scholarly journals Assessment on the coupling effects of drip irrigation and organic fertilization based on entropy weight coefficient model

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3855 ◽  
Author(s):  
Fenglin Zhong ◽  
Maomao Hou ◽  
Bizhu He ◽  
Iouzen Chen

Water and fertilizer are two important factors influencing crop growth, development and yield formation. To investigate their combined effects on the soil-plant system, and to find out the optimal water and organic fertilizer coupling strategy for tomato (Solanum lycopersicum L), an experiment was carried out from May to October in 2016 in the south of China. The experiment consisted of three drip irrigation quotas (150, 180, 210 m3/ha) and three organic fertilizer application amounts (2,800, 3,600, 4,400 kg/ha). A water-fertilizer treatment (abbreviated as CK) that is in line with local practice was used for comparison. The tomato marketable yield, sugar/acid ratio (SAR) and irrigation water use efficiency (IWUE), as well as the soil salinity and available nutrient concentrations were measured. The results showed that the marketable yield was highly significantly (p < 0.01) affected by irrigation or fertilization. The SAR of tomato were significantly (p < 0.05) affected by irrigation or/and fertilization. The fertilization had an highly significant (p < 0.01) effect on the concentrations of soil nutrients (N, P, K), while the coupling effect of irrigation and fertilization was not pronounced. According to the multi-index analysis and the computed result by the entropy weight coefficient model, a 180 m3/ha irrigation quota in combination with 4,400 kg/ha organic fertilizer application amount was the optimal water-fertilizer coupling strategy which owned the most satisfactory comprehensive benefits. The marketable yield, SAR and IWUE under this optimal strategy were 122.4 t/ha, 9.2, 32.4 kg/m3, respectively, and by 28.0%, 29.6% and 28.1% higher compared to that under CK.

2021 ◽  
Vol 74 (3) ◽  
pp. 9643-9653
Author(s):  
Ratih Sandrakirana ◽  
Zainal Arifin

Soybean is known for its high protein content, which is the reason why it is widely used as one of the main food sources for humans and animals. In order to optimize soybean growth, farmers tend to add excessive dosage of chemical fertilizer to this crop. Furthermore, a continuous chemical fertilizer application without organic fertilizer addition may cause a rapid depletion of nutrients in the soil. This study aimed to evaluate the effectiveness of organic fertilizer treatment to reduce the amount of urea as chemical fertilizer needed in soybean cultivation. A complete randomized design was conducted using 21 treatments of organic and chemical fertilizer in triplicate with a 4x3 m plot size. Analysis of variance was carried out to compare the means of measurement data and Duncan multiple range test (DMRT 5%) was applied. The treatment 2,000 kg ha-1 compost + 50 kg ha-1 urea (O2K2A1) resulted the highest dry yield in soybean and had significant differences with urea-only treatment. A mixture of chemical and organic fertilizers had no significant result over the yield compared to the use of chemical fertilizer only. Compost application of 1,000-2,000 kg ha-1 with urea 50-100 kg ha-1 (O2K2A1 and O 2K1A2) showed an increase in seed yield of 35-38 % with a profit reaching 333-340 USD ha-1 compared to standard treatment using urea 50 kg ha -1 + SP-36 50 kg ha-1 + 50 KCl kg ha-1 (O0K0A1).


2021 ◽  
Vol 23 (1) ◽  
pp. 46-52
Author(s):  
Erin Puspita Rini ◽  
Sugiyanta Sugiyanta

[CABBAGE (Brassica olacea var. capitata) GROWTH AND YIELD AFFECTED BY COMBINATION OF ORGANIC AND INORGANIC FERTILIZER APPLICATIONS]. The use of organic fertilizer increasingly sought by farmers due to the increase in demand for organic products by consumers and also awareness of the sustainability of the land. The use of organic fertilizers in the cultivation alone could improve the soil quality but needs to be balanced with inorganic fertilizers to meet the nutrient adequacy. This study aims to examine the effect of organic and inorganic fertilizers combination on the growth and cabbage yield, and also to determine the most efficient dosage combination of organic and inorganic fertilizers. This research was conducted at the IPB Pasir Sarongge Experimental Station, Cianjur, West Java from November 2020 to February 2021. The study was compiled using RCBD with 4 replications and 7 treatments. The results showed the combination of 0.75 doses of inorganic fertilizer (150 kg/ha of urea, 75 kg/ha SP36, and 75 kg/ha KCl) and 3 tons/ha of organic fertilizer could increase 14.87 to 15.44% plant height and the number of leaves at 12.82 -15.11% compared to the same dose of inorganic fertilizer treatment alone. The combination of 1 dose (200 kg/ha of urea, 100 kg/ha SP36, and 100 kg/ha KCl) inorganic fertilizer application and 2 tonnes/ha of organic fertilizer could increase 50,60% yield/plot and yield/ha cabbage than 1 dose of inorganic fertilizer treatment..


Land ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 329
Author(s):  
Yanan Li ◽  
Chengyu Wang ◽  
Tianye Wang ◽  
Yutao Liu ◽  
Shuxia Jia ◽  
...  

Fertilization influences the soil microbiome. However, little is known about the effects of long-term fertilization on soil microbial metabolic pathways. In this study, we investigated the soil microbiome composition and function and microbial participation in the N cycle according to the Kyoto Encyclopedia of Genes and Genomes (KEGG) and gene ontology (GO) functional annotation of different genes in a metagenomic analysis after long-term fertilization. Fertilizer application significantly changed the soil C/N ratio. Chemical fertilizer (NPK) treatment decreased soil pH, and chemical fertilizer combined with straw (NPK+S0.5) treatment increased ammonium nitrogen (NH4+-N) but decreased nitrate nitrogen (NO3−-N). NPK, NPK+S0.5 and S0.5 applications did not change the soil microbiome composition or dominant phylum but changed the relative abundances of microbiome components. Moreover, fertilizer significantly influenced metabolic processes, cellular processes and single-organism processes. Compared with a no-fertilizer treatment (CK), the NPK treatment resulted in more differentially expressed gene (DEG) pathways than the NPK+S0.5 and S0.5 treatments, and these pathways significantly correlated with soil nitrate nitrogen (NO3−-N), available phosphorus (AP) and the moisture content of soil (MC). KEGG analysis found that fertilizer application mainly affected the ribosome, photosynthesis and oxidative phosphorylation pathways. S0.5 and NPK+S0.5 increased microbial nitrogen fixation, and NPK and NPK+S0.5 decreased amoA and amoB and accelerated denitrification. Thus, organic fertilizer increased N fixation and nitrification, and inorganic N fertilizer accelerated denitrification. We found that the function of the soil microbiome under different fertilizer applications could be important for the rational application of fertilizer and for environmental and sustainable development.


AGRIFOR ◽  
2019 ◽  
Vol 18 (1) ◽  
pp. 89
Author(s):  
Ardani Ardani ◽  
Akas Pinaringan Sujalu

Effect of Nasa Liquid Organic Fertilizer and NPK Mutiara Fertilizer on the Growth and Yield of Tomato (Lycopersicum esculentum Mill.) Servo F1 Variety. The purpose of the research is to study the effect of Nasa liquid organic fertilizer and NPK Mutiara fertilizer and its interaction on the growth and yield of tomato, as well as to find the proper concentration of Nasa liquid organic fertilizer and dosage of NPK Mutiara fertilizer for obtaining the best yield of tomato.The research was conducted for three months from February to April 2017, from the time of seed preparation, land preparation until harvest time. It was carried out in Pinang Village, Samarinda Ulu Regency, East Kalimantan Province.The research was conducted using Completely Randomized Design (CRD) in 4 x 4 Factorial Experiment and three replications.  The first factor was the concentration of Nasa liquid organic fertilizer (P) consisting of 4 levels : no Nasa liquid organic fertilizer application (p0), 1 ml/l water  (p1), 2 ml/l water (p2), and 3 ml/l air (p3).   The second factor was the dosage of NPK Mutiara fertilizer (N) consisting 4 levels : no NPK Mutiara fertilizer application (n0), 5 g/polybag (n1),  10 g/polybag (n2), and 15 g/polybag (n3).The results showed that Nasa liquid organic fertilizer, NPK Mutiara fertilizer treatment its interaction affected very significantly on the plant height at age 15, 30 and 45 days after planting, age of plants flowered, age of plant harvested, number of fruits per plant, and weight of fruits per plant; and the weighest weight of fruits per plant was produced in 2 ml/l water POC Nasa and 10 g/polybag of NPK Mutiara fertilizer (p2n2) treatment of 840,00 g/plant, while the lighest one was produced in 1 ml/l water POC Nasa and no NPK Mutiara fertilizer (p1n0) treatment of 300,00 g/plant


AGRIFOR ◽  
2018 ◽  
Vol 17 (1) ◽  
pp. 89
Author(s):  
Emiliana Lidya ◽  
Noor Jannah, Abdul Rahmi

The research objective were to study the effect of compost fertilizer and Nasa liquid organic fertilizer (POC Nasa) and its interaction on the growth and yield of cucumber and also to find the proper dosage of compost fertilizer and POC Nasa concentration for obtaining the best growth and yield of cucumber.The research used Completely Randomized Design (CRD) in 4 x 4 Factorial Experiment and three replications.  The factor was the dosage of compost fertilizer (K) consisting of 4 levels : no compost fertilizer application (k0), 48 g polybag-1(k1), 64 g polybag-1 (k2); and 80g polybag-1(k3).   The second factor was the concentration of POC Nasa (D) consisting 4 levels : no POC Nasa application (d0), 1 ml l-1water (d1),  2 ml l-1water (d2), and 3 ml l-1water (d3).The results showed that: (1) the compost fertilizer treatment affected significantly on the weight of one fruit and the weight of fruit per plant, it affected very significantly on the plant lenght at age 15 and 30 days after planting, and fruit diameter, but it did not affect significantly on the number of fruit per plant.  The best production was produced at 48 g polybag-1 (k1) treatment of 3,77 kg plant-1, while the least one was produced at the 80 g polybag-1 (k3) treatment of 3,06 kg plant-1; (2)the POC Nasa treatment affected significantly on the weight of one fruit; and it affected very significanly on the plant lenght at age 30 days after planting and fruit diameter, but it did not affect significantly on the plant lenght at age 15 days after planting, number of fruit per plant, and fruit weight per plant;  and (3) the interaction treatment between compost fertilizer and POC Nasa affected significantly on the weight of one fruit and affected very significantly  on the fruit diameter, but did not affect significantly on the plant lenght at age 15 and 30 after planting, the number of fruit and fruit weight per plant.


2020 ◽  
Vol 48 (3) ◽  
pp. 268-274
Author(s):  
Anas Dinurrohman Susila ◽  
Adea Oktavia ◽  
Bartolomeus Varian Yuliharsa Wirabawana

Chili (Capsicum frutescens L.) has an important role in Indonesian cuisine. Conventional crop management with less-efficient fertilizer application was still commonly implemented by farmers; on the other hand, fertilizer application through fertilizer will increase yield and reduce production costs. Research objectives were to find out the best fertilizer application methods through drip irrigation and obtain a nitrogen fertilizer source that can increase polyethylene mulched chili yield. This research was conducted in Inceptisol (Dytropept Fluventik, Isohiperthermik) soil type. The experiment was conducted at Bogor Agricultural University Research Station, Cikarawang, from June to December 2016. The first experiment was arranged in a randomized complete block design (RCBD) with three methods of fertilizer applications: split, drip, and conventional (no fertigation). The second experiment, from March to October 2017, was arranged in RCBD, with three N sources (Urea (46% N), ZA (21% N), and NPK (16-16-16)% N-P2O5,-K2O), with four replications. Results showed that split and drip fertigations had no different effect on total and marketable yield; however, the yields of both treatments were higher than that of conventional applications. The second experiment results showed that all N sources did not affect the growth and yield of chili.Keywords: fertilization, nitrogen, micro-irrigation, polyethylene mulch


2020 ◽  
Vol 30 (2) ◽  
pp. 176-184 ◽  
Author(s):  
Natalie Yoder ◽  
Jessica G. Davis

Selecting supplemental nitrogen (N) fertilizer for use on certified organic farms can be difficult and confusing. There are many options commercially available to farmers with similar N concentrations but widely different ingredients. Experiments were conducted in a certified organic field and high tunnels near Fort Collins, CO in 2013 and 2014 to evaluate the impact of organic fertilizers on yield and nutrient concentrations of three kale (Brassica oleracea and Brassica napus) cultivars. This study includes an organic fertilizer (cyano-fertilizer), which is produced on-farm by growing N-fixing cyanobacteria (Anabaena cylindrica) in raceway ponds. The three fertilizer treatments were hydrolyzed fish emulsion, alfalfa (Medicago sativa) meal, and cyano-fertilizer. These were applied at rates calculated by subtracting soil nitrate concentration from a target 50 mg·kg−1 to the depth of 6 inches of soil. Cyano-fertilizer and hydrolyzed fish emulsion were applied in liquid form, while the alfalfa meal was incorporated dry into the soil before planting. Biweekly measurements of plant height were taken on three cultivars of kale: Dinosaur, Red Russian, and Winterbor. Leaf weight, leaf area, and N, iron (Fe), and zinc (Zn) concentrations were measured during three to four monthly harvests each year. Organized in a split-plot experimental design, there were three treatment replications with subplots of different kale cultivars. Fertilizer treatment did not significantly affect plant height, leaf weight, leaf area, or plant N, Fe, and Zn concentrations. However, there were cultivar differences in plant height, leaf area, and yield. Kale cultivar choice had a larger impact on yield and plant nutrient concentrations than fertilizer choice, because fertilizers were applied at similar N rates.


Author(s):  
Xuân Lý Ngọc Thanh ◽  
◽  
Thúc Lê Vĩnh ◽  
Nguyên Phan Chí ◽  
Hải Thái Thanh ◽  
...  

The objective of this study was to evaluate the effects of supplementation of lime and microbial organic fertilizer on the growth, yield and economic efficiency of watermelon. The experiment was carried out on the acid sulfate soil in Phung Hiep district, Hau Giang province, arranged in a randomized complete block design with four treatments and three replicates, in which treatment NT1 was application of fertilize according to farmers, without lime and microbial organic fertilizer, treatment NT2 was supplementation of 800 kg of lime/ha; treatment NT3 was supplementation of 2,000 kg of microbial organic fertilizer/ha; treatment NT4 was supplementation of 800 kg of lime in combination with 2,000 kg of microbial organic fertilizer/ha. The results showed that lime supplementation combined with microbial organic fertilizer increased the yield of watermelon compared to alone application of lime or microbial organic fertilizer, and the income was increased by 13.8%, compared to fertilizer application of farmer without supplementation of lime or microbial organic fertilizer. To increase yield and income of watermelon on acid sulfate soils, it is recommended that 800 kg of lime should be applied in combination with 2,000 kg of microbial organic fertilizer/ha.


2020 ◽  
Vol 112 (1) ◽  
pp. 608-623
Author(s):  
Fayong Li ◽  
Chengyu Yuan ◽  
Dongqing Lao ◽  
Baolin Yao ◽  
Xuefei Hu ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document