KEHILANGAN NITROGEN PADA SISTEM USAHATANI JAGUNG MANIS DI LAHAN GAMBUT KALIMANTAN TENGAH (Nitrogen Lost on Sweet Corn Of Peatland Farming System in Central Kalimantan)

The objectives of KKN-PPM activity are: 1) The method of utilizing the wastes of agriculture and stock husbandry as the media source of production oriented at the quality of outcome and the preservation of environment; and 2) The formation of sustainable integrated farming centers. The methods of activity applied are participation and action that involve the groups of target society and students who act as the facilitators. This activity was followed by 28 students partnering with <em>Cimpago Putih</em> farmer group. The results achieved on this activity are that the target groups have understood the method of utilizing the wastes of agriculture and stock husbandry, and together with the students made the demonstration plot of integrated farming system. The results achieved on each demonstration plot are: 1) The demonstration plot of mina paddy namely the growths of paddy and fish that look good; 2) The demonstration plot of combining fishery and stock husbandry, namely to decrease the contamination of environment by chicken manure; 3) The demonstration plot of biogas made of cow dung, namely gas (formed after 20 days from the first refill) and liquid compost (the sludge of biogas by-product) with the particle composition of nitrogen (2.59%), phosphor (0.022%), and kalium (4.01%); 4) The demonstration plot of compost from the waste of agriculture namely solid compost (straw and kirinyuh) with the particle composition of nitrogen, phosphor, and kalium are 2.14, 0.407, and 1.79%; and 5) the demonstration plot of cultivation and processing of forage namely the better growth of elephant grass with the ratio of alive and dead elephant of 30:1 and the paddy straw of ammoniation (the smell of ammonia, the color of brown green, and none fungus).

Download Full-text

KINEROS2-based simulation of total nitrogen loss on slopes under rainfall events

CATENA ◽

10.1016/j.catena.2019.01.039 ◽

2019 ◽

Vol 177 ◽

pp. 13-21 ◽

Cited By ~ 6

Author(s):

Miaoying An ◽

Yuguo Han ◽

Lei Xu ◽

Xiuru Wang ◽

Chang Ao ◽

...

Keyword(s):

Total Nitrogen ◽

Nitrogen Loss ◽

Rainfall Events ◽

Total Nitrogen Loss

Download Full-text

APLIKASI FORMULASI PUPUK ORGANIK UNTUK EFISIENSI PENGGUNAAN PUPUK ANORGANIK NPK PHONSKA PADA TANAMAN JAGUNG MANIS (Zea mays saccharata Sturt)

EUGENIA ◽

10.35791/eug.23.3.2017.18961 ◽

2018 ◽

Vol 23 (3) ◽

Author(s):

P. Tumewu ◽

M. Montolalu ◽

A. G. Tulungen

Keyword(s):

Sweet Corn ◽

Block Design ◽

Organic Fertilizer ◽

Hydrilla Verticillata ◽

Dry Weight ◽

Chicken Manure ◽

Growth And Yield ◽

Cow Dung ◽

Corn Yield ◽

Randomized Block Design

ABSTRACT The aim of this research is to know the effect of organic fertilizer formulation and NPK Phonska fertilizer on the growth and yield of sweet corn, and to get organic fertilizer formulation for the efficiency of inorganic fertilizer NPK Phonska in increasing the yield of sweet corn. The factorial experiment was designed using a Randomized Block Design consisting of two factors. Factor I (A) = Formulation of Organic Fertilizer, consisting of A1 = Water hyacinth, Cow Manure, chicken manure, A2 = Hydrilla verticillata, cow dung, chicken manure, A3 = Kirinyuh, cow dung, chicken manure. Factor II (B) = Phonska fertilizer, Consist of B1 = 25% Phonska, B2 = 50% Phonska, B3 = 75% Phonska, B4 = 100% Phonska. Each treatment was repeated three times to obtain 36 experimental plots. Response variables observed included: Plant dry weight, Length of cob, Cob diameter, Weight of cob, measured at harvest. Data were analyzed using variance analysis and if there was effect of treatment continued by using Test of Honest Real Difference (BNJ) at 5% test level. The results showed that the interaction between organic fertilizer formulation and NPK phonska significantly affect the diameter of cob and sweet corn cob weight. The dry weight of sweet corn plant is influenced by organic fertilizer formulation. Formulation of organic fertilizer Hydrilla verticillata + cow dung + chicken dung 20 ton / ha dose able to reduce the dose of NPK Phonska at half of the recommended dosage.Keywords: formulation of organic fertilizer, sweet corn yield, Phonska ABSTRAK Penelitian bertujuan untuk mengetahui pengaruh interaksi formulasi pupuk organik dan pupuk NPK Phonska terhadap pertumbuhan dan hasil jagung manis, serta mendapatkan formulasi pupuk organik untuk efisiensi pupuk anorganik NPK Phonska dalam meningkatkan hasil jagung manis. Percobaan factorial dirancang menggunakan Rancangan Acak Kelompok yang terdiri dari dua faktor. Faktor I (A) = Formulasi Pupuk Organik, terdiri dari A1 = Eceng gondok, Kotoran sapi, kotoran ayam, A2 = Hydrilla verticillata, kotoran sapi, kotoran ayam, A3 = Kirinyuh, kotoran sapi, kotoran ayam. Faktor II(B) = Pupuk Phonska, Terdiri dari B1 = 25% Phonska, B2 = 50% Phonska, B3 = 75% Phonska, B4 = 100 % Phonska. Setiap perlakuan diulang tiga kali sehingga diperoleh 36 petak percobaan. Variabel respons yang diamati meliputi : Berat kering tanaman, Panjang tongkol, Diameter tongkol, Bobot tongkol, diukur pada saat panen. Data dianalisis menggunakan analisis ragam dan jika terdapat pengaruh perlakuan dilanjutkan dengan menggunakan Uji Beda Nyata Jujur (BNJ) pada taraf uji 5 %. Hasil penelitian menunjukkan bahwaInteraksi antara formulasi pupuk organik dan NPK phonska berpengaruh nyata terhadap diameter tongkol dan bobot tongkol jagung manis. Bobot kering tanaman jagung manis dipengaruhi oleh formulasi pupuk organik. Formulasi pupuk organik Hydrilla verticillata+ kotoran sapi+kotoran ayam dosis 20 ton/ha mampu menurunkan dosis NPK Phonska setengah dari dosis rekomendasi.Kata kunci: formulasi pupuk organik, hasil jagung manis, Phonska

Download Full-text

EFFECTS OF AMELIORANT COMPOSITIONS ON NITROGEN MINERALIZATION AND UPTAKE BY SWEET CORN IN DEGRADED PEATLAND

Indonesian Journal of Agricultural Science ◽

10.21082/ijas.v15n1.2014.p35-45 ◽

2014 ◽

Vol 15 (1) ◽

pp. 35 ◽

Cited By ~ 1

Author(s):

Eni Maftu’ah ◽

Azwar Ma'as ◽

Benito Heru Purwanto

Keyword(s):

Soil Ph ◽

Sweet Corn ◽

Block Design ◽

Peat Soil ◽

N Uptake ◽

Mineral Soil ◽

Chicken Manure ◽

N Availability ◽

Available N ◽

Local Farm

Peat soil is characterized by poor nitrogen (N) availability. Ameliorants are expected to rectify this problem. This research aimed to study the effect of ameliorant on N availability and N uptake by sweet corn plant in degraded peatland. The experiment was conducted in the greenhouse in May-July 2011 and on peatland of Kalampangan Village, Palangkaraya, Central Kalimantan in September-December 2011. Burnt peat soil of Kalampangan was used in the greenhouse experiment and sweet corn was used as an indicator plant. The treatments consisted of two factors, i.e. compositions of ameliorants by weight (A1 = 80% chicken manure + 20% dolomite; A2 = 80% local farm weed + 20% dolomite; A3 = 80% mineral soil + 20% dolomite; A4 = 20% chicken manure + 20% local farm weed + 20% residue of Chinese water chestnut (Eleocharis dulcis) + 20% mineral soil + 20% dolomite; and A5 = 19% chicken manure + 71.5% mineral soil + 9.5% dolomite) and rates of those ameliorants (5, 10, 15, 20 and 25 t ha-1). The experiment was arranged in a completely randomized block design with three replications. Data were collected every two weeks for five times. Observations were made on soil pH, available N (NH4+, NO3-), plant height, and N uptake in root and shoot. The results showed that treatment A1 increased soil pH and availability of NH4+ and NO3- in peat soils at the maximum vegetative stage. Treatment A1 provided the highest N availability and N uptake by the plant. Field experiment showed that N uptake increased with the plant yield. Optimum yield of fresh corn cob was obtained from treatment A1 at the rate of 20 t ha-1. This research reconfirms the effectiveness of chicken manure and dolomite as peat soil ameliorant.

Download Full-text

Forecasting N2O emission and nitrogen loss from swine manure composting based on BP neural network

MATEC Web of Conferences ◽

10.1051/matecconf/201927701010 ◽

2019 ◽

Vol 277 ◽

pp. 01010

Author(s):

Haotian Chen ◽

Shaoze Sun ◽

Baoli Zhang

Keyword(s):

Neural Network ◽

Greenhouse Gas ◽

Total Nitrogen ◽

Bp Neural Network ◽

Greenhouse Gas Emission ◽

Nitrogen Loss ◽

Swine Manure ◽

Gas Emission ◽

Total Nitrogen Loss ◽

The Mean

Nitrogen loss and greenhouse gas emission during compost will cause secondary pollution and waste nutrients. To address this issue, a predictive model was set up to obtain a clear knowledge of the N2O emission and nitrogen loss from swine manure composting. This paper collected 68 group data from 11 published papers about pig manure composting N2O emission and total nitrogen loss. Select 4 indexes were taken as predicted indexes include aeration rate, moisture content, C/N, and the amount of superphosphate to establish a BP neural network for forecasting the N2O emission and total nitrogen loss from composting. The analyses show that the mean error of N2O emission forecasting model is 1.17; the value of MAPE is 138.85%. As for nitrogen loss, the mean error is 24.72 and the mean absolute percentage error is 11.06%. Compare to the traditional linear regression, the BP neural network model has good accuracy on forecasting N2O emission and TN loss from manure composting. BP neural network has considerable application prospect in forecast nitrogen loss and greenhouse gas emission from composting.

Download Full-text

Effects of Turning Frequency on Ammonia Emission during the Composting of Chicken Manure and Soybean Straw

Molecules ◽

10.3390/molecules27020472 ◽

2022 ◽

Vol 27 (2) ◽

pp. 472

Author(s):

Qianqian Ma ◽

Yanli Li ◽

Jianming Xue ◽

Dengmiao Cheng ◽

Zhaojun Li

Keyword(s):

Nitrogen Loss ◽

Great Influence ◽

Archaeal Community ◽

Chicken Manure ◽

Ammonia Emission ◽

Nh3 Emission ◽

Total Nitrogen Loss ◽

Soybean Straw ◽

The Impact ◽

N Fractions

Here, we investigated the impact of different turning frequency (TF) on dynamic changes of N fractions, NH3 emission and bacterial/archaeal community during chicken manure composting. Compared to higher TF (i.e., turning every 1 or 3 days in CMS1 or CMS3 treatments, respectively), lower TF (i.e., turning every 5 or 7 days in CMS5 or CMS7 treatments, respectively) decreased NH3 emission by 11.42–18.95%. Compared with CMS1, CMS3 and CMS7 treatments, the total nitrogen loss of CMS5 decreased by 38.03%, 17.06% and 24.76%, respectively. Ammonia oxidizing bacterial/archaeal (AOB/AOA) communities analysis revealed that the relative abundance of Nitrosospira and Nitrososphaera was higher in lower TF treatment during the thermophilic and cooling stages, which could contribute to the reduction of NH3 emission. Thus, different TF had a great influence on NH3 emission and microbial community during composting. It is practically feasible to increase the abundance of AOB/AOA through adjusting TF and reduce NH3 emission the loss of nitrogen during chicken manure composting.

Download Full-text

EFFECTS OF AMELIORANT COMPOSITIONS ON NITROGEN MINERALIZATION AND UPTAKE BY SWEET CORN IN DEGRADED PEATLAND

Indonesian Journal of Agricultural Science ◽

10.21082/ijas.v15n1.2014.35-45 ◽

2014 ◽

Vol 15 (1) ◽

pp. 35

Author(s):

Eni Maftu’ah ◽

Azwar Ma'as ◽

Benito Heru Purwanto

Keyword(s):

Soil Ph ◽

Sweet Corn ◽

Block Design ◽

Peat Soil ◽

N Uptake ◽

Mineral Soil ◽

Chicken Manure ◽

N Availability ◽

Available N ◽

Local Farm

Peat soil is characterized by poor nitrogen (N) availability. Ameliorants are expected to rectify this problem. This research aimed to study the effect of ameliorant on N availability and N uptake by sweet corn plant in degraded peatland. The experiment was conducted in the greenhouse in May-July 2011 and on peatland of Kalampangan Village, Palangkaraya, Central Kalimantan in September-December 2011. Burnt peat soil of Kalampangan was used in the greenhouse experiment and sweet corn was used as an indicator plant. The treatments consisted of two factors, i.e. compositions of ameliorants by weight (A1 = 80% chicken manure + 20% dolomite; A2 = 80% local farm weed + 20% dolomite; A3 = 80% mineral soil + 20% dolomite; A4 = 20% chicken manure + 20% local farm weed + 20% residue of Chinese water chestnut (Eleocharis dulcis) + 20% mineral soil + 20% dolomite; and A5 = 19% chicken manure + 71.5% mineral soil + 9.5% dolomite) and rates of those ameliorants (5, 10, 15, 20 and 25 t ha-1). The experiment was arranged in a completely randomized block design with three replications. Data were collected every two weeks for five times. Observations were made on soil pH, available N (NH4+, NO3-), plant height, and N uptake in root and shoot. The results showed that treatment A1 increased soil pH and availability of NH4+ and NO3- in peat soils at the maximum vegetative stage. Treatment A1 provided the highest N availability and N uptake by the plant. Field experiment showed that N uptake increased with the plant yield. Optimum yield of fresh corn cob was obtained from treatment A1 at the rate of 20 t ha-1. This research reconfirms the effectiveness of chicken manure and dolomite as peat soil ameliorant.

Download Full-text