The effect of legume cover crop Mucuna bracteata on soil physical properties, runoff and erosion in three slopes of immature oil palm plantation

Asystasia gangetica (L.) T. Anderson is a weed commonly found on oil palm plantations and can be used as cover crop for mature oil palm plantations due to its tolerance to shading. The use of cover crop is a soil conservation technique to support sustainable availability of soil nutrients by reducing erosion and nutrients loss, particularly during the rainy seasons. This research aims to determine the roles of A. gangetica as cover crop for measures against erosion and nutrients loss in mature oil palm plantation. This research was conducted in oil palm plantation, Unit Rejosari, PT Perkebunan Nusantara (PTPN) VII, District of Natar, South Lampung Regency from August 2014 to April 2015. The research used split block design in randomized complete block design with two factors and six replications. The main plots were ridge terrace, namely with and without ridge terrace. The sub plots were cover crops, namely with and without cover crops A. gangetica. The results show that using A. gangetica as cover crops in mature oil palm plantations effectively minimized erosion and loss of organic C, N, P, and K by 95.7%, 93.4%, 96.0%, and 90.0 %, respectively. The use of cover crop became more effective when combined with ridge terrace and reduced erosion by 94.1% and loss of organic C, N, P and K by 99.1%, 99.2%, 90.0% and 98.5%, respectively.

Download Full-text

Effects of cover crop systems on soil physical properties and carbon/nitrogen relationships in the coastal plain of southeastern USA

Soil and Tillage Research ◽

10.1016/j.still.2012.07.009 ◽

2013 ◽

Vol 126 ◽

pp. 276-283 ◽

Cited By ~ 55

Author(s):

Robert K. Hubbard ◽

Timothy C. Strickland ◽

Sharad Phatak

Keyword(s):

Physical Properties ◽

Coastal Plain ◽

Cover Crop ◽

Soil Physical Properties ◽

Southeastern Usa

Download Full-text

Kualitas Nutrisi dan Kecernaan Nyata Bahan Kering In Vitro (IVTDMD) Pakan Hijauan Cover Crop Kebun Sawit Untuk Ternak Ruminansia di Kabupaten Pelalawan

Jurnal Sains dan Teknologi Indonesia ◽

10.29122/jsti.v17i1.3423 ◽

2019 ◽

Vol 17 (1) ◽

Author(s):

Muhamad N. Rofiq ◽

S. Martono ◽

M. Surachman ◽

I. W. Angga D.

Keyword(s):

Oil Palm ◽

Cover Crop ◽

Dry Matter ◽

Sampling Method ◽

Destructive Sampling ◽

Nutrient Quality ◽

Oil Palm Plantation ◽

Dry Matter Digestibility

Fluctuation of quantity and quality of forage for ruminant animal is a problem of forage availability in Indonesia. Cover crop under oil palm plantation is potential sources of forage for ruminants but it has not been used effectively. This study was conducted to evaluate nutrients quality and estimated energy available of cover crop in dry season in Pelalawan regency, Riau. Seven years old oil palm plantation was plotted by randomized destructive sampling method. Nutrients composition include proximate, modified van soest fraction and protein association with cell wall (NDICP or ADICP) were analyzed for nutrient quality of cover crop. In vitro true dry matter digestibility (IVTDMD) and estimated energy available in cover crop were calculated from in vitro batch culture daisyII Ankom method. The result showed that cover crop is fresh forage energy feed because it contains more than 40% BK of TDN. Limited nutrient quality of cover crop is high contains of Lignin (22.4%BK). Value of IVTDMD of cover crop is 568.41 g/Kg DM with NDF digestibility 21.05% DM. In conclusion, cover crop under 7 years old oil palm plantation had enough nutrients quality for ruminant but it would be better for complete the data in wet season.Fluktuasi jumlah dan kualitas pakan hijauan untuk ternak ruminanasia adalah salah satu permasalahan penyediaannya di Indonesia. Covercrop kebun sawit merupakan sumber potensial pakan hijauan ternak ruminansia tetapi belum dimanfaatakan secara efektif. Studi ini dilakukan untuk mengevaluasi kualitas nutrisi dan ketersediaan energy dalam pakan cover crop kebun sawit pada musim kemarau di kabupaten Pelalawan, Riau. Metode yang digunakan adalah destructive sampling method secara acak. Komposisi nutrisi proksimat, fraksi serat van soest termodifikasi, dan kandungan protein yang terasosiasi dalam dinding sel tanaman (NDICP atau ADICP) di analisis sebagai parameter kualitas nutrisi covercrop. Nilai kecernaan nyata bahan kering/ in vitro true dry matter digestibility (IVTDMD) dan estimasi energi yang tersedia didalam covercrop di hitung dari inkubasi covercrop dalam incubator DaisyII teknologi Ankom selama 30 jam. Hasil evaluasi menunjukkan bahwa cover crop termasuk dalam pakan hijauan segar sumber energi karena kandungan TDN lebih dari 40%. Pembatas nutrisi pada cover crop adalah kandungan lignin yang besar (22.4% BK). Nilai IVTDMD dan kecernaan NDF cover crop sebesar 568.41 g/Kg BK dan 21.05% Kesimpulannya adalah cover crop kebun sawit umur 7 tahun mempunyai potensi sebagai pakan hijauan ruminansia dengan kualitas nutrisi yang baik tetapi juga memerlukan data kualitas nutrisinya pada musim hujan.Keywords: Nutrient quality, In vitro true dry matter digestibility (IVTDMD), cover crop, oil palm plantation, ruminants.

Download Full-text