Contrasting effects of biochar- and organic fertilizer-amendment on community compositions of nitrifiers and denitrifiers in a wheat-maize rotation system

AbstractThe appropriate nitrogen (N) fertilizer regulator could increase N utilization of crops and reduce N losses in the North China Plain. We investigated the effects of reduced inorganic-N rate combined with an organic fertilizer on nitrous oxide (N2O) emissions in winter wheat and summer maize rotation system. Simultaneously studied the effect of different treatments on N use efficiency (NUE), N balance and net income. After reducing the amount of nitrogen fertilizer in the wheat-corn rotation system, the results showed that the cumulative emission of soil N2O from the RN40% + HOM [40% of RN (recommended inorganic-N rate) with homemade organic matter] treatment was 41.0% lower than that of the RN treatment. In addition, the N production efficiency, agronomic efficiency, and apparent utilization were significantly increased by 50.2%, 72.4% and 19.5% than RN, respectively. The use of RN40% + HOM resulted in 22.0 and 30.1% lower soil N residual and N losses as compared with RN. After adding organic substances, soil N2O cumulative emission of RN40% + HOM treatment decreased by 20.9% than that of the HAN (zinc and humic acid urea at the same inorganic-N rate of RN) treatment. The N production efficiency, N agronomic efficiency and NUE of RN40% + HOM treatment were 36.6%, 40.9% and 15.3% higher than HAN’s. Moreover, soil residual and apparent loss N were 23.3% and 18.0% less than HAN’s. The RN40% + HOM treatment appears to be the most effective as a fertilizer control method where it reduced N fertilizer input and its loss to the environment and provided the highest grain yield.

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ESTIMATION OF CONSUMPTIVE USE OF POTATO CROP PIANTED UNDER DRIP IRRIGATION SYSTEM BY USING SWRT TECHNOLOGY

Al-Qadisiyah Journal For Agriculture Sciences (QJAS) (P-ISSN 2077-5822 E-ISSN 2617-1479) ◽

10.33794/qjas.vol10.iss1.109 ◽

2020 ◽

Vol 10 (1) ◽

pp. 271-282

Author(s):

J.N. Abedalrahman ◽

R.J. Mansor ◽

D.R. Abass

Keyword(s):

Water Consumption ◽

Drip Irrigation ◽

Soil Depth ◽

Irrigation System ◽

Potato Crop ◽

Block Design ◽

Organic Fertilizer ◽

Control Treatment ◽

Drip Irrigation System ◽

Spring Season

A field experiment was carried out in the field of the College of Agriculture / University of Wasit, located on longitude 45o 50o 33.5o East and latitude 32o 29o 49.8o North, in Spring season of the agricultural season 2019, in order to estimate the water consumption of potato crop using SWRT technology and under the drip irrigation system. The experiment was designed according to Randomized Complete Block Design (RCBD) with three replications and four treatments that include of the SWRT treatment (the use of plastic films under the plant root area in an engineering style), and the treatment of vegetal fertilizer (using Petmos), organic fertilizer (sheep manure), and the control treatment . Potato tubers (Solanum tuberosum L.) var. Burin was planted for spring season on 10/2/2019 at the soil depth of 5-10 cm. The highest reference water consumption for the potato crop during the season was calculated by Najeeb Kharufa, which was 663.03 mm. The highest actual water consumption for the potato crop during the season for the control treatment was 410.1 mm. The results showed increase in the values of the crop coefficient (Kc) in the stages of tubers formation and tubers filling stage as compared to the vegetative and ripening stages, ranged from 1.37-1.92 for the two stages of tubers formation and tubers filling. The SWRT treatment gave the highest water use efficiency during the season, was 3.46 kg m-3 .

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Dairy Farmers Empowerment in Subak Anggabaya Penatih Timur Denpasar Bali Indonesia

International Journal of Contemporary Research and Review ◽

10.15520/ijcrr/2018/9/05/510 ◽

2018 ◽

Vol 9 (05) ◽

pp. 20218-20223

Author(s):

I Ketut Arnawa ◽

I Wayan Runa ◽

I Made Sukerta ◽

Putu Sri Astuti ◽

Dan Luh Kadek Budi Martini

Keyword(s):

Rice Straw ◽

Azadirachta Indica ◽

Nutritional Value ◽

Organic Fertilizer ◽

Process Technology ◽

Dairy Farmers ◽

Training Activity ◽

Good Nutrition ◽

And Training ◽

Spraying Method

The main purpose for the application of science and technology for livestock group of cow, is to form a group of skilled and professional livestock, as vaccinators, can take advantage of Azadirachta indica leaves a plant insecticide, apply a good cage sanitation, can produce organic fertilizer from feces of cow, can treat hay as feed to good nutritional value. The method used is education and training. Activity results obtained, that 10 percent of members of the group have managed to become vaccinators cadres, able to implement good sanitation stables, feces of cow (Stomoxys calsitrans) can process technology with EM4 into organic fertilizer and can process the rice straw with urea spraying method, to produce feed hay to the value of good nutrition for growing cattle.

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Respon Akar Bibit Aren Genjah (Arenga pinnata) Di Pembibitan Pada Pemberian Dosis dan Interval Pupuk Organik Cair Nasa

Agrifarm : Jurnal Ilmu Pertanian ◽

10.24903/ajip.v7i1.368 ◽

2018 ◽

Vol 7 (1) ◽

pp. 28

Author(s):

Yetti Elidar

Keyword(s):

Organic Fertilizer ◽

Dry Weight ◽

Treatment Combination ◽

Root Dry Weight ◽

Randomized Design ◽

Dose Study ◽

Palm Sugar ◽

Wet Weight ◽

Completely Randomized Design ◽

Leaf Dry Weight

Research on the response of roots of palm sugar palm seeds (Arenga pinnata) in nurseries at doses and intervals of Nasa liquid organic fertilizer. Aims to determine the dosage, interval and combination of dosages and fertilization intervals with Nasa liquid organic fertilizer which can provide the best dry weight of the roots in the nursery. The research design used was a Completely Randomized Design (CRD) with 3x3 factorial experiments and each treatment was repeated 8 (eight) times, consisting of: the first factor was the treatment of POC Nasa dose in a concentration of 3 cc POC Nasa per liter of water (D) consists of 3 levels, namely: d1 = 300 ml POC Nasa, d2 = 400 ml POC Nasa, d3 = 500 ml POC Nasa, while the second factor is the treatment of POC Nasa Interval (I) consisting of 3 levels, namely: i1 = 2 once a week, i2 = once every 3 weeks, i3 = once every 4 weeks. The results of the POC Nasa dose study had a significant effect on leaf wet weight, leaf dry weight, root wet weight and root dry weight. The best dose at this level are: d2 (400 ml of Nasa liquid organic fertilizer), the interval of liquid organic fertilizer Nasa has a significant effect on leaf wet weight, leaf dry weight, root wet weight and root dry weight. The best dose at this level is: i1 (once every 2 weeks). The treatment combination has no significant effect on all parameters.

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PEMANFAATAN LIMBAH JAGUNG MENJADI PUPUK ORGANIK UNTUK PENYUBURAN LAHAN PERTANIAN

Jurnal Rekayasa Lingkungan ◽

10.29122/jrl.v6i1.1912 ◽

2018 ◽

Vol 6 (1) ◽

Author(s):

Daru Mulyono

Keyword(s):

Agricultural Land ◽

Organic Fertilizer ◽

Economic Value ◽

Soil Microorganism ◽

Appropriate Technology ◽

Inorganic Fertilizer ◽

Plant Materials ◽

Chemical Soil ◽

Stem Leaf

The use of maize waste plant materials (stem, leaf, and husk cover) have high economic value to be processed become organic fertilizer for agricultural land fertilizer. Maize have several and quite high contents of macro and micro nutrients. This activity was hoped that the farmers can overcome the increasing price of inorganic fertilizer recently and furthermore farmers can reap higher income. Beside higher income the use of organic fertilizer can improve the nature and behaviourof land through improving of soil chemical, soil physical, and soil microorganism. Therefore, the appropriate technology for processing of maize become organic fertilizer is very important to be diffused or socialized to farmers.Keywords: fertilizer, maize waste

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ANALYSIS FOR POTENCY AND PRODUCTION OF GRANULE ORGANIC FERTILIZER BASED ON MANURE

Jurnal Rekayasa Lingkungan ◽

10.29122/jrl.v7i2.1951 ◽

2018 ◽

Vol 7 (2) ◽

Author(s):

Firman L. Sahwan

Keyword(s):

Organic Material ◽

Organic Materials ◽

Raw Materials ◽

Organic Fertilizer ◽

Raw Material ◽

Cow Manure ◽

Production Potential ◽

Natural Organic Material ◽

Very High

Organic materials that are generally used as raw material for organic fertilizer granules (POG) is a natural organic material that has been degrade, smooth and dry. One of the main raw materials are always used with a very high percentage of usage, is manure. Manure potential in Indonesia is very high, amounting to 113.6 million tons per year, or 64.7 million tons per year to the island of Java. From this amount, it will be generated numbers POG production potential of 17.5 million tons per year (total Indonesia) or 9.9 million tons per year for the island of Java. While the realistic POG production predictions figures made from raw manure is 2.5 million tons annually, a figure that has been unable to meet the number requirement of POG greater than 4 million tons per year. Therefore, in producing POG, it should be to maximize the using of the potential of other organic materials so that the use of manure can be saved. With the use of a small amount of manure (maximum 30% for cow manure), it would be useful also to avoid the production of POG with high Fe content.keywods: organic material, manure, granule organic fertilizer

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Changes of Composition and Amount of Volatile Compounds in Green Tea about Organic Fertilizer and Plucking Seasons

The Korean Tea Society ◽

10.29225/jkts.2020.26.3.13 ◽

2020 ◽

Vol 26 (3) ◽

pp. 13-26

Author(s):

Su Young Kang ◽

So Jin Lee ◽

Yong Hee Kwon ◽

Doo-Gyung Moon ◽

Joon-Kwan Moon ◽

...

Keyword(s):

Volatile Compounds ◽

Green Tea ◽

Organic Fertilizer

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FERTILIZATION SYSTEM AS A WAY OF SOIL FERTILITY AND STABILIZATION OF FIELD CROP ROTATION PRODUCTIVENESS

Vestnik of the Russian agricultural science ◽

10.30850/vrsn/2020/1/38-41 ◽

1970 ◽

pp. 38-41

Author(s):

V. T. Sinegovskaya ◽

E. T. Naumchenko

Keyword(s):

Soil Fertility ◽

Crop Rotation ◽

C:N Ratio ◽

Mineral Fertilizer ◽

Organic Fertilizers ◽

Nitrogen And Phosphorus ◽

Rotation System ◽

Mobile Phosphorus ◽

Crop Rotation System ◽

Fertilizer System

The article presents the results of comparative evaluation of the efficiency of the long-term application of mineral and organic fertilizers in the crop rotation system. It was found that the application of the mineral fertilizer system increased the value of hydrolytic acidity of the soil from 4,30 to 5,29 mg-eq per 100 g of soil, the indicator of metabolic acidity decreased from 5,2 to 4,9 pH units. By the end of the 11th rotation for both fertilizer systems, the content of mobile phosphorus increased by more than 4 times relative to the initial value, its mobility indicator – by 2,2-3,2 times compared with the control. The use of the organo-mineral system was accompanied by an increase in the content of humus by 0,35 % and a decrease in the C:N ratio from 11,2 to 8,9. The increased productivity of wheat was revealed when applying nitrogen and nitrogen-phosphorus fertilizers against the background of prolonged use of the mineral and organo-mineral fertilizer system. The change in wheat productivity by 56 % depended on the content of mineral nitrogen, mobile phosphorus, humus in the topsoil, and on the phosphate ion mobility. Soybean productivity depended on soil fertility indicators only by 24 %: the relationship between soybean productivity and the mineral forms of nitrogen and phosphorus is weak and direct, between productivity and P2O5 mobility - weak and inverse, with humus - moderate and direct.

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Respon Padi Gogo Terhadap Residu Pupuk Organik

Agrotek ◽

10.30862/agt.v3i2.566 ◽

2018 ◽

Vol 3 (2) ◽

Author(s):

Baso Daeng

Keyword(s):

Environmental Sustainability ◽

Upland Rice ◽

Organic Fertilizer ◽

Growing Season ◽

Chicken Manure ◽

Good Effect ◽

Best Response ◽

Different Types ◽

Main Plot ◽

Plot Design

The rate of conversion of paddy fields and irrigation water crisis suggest to consider the development of upland rice.� Empowerment of organic-based dryland done to increase rice, as well as environmental sustainability efforts.� The purpose of this experiment was to determine the effect of organic fertilizer residue to upland rice in the second growing season.� Experiments using a split-split plot design.� The main plot consisted of a dosage of 50% and 100% organic fertilizer in the first growing season.� Sub plot consisted of chicken manure (20 tons ha-1), Centrosema� pubescens (4.3 tons ha-1) + chicken manure (10 tons ha-1), and Thitonia diversifolia (4.3 tons ha-1) + chicken manure (10 tons ha-1).� Sub-sub plot consist of Danau Gaung and Batu Tegi varieties.� The different types of fertilizer had no effect on plant productivity.� The addition of Thitonia diversifolia gave a good effect on some growth variable and its resistance due pathogen attack.� Batu Tegi varieties are varieties that give the best response from an organic fertilizer.� Interaction between dosage, type of fertilizer, and varieties do not provide areal impact.

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Organic fertilizer from restored plant raw material

Visnyk agrarnoi nauky ◽

10.31073/agrovisnyk201908-01 ◽

2019 ◽

Vol 97 (8) ◽

pp. 5-10

Author(s):

Je. Skryl'nyk ◽

A. Kutova ◽

V. Getmanenko ◽

G. Tsygichko

Keyword(s):

Organic Fertilizer ◽

Raw Material ◽

Plant Raw Material

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