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The Multivariate Analysis of Foliar Fertilization by Using Random Forest for Improving Alliin Concentration of Garlic (Allium sativum l.)
Qiang Shi,
Xuxin Liu,
Tursunay Dilxat,
Jun Zhang,
Qing Hao
Issue:
Volume 4, Issue 3, May 2018
Pages:
52-59
Received:
7 May 2018
Accepted:
30 May 2018
Published:
26 July 2018
Abstract: This study was for analyzing significance and optimum proportion of components in foliar fertilizer, which aimed on improving alliin concentration of garlic (Allium sativum l.) in field condition. The Study with designed experiments implemented with uniform experimental design method U30 (3013) (D=0.1926). Alliin concentration from garlic clove was measured by HPLC, the analysis of data set engaged by Random Forest for components significance test and optimal formula calculation. The results shown that the RF is an appropriate choice for this kind of study; the top 3 important components of foliar fertilizer were: Glutathione, Ethanethiol and Mg2+; the application of foliar fertilizer with optimal combination of components had significant effects on improving alliin concentration in garlic clove; there was synergistic interaction between components, combination of different elements can get much better effects. The maximal data of alliin concentration in garlic clove from experiment results obtained 3.5% (mg/g) of fresh weight far more than control 1.5%.
Abstract: This study was for analyzing significance and optimum proportion of components in foliar fertilizer, which aimed on improving alliin concentration of garlic (Allium sativum l.) in field condition. The Study with designed experiments implemented with uniform experimental design method U30 (3013) (D=0.1926). Alliin concentration from garlic clove was...
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Soil Chemical Characterization and Fertility Status in Selected Irrigation Schemes in Unguja and Pemba Isles, Zanzibar
Halima Mmbaga,
Joachim HJR Makoi
Issue:
Volume 4, Issue 3, May 2018
Pages:
60-70
Received:
8 June 2018
Accepted:
27 June 2018
Published:
30 July 2018
Abstract: A survey was undertaken to assess the soil chemical properties and fertility status in selected irrigation schemes in Unguja and Pemba Isles in October, 2017 during the short rainy seasons. These schemes include Dobi, Kwalempona, Machigini and Ole in Pemba and Bandamaji, Kibonde Mzungu, Koani, Mchangani and Mtwango in Unguja. Soil sampling was done after the soils were grouped into similar pedons following pedogeomorphic approach whereby fifteen and ten mapping units were delineated in Pemba and Unguja respectively. Using zigzag sampling techniques, nineteen composite samples were collected in quadruplicate at a depth of 0 – 30 cm from the delineated pedogeomorphic units at a radius of 20 m around the soil pits. Soil samples were bulked, thoroughly mixed, sub sampled to obtain a representative sample, packed and sent to NSS laboratory for analysis. The results showed significant difference in fertility status in the selected irrigation schemes. The pH was rated as neutral to strongly acid and or very strongly acid. Of the 25 surveyed mapping units (MUs), 47% were rated as medium acid, 26% as strongly acid, 11% as slightly acid and neutral and 5% as very strongly acid. Per cent OC was high in 21%, medium in 63% and low in 16%. In Machigini irrigation scheme, a third of the MUs was rated as having high % OC compared with the two thirds with medium values. Nitrogen was very low in 89% and low in 11% of the surveyed MUs. Whereas that all the surveyed MUs had N below the threshold value (< 2 g kg-1), 84% had low P and 16% has medium levels of available P. CEC values were rated as medium in 32%, high in 16% and very high in 53% of the MUs surveyed. The C:N ratio suggested that SOM was of poor quality in 89% and moderate in 11% of MUs and all the MUs had C/N ratio outside the suggested range. Nutrient balance shows that Ca/Mg ratio in 58% of the MUs was optimal for most crops and 42% was non-optimal. In conclusion, the soil fertility status and overall information from this study could be used in project irrigation design and fertilizer management studies to establish nutrient and drainage requirements for rice and other crops grown in these areas.
Abstract: A survey was undertaken to assess the soil chemical properties and fertility status in selected irrigation schemes in Unguja and Pemba Isles in October, 2017 during the short rainy seasons. These schemes include Dobi, Kwalempona, Machigini and Ole in Pemba and Bandamaji, Kibonde Mzungu, Koani, Mchangani and Mtwango in Unguja. Soil sampling was done...
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Typical Poverty Alleviation Models in Southern China and the Enlightenment to Jiangxi Province
Zheng Wang,
Zhiyan Zou,
Lei Guo
Issue:
Volume 4, Issue 3, May 2018
Pages:
71-80
Received:
15 June 2018
Accepted:
16 July 2018
Published:
14 August 2018
Abstract: With China’s poverty alleviation work at a crucial stage, poverty alleviation is mainly focused on the 14 concentrated destitute areas. In the Southern areas of China, there are numerous populations of poverty, wide range of poverty and the vast scale of poverty, which is a large proportion in the concentrated destitute areas. Among the Southern provinces of China, there are similarities of natural conditions, compatibility in cultural backgrounds and the complementation in economic structures. Therefore, there is the foundation of mutual learning or mutual cooperation in poverty alleviation work in China. This paper analyses the typical mode and experience of the crucial poverty-alleviation from Fujian, Guangdong, Guangxi and Guizhou provinces. Furthermore, based on reality situations, this paper puts forward the enlightenment of poverty alleviation to Jiangxi province. That is the poverty relief focus on spiritual power, the necessity of financial poverty relief facilitating industrial poverty relief, sufficient utilization of countryside tourism resources, targeted poverty relief among provinces or regions and emphasis on the role of big data in poverty alleviation, etc.
Abstract: With China’s poverty alleviation work at a crucial stage, poverty alleviation is mainly focused on the 14 concentrated destitute areas. In the Southern areas of China, there are numerous populations of poverty, wide range of poverty and the vast scale of poverty, which is a large proportion in the concentrated destitute areas. Among the Southern pr...
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The Achievements and Countermeasures of Rural Town Agriculture Products’ Quality Inspection System Construction—Take Changzhou, Jiangsu as an Example
Jieqiong Wang,
Xi Tao,
Yunzhong Zhai
Issue:
Volume 4, Issue 3, May 2018
Pages:
81-85
Received:
20 June 2018
Accepted:
22 August 2018
Published:
27 September 2018
Abstract: Changzhou Agriculture Committee has already achieved some results in rural town agriculture products’ quality inspection through informatization means. Currently, 43 township (street) rapid detection stations in the city have been running efficiently for more than 5 years. The article elaborates on the key point of rural town agriculture products’ quality test system construction in Changzhou, including team construction, construction of facility, environment, system, archives and construction of operating mechanism. It focuses on characteristics and highlights of inspection scope, equipment configuration and test data upload on the current township rapid detection work combined with information technology means. It also presents the existing problems and countermeasures to enhance development from now on.
Abstract: Changzhou Agriculture Committee has already achieved some results in rural town agriculture products’ quality inspection through informatization means. Currently, 43 township (street) rapid detection stations in the city have been running efficiently for more than 5 years. The article elaborates on the key point of rural town agriculture products’ ...
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A Primary Exploration of Variety Selection and Efficient Cultivation Models for Cassava/Peanut Intercropping
Xiumei Tang,
Ruichun Zhong,
Jing Jiang,
Liangqiong He,
Faqian Xiong,
Zhipeng Huang,
Haining Wu,
Jing Liu,
Longfei He,
Ronghua Tang
Issue:
Volume 4, Issue 3, May 2018
Pages:
86-92
Received:
16 August 2018
Accepted:
3 September 2018
Published:
30 September 2018
Abstract: In this study, we determined the agronomic traits and yields of peanuts under different intercropping models by carrying out tests on variety selection, row spacing, and film mulching during sowing of intercropped peanuts. We analyzed the high-yield and comprehensive benefits in order to determine the efficient cultivation models of cassava/peanut intercropping. The results showed that among the eight tested peanut varieties, Guihua771 was the most suitable for intercropping with cassava, and its yield was 18.7% higher than Guihua17 – the local control variety – followed by Guihua22 and Guihua836. In the intercropping model selection test, the yield income of one row of cassava, intercropped with two rows of peanuts, under medium-narrow spacing (0.9-1.1m) was significantly higher than that of one row of cassava intercropped with three or four rows of peanuts with wide spacing (1.3-1.4m). The income of intercropped peanuts with film mulching was higher than that without the film, and the income from cassava and peanut intercropping 15d apart was higher than that of planting the cassava and peanuts at the same time. The best overall yield income was obtained when using Guihua771 as the peanut variety, intercropped with cassava using a row spacing arrangement of one row of cassava with two rows of peanuts, and planting the peanuts 15d ahead of the cassava, with mulching film.
Abstract: In this study, we determined the agronomic traits and yields of peanuts under different intercropping models by carrying out tests on variety selection, row spacing, and film mulching during sowing of intercropped peanuts. We analyzed the high-yield and comprehensive benefits in order to determine the efficient cultivation models of cassava/peanut ...
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