Pengaruh Bahan Organik Terhadap Daya Ikat Air Pada Tanah Ultisol Lahan Kering

Abstract

Ultisol is one of the soils with limited physical characteristics. The water content is low, the permeability is not enough to pass water into the soil, and the organic-C content is classified as moderate. So that it affects the soil in storing low water, one solution to overcome the physical characteristics of is to provide organic matter into the soil. The purpose of this study was to determine the physical characteristics of Ultisol and to determine the effect of the combination of organic matter from cow dung and rice husk ash on the soil water holding capacity of ultisols on dry land. This study was conducted at the Laboratory of Wira Wacana Christian University, Sumba. This study used a completely randomized design with six treatments and four replications. Observation data were subjected to analysis of variance followed by LSD advanced test with a confidence level of 5%. The results showed that the application of organic matter on the soil significantly affected water content, field capacity, permeability, and C-organic. The application of organic matter can improve soil structure, not soil texture gave a very significant effect, and the treatment that had the best water content was 75% cow dung + 25% rice husk ash.

Analisis Kesesuaian Lahan untuk Tanaman Padi Sawah di Kabupaten Subang Bagian Tengah

“…Usaha perbaikan tersebut akan menaikkan 1 tingkat kelas kesesuaian lahan. Usaha yang dapat dipergunakan untuk mengatasi faktor pembatas berupa media perkaran, retensi hara dan hara tersedia adalah pemberian bahan organik, pengapuran, dan penambahan pupuk N, P, dan K. Bahan organik dapat memperbaiki struktur tanah, meningkatkan kemantapan agregat dan meningkatkan kemampuan tanah menyimpan air (Panda et al, 2021). Bahan organik merupakan komponen penyusun tanah yang penting dalam usaha perbaikan dan peningkatan sifatsifat tanah (Surya et al, 2017).…”

Pengaruh Penambahan Kotoran Sapi Terhadap Karakteristik Pupuk Organik Padat Berbahan Sabut Kelapa Dan Jerami Padi

“…Kotoran sapi juga tidak memiliki kandungan logam berat dan antibotik [5]. Selain itu proses pemanfaatan kotoran sapi sebagai bahan pupuk organik perlu dilakukan dikarenakan ada beberapa alasan yaitu kandungan udara dan air dalam kotoran sapi cukup tinggi sehingga penguraian zat organik menjadi sangat cepat [6].…”

Evaluation of land suitability as the basis for sustainable crop development

“…The research results show that the addition of organic matter to Oxisol soil has a highly significant effect on growth and uptake of N, P, and K nutrients in corn crops [7], because the organic matter applied to the soil is mineralized by releasing the nutrients that are available for the plants [29]. This is seen in the research of [30] where the application of organic matter significantly increases the N, P, and K content in the soil. Organic matter also provides additional organic C for the soil which plays an important role in forming stable soil aggregates, as shown by the research of [32], who state that the addition of organic matter can increase aggregate stability.…”