scholarly journals Evaluation of Composted Cattle Manure Rate on Bulb Onion Grown with Reduced Rates of Chemical Fertilizer

2012 ◽  
Vol 22 (6) ◽  
pp. 798-803 ◽  
Author(s):  
Jongtae Lee
Keyword(s):  
Soil Fertility ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Application Rate ◽  
Chemical Fertilizer ◽  
Cattle Manure ◽  
Growth And Yield ◽  
Marketable Yield ◽  
Linear Effect ◽  
Fertilizer Application Rate

A field experiment was conducted to evaluate yield performance and soil fertility of onion (Allium cepa) grown with beef cattle manure compost (CMC) under a reduced rate of chemical fertilizer for sustainable production in the 2006–07 growing season. Chemical fertilizer application rate was reduced to a third of the recommended rate of nitrogen (N), phosphorus (P), and potassium (K). Treatments consisted of five levels of CMC (0, 20, 40, 60, and 80 Mg·ha−1). There was a significant increasing effect on growth and yield parameters by applying CMC compared with 0 Mg·ha−1. In addition, there was also a significant increasing quadratic effect on yield on increasing CMC rates from 0 to 80 Mg·ha−1 with an R2 of 0.46. Maximum marketable yield was 62.7 Mg·ha−1 at 40 Mg·ha−1 CMC, which was due to increased stand reduction and unmarketable bulbs as well as decreased bulb weight at higher rates of CMC. The CMC rates had no effect on bulb dry weight and N or P concentration in the bulb and leaf. Furthermore, there was an increasing linear effect on soil pH, and organic matter (OM), available P, and exchangeable cations throughout vegetative growth and at harvest. We concluded that the excessive application of CMC did not affect onion yield and accumulated soil fertility.

scholarly journals Growth and Yield Variability of Corn (Zea mays), Carrot (Daucus carota), Peas (Pisum sativum) and Potatoes (Solanum tuberosum) Grown in Fallow and Unfallow Standoff Alberta Community Garden Soils

2020 ◽  
Vol 12 (2) ◽  
pp. 15
Author(s):  
Adebusoye O. Onanuga ◽  
Roy Weasel Fat
Keyword(s):  
Growth Parameters ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Application Rate ◽  
Growth And Yield ◽  
Community Garden ◽  
Yield Data ◽  
Fertilizer Application Rate ◽  
Fallow Soil ◽  
Summer Time

An experiment was conducted in the Standoff Alberta community garden over the 2019 summer time. Fallow and unfallow soils of Standoff community were used for this experiment. The major nutrients Nitrogen (N) was deficient and Phosphorus (P) was low in the unfallow soil. Furthermore, fallow soil N nutrient was low and optimum for P. Soil potassium was in excess for both soils. The pH of the soils were 7.4 and 7.5 in fallow soil and unfallow soil, respectively. One level of fertilizer application rate was applied to fallow and unfallow soils. Corn, carrots and peas were planted to unfallows soil while potatoes plants were cultivated to fallow soil. Standard agronomic practices were followed to establish this experiment. The six plants were taken per square meter bi-weekly in all the locations randomly across the field in zigzag pattern for growth parameters while six plants for corn, 2 plants for peas, carrots and potatoes per square meter were harvested for yield parameters. The means of growth and yield data collected from each location were subjected to a simple t-test so as to compare the performance of crops planted in each location. The results obtained showed that there were differences of growth in different locations across the field. Moreover, heterogeneous nature of the soil in different locations influenced soil nutrients ability to favour yield of corn, carrots, peas and potatoes. However, in all the 6 locations on the field, peas pod numbers at week 4, potatoes tuber number at week 5, peas dry weight at week 4 and carrot dry weight at week 5 were insignificant, all look the same. These results suggest that application of fertilizers and shortage of water were not evenly distributed which lead to uneven yield in different locations across the field.

scholarly journals Excessive Application of Fertilizer, Agricultural Non-Point Source Pollution, and Farmers’ Policy Choice

2019 ◽  
Vol 11 (4) ◽  
pp. 1165 ◽  
Author(s):  
Haixia Wu ◽  
Yan Ge
Keyword(s):  
Point Source ◽  
Organic Fertilizer ◽  
Fertilizer Application ◽  
Application Rate ◽  
Chemical Fertilizer ◽  
Shaanxi Province ◽  
Annual Growth Rate ◽  
Point Source Pollution ◽  
Fertilizer Application Rate ◽  
Non Point Source Pollution

This paper takes 516 households who planted wheat in Heyang County, Shaanxi Province in 2018, as samples to construct three policy environments: Technological guidance for planting, subsidies for organic fertilizer application, and agricultural tailwater discharge standards. The experimental choice method was used to empirically analyze policy preferences during the process of fertilizer reduction. The results indicate that households show different preferences for the three policy settings: The fertilizer application rate is reduced by 6.98% if providing full technological guidance for farmers throughout the wheat planting process and is reduced by 5.18% under the background of providing appropriate organic fertilizer subsidies. The agricultural tailwater discharge standards have the least impact on the reducing level of chemical fertilizer application, with decreasing amounts of only 1.85% and 0.77% under the second-level and the first-level agricultural tailwater discharge standards, respectively. These results indicate that households in Heyang County, Shaanxi Province, demonstrate a low willingness to accept the agricultural tailwater discharge standards in order to cut down on the amount of chemical fertilizer application and the agricultural non-point source pollution. Therefore, compared with a compounded annual growth rate (CAGR) of 1% of fertilizer usage nationwide according to the Chinese Ministry of Agriculture, given the current planting environment and policies design, providing comprehensive technological guidance as well as price subsidies for the organic fertilizer can significantly and robustly reduce the excessive application of fertilizer in Heyang County, Shaanxi Province, under the best scenario, thereby further alleviating agricultural non-point source pollution.

scholarly journals Effect of Combined Fertilization on Plant Biomass of Waste Land and Comprehensive Benefit Evaluation in Grassland Mining Area

2020 ◽  
Vol 165 ◽  
pp. 03057
Author(s):  
Dan Shan ◽  
Jingli He ◽  
Hao Rong ◽  
Tiegang Zhang
Keyword(s):  
Soil Fertility ◽  
Plant Biomass ◽  
Organic Fertilizer ◽  
Mining Area ◽  
Fertilizer Application ◽  
Application Rate ◽  
Vegetation Restoration ◽  
Ratio Method ◽  
Dump Site ◽  
Fertilizer Application Rate

The dump site formed by the large-scale open-pit coal mining waste piles has poor soil environment and difficult vegetation restoration, and is in the grassland area with relatively weak ecological environment. A completely randomized block design was used to conduct separate application of microbial fertilizer and the combined application of microbial fertilizer and organic fertilizer in this study. The results showed that “Sino Green Agri-Biotech” soil conditioner combined with organic fertilizer had a higher plant biomass by comparing different fertilization methods, the plant biomass increased with the increase of microbial fertilizer application. The RSR (Rank Sum Ratio) method was used to analyze the comprehensive benefits of different fertilization methods from the aspects of microbial community diversity, soil enzyme activity, soil fertility, vegetation growth status and economic benefits. Evaluation results showed that application of microbial fertilizer had an important role in increasing soil fertility and accelerating vegetation construction the combined benefit of E-2001 microbial fertilizer application rate of 0.60 ml/m2 and organic fertilizer was the highest, priority can be given to the process of ecological restoration on coal mine dump in grassland. It is preferred to use a combination of E-2001 microbial fertilizer application rate of 0.60 ml/m2 and organic fertilizer in the soil improvement process of vegetation restoration and reconstruction in the grassland mining area.

IMPACT OF FERTILIZERS APPLICATION ON SEED GERMINATION AND SEEDLING GROWTH OF VIGNA RADIATA

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
SUPRIYA DIXIT ◽  
R. K. GUPTA
Keyword(s):  
Seed Germination ◽  
Leaf Area ◽  
Seedling Growth ◽  
Vigna Radiata ◽  
Agricultural Research ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Research Field ◽  
Chemical Fertilizer ◽  
Seedling Length

Currently, a real challenge for the workers in the agricultural research field is to stop or reduce the use of expensive agrochemicals/ chemical fertilizers which are hazardous to the environment as well as human health. Present study was aimed to improve the growth and obtain optimum yield of Vigna crop with eco-friendly, non-toxic way and to reduce the use of agrochemical/chemical fertilizer application in agricultural activities. A pot experiment was conducted to study the effect of chemical fertilizer (DAP) and biofertilizer ( Rhizobium strain) separately and in combination on seed germination and seedling growth (at 30 days) based on morphological parameters such as seedling length (cm), fresh weight (g), dry weight (g) and leaf area (cm)2 of Vigna radiata (L.) Wilczek. After one month (30 Days) observations, it was found that seedling length, fresh and dry weights and leaf area were maximum in T4 and minimum in T15, T7 and T8 favored improved seedling length and leaf area whereas T7, T8, and T9 favored improved fresh and dry weights as compared to control.

scholarly journals Nitrogen Leaching and Nitrogen Balance under Differing Nitrogen Fertilization for Sugarcane Cultivation on a Subtropical Island

Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 740
Author(s):  
Ken Okamoto ◽  
Shinkichi Goto ◽  
Toshihiko Anzai ◽  
Shotaro Ando
Keyword(s):  
N Uptake ◽  
Fertilizer Application ◽  
Application Rate ◽  
N Fertilizer ◽  
N Leaching ◽  
N Recovery ◽  
N Application ◽  
Fertilizer Application Rate ◽  
Sugarcane Yield ◽  
Cropping Seasons

Fertilizer application during sugarcane cultivation is a main source of nitrogen (N) loads to groundwater on small islands in southwestern Japan. The aim of this study was to quantify the effect of reducing the N fertilizer application rate on sugarcane yield, N leaching, and N balance. We conducted a sugarcane cultivation experiment with drainage lysimeters and different N application rates in three cropping seasons (three years). N loads were reduced by reducing the first N application rate in all cropping seasons. The sugarcane yields of the treatment to which the first N application was halved (T2 = 195 kg ha−1 N) were slightly lower than those of the conventional application (T1 = 230 kg ha−1 N) in the first and third seasons (T1 = 91 or 93 tons ha−1, T2 = 89 or 87 tons ha−1). N uptake in T1 and T2 was almost the same in seasons 1 (186–188 kg ha−1) and 3 (147–151 kg ha−1). Based on the responses of sugarcane yield and N uptake to fertilizer reduction in two of the three years, T2 is considered to represent a feasible fertilization practice for farmers. The reduction of the first N fertilizer application reduced the underground amounts of N loads (0–19 kg ha−1). However, application of 0 N in the first fertilization would lead to a substantial reduction in yield in all seasons. Reducing the amount of N in the first application (i.e., replacing T1 with T2) improved N recovery by 9.7–11.9% and reduced N leaching by 13 kg ha−1. These results suggest that halving the amount of N used in the first application can improve N fertilizer use efficiency and reduce N loss to groundwater.

Effects of Giant Burreed (Sparganium eurycarpum) and Shade on Wild Rice (Zizania palustris)

Weed Science ◽  
1987 ◽  
Vol 35 (5) ◽  
pp. 640-646 ◽  
Author(s):  
Sharon A. Clay ◽  
Ervin A. Oelke
Keyword(s):  
Wild Rice ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Shoot Density ◽  
Growth And Yield ◽  
Zizania Palustris ◽  
Major Mechanism ◽  
Panicle Number ◽  
In The Wild ◽  
Sparganium Eurycarpum

Studies were conducted at Grand Rapids, MN, to determine the effect of giant burreed (Sparganium eurycarpumEngelm. # SPGEU) planted at 6, 12, and 24 corms/m2on wild rice (Zizania palustrisL. ‘K2′) growth and yield. Giant burreed, a spreading perennial, had shoot densities of 21, 29, and 42/m2at harvest for the 6, 12, and 24 corms/m2treatments, respectively. Wild rice yield and panicle number were reduced approximately 60% when giant burreed shoot density was 40/m2or higher when compared to the weed-free control. Giant burreed did not interfere with nutrient uptake of wild rice on a whole-plant basis, and increased N fertilizer application did not reduce losses in dry weight. Giant burreed reduced penetration of photosynthetically active radiation (PAR) from 2 to 35% in the wild rice canopy from the early tillering to the anthesis stage of wild rice development. In growth chamber studies, wild rice dry weight and panicle number were reduced by 46 and 65%, respectively, when wild rice was shaded for 12 weeks and compared to a full light treatment. Reduction of PAR penetration into the wild rice canopy appears to be the major mechanism of giant burreed interference with wild rice.

scholarly journals The Effects of Biofertilizers on Growth, Soil Fertility, and Nutrients Uptake of Oil Palm (Elaeis Guineensis) under Greenhouse Conditions

Processes ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 1681
Author(s):  
Aaronn Avit Ajeng ◽  
Rosazlin Abdullah ◽  
Marlinda Abdul Malek ◽  
Kit Wayne Chew ◽  
Yeek-Chia Ho ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Nutrient Uptake ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Combined Treatment ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Fertilizer Application ◽  
Chemical Fertilizer ◽  
Greenhouse Study

The full dependency on chemical fertilizers in oil palm plantation poses an enormous threat to the ecosystem through the degradation of soil and water quality through leaching to the groundwater and contaminating the river. A greenhouse study was conducted to test the effect of combinations of biofertilizers with chemical fertilizer focusing on the soil fertility, nutrient uptake, and the growth performance of oil palms seedlings. Soils used were histosol, spodosol, oxisol, and ultisol. The three treatments were T1: 100% chemical fertilizer (NPK 12:12:17), T2: 70% chemical fertilizer + 30% biofertilizer A (CF + BFA), and T3: 70% + 30% biofertilizer B (CF + BFB). T2 and T3, respectively increased the growth of oil palm seedlings and soil nutrient status but seedlings in oxisol and ultisol under T3 had the highest in almost all parameters due to the abundance of more efficient PGPR. The height of seedlings in ultisol under T3 was 22% and 17% more than T2 and T1 respectively, with enhanced girth size, chlorophyll content, with improved nutrient uptake by the seedlings. Histosol across all treatments has a high macronutrient content suggesting that the rate of chemical fertilizer application should be revised when planting using the particular soil. With the reduction of chemical fertilizer by 25%, the combined treatment with biofertilizers could enhance the growth of the oil palm seedlings and soil nutrient properties regardless of the soil orders.

scholarly journals Application of Dosage Combinations of Evagrow Biofertilizer and Chemical Fertilizer on Soil Characteristics, Growth and Yield of Rice

2017 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
I Nyoman Merit ◽  
I Wayan Narka ◽  
Tatiek Kusmawati
Keyword(s):  
Oryza Sativa ◽  
Block Design ◽  
Fertilizer Application ◽  
Soil Characteristics ◽  
Chemical Fertilizer ◽  
Growth And Yield ◽  
Chemical Fertilizers ◽  
Yield Parameters ◽  
Randomized Block Design ◽  
Biological Fertilizer

Research on the effect of dosage combination of Evagrow bio-fertilizer and chemical fertilizers on soil properties, growth and yield of rice has been carried out in the glasshouse, Faculty of Agriculture, Udayana University using factorial experiment with a Randomized Block Design (RBD). The first factor is Evagrow bio-fertilizer in 3 level, i.e. E0 (without bio-fertilizers), E1 (5 g bio-fertilizer/L) E2 (10 grams bio-fertilizer/L). The second factor is chemical fertilizer, which consists of 3 levels: K0 (without chemical fertilizers), K1 (150 kg Urea/ha + 75 kg SP36/ha + 37.5 kg KCl/ha), K2 (300 kg Urea/ha + 150 kg SP36/ha + 75 kg KCl/ha). The results showed that chemical fertilizers give a significant and very significant effect on most of the rice growth and yield parameters. The application of chemical fertilizers K1 and K2 increased yield of dry grain harvest to 52.87% and 102.54% compared to controls.  Application of Evagrow bio-fertilizer did not significantly increase growth and yield of rice. There is no interaction between chemical fertilizers and Evagrow bio- fertilizer.  Similarly to some of the soil characteristics, biological fertilizer and chemical fertilizer application did not show significant effect on most of the soil characteristics, except on salt levels.Keywords: Evagrow Biofertilizer, Inorganic Fertilizer, Oryza Sativa

Rice Response to Phosphorus Fertilizer Application Rate and Timing on Alkaline Soils in Arkansas

2002 ◽  
Vol 94 (6) ◽  
pp. 1393-1399 ◽  
Author(s):  
Nathan A. Slaton ◽  
Charles E. Wilson ◽  
Richard J. Norman ◽  
Sixte Ntamatungiro ◽  
Donna L. Frizzell
Keyword(s):  
Fertilizer Application ◽  
Application Rate ◽  
Alkaline Soils ◽  
Phosphorus Fertilizer ◽  
Fertilizer Application Rate

scholarly journals Dynamics of the Fertilizer Value Chain in Mozambique

2020 ◽  
Vol 12 (11) ◽  
pp. 4691
Author(s):  
Helder Zavale ◽  
Greenwell Matchaya ◽  
Delfim Vilissa ◽  
Charles Nhemachena ◽  
Sibusiso Nhlengethwa ◽  
...  
Keyword(s):  
Value Chain ◽  
Agricultural Productivity ◽  
Fertilizer Application ◽  
Application Rate ◽  
Demand And Supply ◽  
Fertilizer Use ◽  
Fertilizer Value ◽  
Crop Uptake ◽  
Fertilizer Application Rate ◽  
Side Constraints

Mozambique is characterized by low agricultural productivity, which is associated with low use of yield-enhancing agricultural inputs. Fertilizer application rate averaged 5.7 kg ha−1 in Mozambique during the period 2006 to 2015, considerably low by regional targets, yet constraints that affect fertilizer use have not been thoroughly investigated. This study examined the constraints on fertilizer value chains in Mozambique to contribute to fertilizer supply chain strengthening. We used a combination of multivariate analysis and descriptive methods. Our findings indicate that fertilizer use has both demand and supply constraints. Key demand-side constraints include liquidity challenges, limited awareness about the benefits of using fertilizer, and low market participation, while the main supply-side constraints include high transaction costs, limited access to finance, and lack of soil testing results and corresponding fertilizer recommendations by soil type and crop uptake. These results suggest that scaling up the input subsidy program through vouchers (either paper-based vouchers or e-vouchers) with demonstration plots and effective targeting could drive up smallholders’ demand for fertilizer and fertilizer supply by strengthening a sustainable network of wholesalers and retailers. This would likely boost agricultural productivity.

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