, permeability was ranged from 6,15 to 7,76 cm/h, evapotranspiration was ranged from 0,66 to 0,68 mm/d, wet weight of pakcoy plants was ranging from 57,5 to 70 g and dry weight of plants was ranged from 3,61 to 5,09 g