Roles of different fertilizer management practices on mulberry leaf yield and quality

Ahmed, Faruque; Sultana, Rafia; Ahmed, Oli; Akhtaruzzaman, Md.; Iqbal, Md. Toufiq

doi:10.25165/j.ijabe.20171005.2268

Cited by 4 publications

(3 citation statements)

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“…Li et al [58] found that an appropriate ratio of basal fertilizer could delay the senescence of cotton leaves and ensure the formation of photosynthetic products in the later stages of cotton growth, improving cotton production. The basal application ratio of the nitrogen fertilizer and the NFA amount showed a similar change trend (Figure 4).…”

Section: Effect Of Planting Management Factors On Cottonmentioning

confidence: 99%

Effects of nitrogen fertilizer application on saline-alkali land cotton in China quantified using meta-analysis and regression analysis

Yang,

Liu,

Gong

et al. 2023

International Journal of Agricultural and Biological Engineering

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Nitrogen fertilizer application is an important means to promote cotton production in saline-alkali land. A metaanalysis and regression analysis of 49 peer-reviewed studies were conducted using yield data (373 data points), dry matter accumulation (114 data points), and water use efficiency (157 data points) to quantify the effect of nitrogen fertilizer on the yield, dry matter accumulation, and water use efficiency of cotton in saline-alkali land in China for different planting management practices and different growing environments. The results showed that the nitrogen application significantly improved the yield, dry matter accumulation, and water use efficiency by 34.11%, 36.27%, and 33.87%, respectively, compared with no nitrogen application. The largest improvements in the yield, dry matter accumulation, and water use efficiency occurred in areas where saline-alkali land had been improved for many years, in Eastern China, South Central China, and Northwest China (areas with annual average precipitation ≤200 mm or >800 mm, and annual average evaporation ≤800 mm or >2400 mm), in areas with trickle irrigation, and fields with a planting density of 100 000 to 250 000 plants/hm 2 . Cotton exhibited the optimal response to nitrogen application at a rate of 300-375 kg/hm 2 , a basal application ratio of 20%-40%, and top-dressing in the cotton bud, flowering boll, and full boll stages. The effect of nitrogen application increased as the salinity increased. A suitable nitrogen application rate, top-dressing ratio, and top-dressing period are crucial for increasing cotton production in saline-alkali land, although environmental differences and planting measures have to be considered. This study provided information on the correct application of nitrogen fertilizer to maximize its benefits and suggests controlling nitrogen fertilizer inputs in agriculture to protect the soil environment and ensure sustainable agricultural development.

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Section: Effect Of Planting Management Factors On Cottonmentioning

confidence: 99%

Effects of nitrogen fertilizer application on saline-alkali land cotton in China quantified using meta-analysis and regression analysis

Yang,

Liu,

Gong

et al. 2023

International Journal of Agricultural and Biological Engineering

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“…During the "Twelfth Five-Year Plan" period, Chinese agricultural sector clearly defined the basic goal of "One Regulatory, Two Reduction and Three Basic", and actively built a supporting green output increase model around the target agricultural sectors at all levels [1][2][3][4] . Among them, the goal of reducing chemical fertilizer application is to achieve zero growth of chemical fertilizer application by 2020, improve the nutrient utilization rate of food production, soil fertility and comprehensive benefits, and achieve green and sustainable food production development of reducing weight and increasing efficiency in food production, increasing fertility and "storing grain on the ground".…”

Section: Introduction mentioning

confidence: 99%

Effects of background fertilization followed by co-application of two kinds of bacteria on soil nutrient content and rice yield in Northeast China

Sun

Liu

Wu³

et al. 2020

International Journal of Agricultural and Biological Engineering

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With the improvement of living standards, people pay more and more attention to the quality and safety of rice. Microbial agents are favored by the public because they can activate the nutrient supply in the soil, and reduce the residue and application amount of chemical fertilizers and pesticides. Based on the conventional fertilization in the field, Bacillus mucilaginosus and Aspergillus niger were applied, Bacillus mucilaginosus was inoculated at four levels in the paddy soil in the cold region of Heilongjiang Province of China. The effects of different proportions of Bacillus mucilaginosus and Aspergillus niger on the number of soil microorganisms, enzyme activity, microbial biomass, soil biochemical intensity, soil nutrient content, plant nutrient content and yield were studied, and the effects on the plant nutrient content of rice and the nutrient dynamics were discussed. The results showed that a 2.62%-21.20% higher yield of rice obtained from co-application treatments compared with that of the control-blank treatment. Furthermore, the highest yield obtained (10736±65 kg/hm 2) suggested that the optimized values for the two bacteria applied were 120×10 11 CFU/hm 2 for Bacillus mucilaginosus and 15×10 11 CFU/hm 2 for Aspergillus niger. Bacillus mucilaginosus can decompose minerals in soil, dissolve potassium and silicon, decompose apatite and release phosphorus into soil. Aspergillus niger can transform the phosphate which cannot be absorbed by plants into soluble phosphate which can be directly absorbed by plants by producing non-volatile acids. In particular, Bacillus mucilaginosus and Aspergillus niger have synergistic effect, and their combined application effect is greater than that of two bacteria alone. Co-application promoted the release of soil soluble silicon, and then increased the silicon content of plants. At the same time, soil microorganism, microbial biomass, enzyme activity and biochemical activity all increased significantly. This study provides an effective way to reduce the amount of chemical fertilizer applied in rice production in cold regions of China.

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“…If the starting/ending time is too long, a pricking hole mechanism which matches the distributor will spray fertilizer on the soil surface due to earlier spraying time, which wastes the fertilizer and pollutes the environment. On the contrary, longer starting time or ending time will make the insufficient fertilizing amount, therefore less fertilizers will be absorbed by the crops and the production will be correspondingly reduced [9][10][11] .…”

Section: Introductionmentioning

confidence: 99%

Structure optimization of cam executive component and analysis of precisely applying deep-fertilization liquid fertilizer

Zhou

Wang

Tang

2019

International Journal of Agricultural and Biological Engineering

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Since there are some problems in the previous cam of deep-fertilization liquid fertilizer applicator, such as poor precision and low-fertilization performance, a method of the contour line of a cam was proposed based on Matlab GUI development platform. Bernoulli' equation between the liquid fertilizer and the pressure valve of the fertilizer-spraying needle was founded. Moreover, the motion angles of a rise travel and return travel were corrected and the corresponding parameters of the contour line of the cam were obtained. Equations of cam moving from rise travel to return travel were derived according to the simple harmonic motion. In addition, 3D model of cam was established by applying the Pro/E software and the rationality of the cam design was verified. The static analysis of the cam was carried out under working conditions and the corresponding dynamics analysis was performed based on D'Alembert's principle. And then relationships between the binding force and the drag torque were obtained. A bench test indicates that when the pressure of a hydraulic pump is 0.5 MPa and the velocity of a output shaft is 50 r/min, the average consumption of the fertilizer is 19.7 mL for each measurement, which meets the corresponding agronomic requirement, i.e. 20 mL. When the rotation angle of the cam is 8.6° and the rise displacement of a plunger is 0.84 mm, the mouth of the fertilizer-spraying needle sprayed liquid fertilizer as soon as it got into the soil and stopped spraying as soon as it got out of the soil. The results show that the designed contour line of the cam meets the requirement, that is, the mouth of the fertilizer-spraying needle should spray liquid fertilizer as soon as it gets into the soil and stop spraying as soon as it gets out of the soil, which meets the agronomic requirements, that is, fertilizer should be sprayed deeply and precisely. And this study lays a theoretical foundation for designing the cam of intermittent type distributor and provides relevant parameters.

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Roles of different fertilizer management practices on mulberry leaf yield and quality

Cited by 4 publications

References 0 publications

Effects of nitrogen fertilizer application on saline-alkali land cotton in China quantified using meta-analysis and regression analysis

Effects of nitrogen fertilizer application on saline-alkali land cotton in China quantified using meta-analysis and regression analysis

Effects of background fertilization followed by co-application of two kinds of bacteria on soil nutrient content and rice yield in Northeast China

Structure optimization of cam executive component and analysis of precisely applying deep-fertilization liquid fertilizer

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