Potassium Nutrition of Some Tropical Plantation Crops

2015 ◽  
pp. 929-954
Author(s):  
H.R. Von Uexküll
HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 807A-807
Author(s):  
K. Raman ◽  
P.D. Jothikumar ◽  
C.S. Machia ◽  
M.C. Muthanna

Traditionally, the tropical plantation crops such as tea and coffee are intensively cultivated. The increasing concern about the environment, ecology, and the realization that the continued use of chemical inputs is causing the starvation of soils are forcing us to look into alternatives such as sustainable farming. Being perennial crops, there are no examples to follow in the case of plantation crops. By trial and error, we have switched over to organic cultivation of 340 ha of tea and 34.5 ha of coffee. The produce from these, i.e., black teas and arabica and robusta coffees, are being cultivated, processed, and packed conforming to most-stringent organic standards and world-renowned certification authorities, such as IMO, IFOAM, MOA, et. al. have vouchsafed their authenticity. The strategies adopted, methodologies of farming, economics, and the benefits accruing from such farming will be discussed.


Ecology ◽  
2008 ◽  
Vol 89 (4) ◽  
pp. 935-943 ◽  
Author(s):  
Alexandra-Maria Klein ◽  
Saul A. Cunningham ◽  
Merijn Bos ◽  
Ingolf Steffan-Dewenter

2020 ◽  
Vol 6 (5) ◽  
pp. 563-576

The goal of this article is to examine the introduction of plantations into East Sumatra (Indonesia) in the late nineteenth and early twentieth century. Attention is given to the five most important plantation crops, namely tobacco, rubber, oil palm, tea, and fiber. The article analyzes the economic and social transformation of the region as a consequence of the rapid expansion of plantations. Within a short period of time, East Sumatra emerged to become one of the most dynamic economic regions of Southeast Asia. The development of the region and the needs of a source of protection for Dutch planters in face of fierce competition from other Western companies and local resistance encouraged the Dutch colonial government to establish effective authority in East Sumatra. Received 4th June 2020; Revised 15th September 2020; Accepted 26th September 2020


Agrotek ◽  
2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Kunto Wibowo

<em>The agricultural sector</em><em> is a strategic sector in Manokwari regency. The agricultural sector provides a major contribution in the regional economy, an economic base of rural people, dominate the life of most residents in this region and provider of food and raw materials for other sectors. The purpose of this study was to determine how big the contribution of different sub-sectors that exist in the agricultural sector, which analyzes sectors influential in changing the economic structure of agriculture in the area and know the potential commodities that can be developed in an effort to enhance the role of the agricultural sector. The research method used through literature study and analysis of secondary data sourced from the relevant authorities. To find out how big the factors that influence changes in economic structures of domination of the agricultural sector into non-agricultural sector estimates used Ordinary Least Square (OLS). For the determination of the potential commodities that can be seeded used method approach Location Quotient (LQ). The results showed the greatest contribution of the different sub-sectors within the agricultural sector contained in the food crops sub-sector. Based on the rate of growth per year, plantation crops sub-sector occupied the highest positions. The sectors that provide real impact on the agricultural sector's contribution to the regional gross domestic product �of the building sector and services sector. Potential commodities that can be developed in different areas in Manokwari regency include food crops and pulses, vegetables and fruits and livestock including cows, goats, pigs and chicken.</em>


India is the world’s third-largest economy after the US and China. India is also one of the leading producer of spices, fish, poultry, livestock and plantation crops, and leading exports consisted of basmati rice, meat of bovine animals, frozen shrimp and prawns, cotton and refined sugar. The study was based on secondary data collected from the various published sources, viz., various issues of handbook of RBI, FAO trade yearbook, Statistical Abstract of India, FAOSTAT, etc. The data were grouped into two periods Pre-WTO 1975-94 and Post-WTO 1995-2015.The exports volume indices for agricultural sector of India were increased by 129.41 percent from 17 in 1975 to 39 in 1994. Besides, the volume indices of imports declined by 56.16 percent from 73 in 1975 to 32 in 1994 for agricultural sector of India. The unit value indices of agricultural exports of India declined by 17.69 percent from 113 in 1975 to 93 in 1994. However, the agricultural import indices grew considerably 171.42 percent from 42 in 1975 to 114 in 1994.The quantity terms of trade for agricultural sector of India was deteriorated by 80.89 percent from 429.41 in 1975 to 82.05 in 1994. Likewise, value terms of trade for agricultural sector of India also depreciated by 67.44 percent from 269.05 in 1975 to 81.58 in 1994. The exports volume indices for agricultural sector of India were increased by 125 percent from 72 in 1995 to 162 in 2015. The volume indices of imports were also enlarged by 934.78 percent from 23 in 1995 to 238 in 2015 for agricultural sector of India. The unit value indices, which measure the average price realization, indicated a significant increase in unit value indices of agricultural exports of India turn up by 131.76 percent from 85 in 1995 to 197 in 2015. However, the agricultural import indices declined by 0.64 percent during post-WTO period. The quantity terms of trade, as well as value terms of trade for agricultural sector of India, was improved by 359.95 and 133.25 percent, respectively during post-WTO regime. The trade balance of Indian agricultural sector showed a favorable balance during pre-WTO period as well as post-WTO period.


ChemInform ◽  
2011 ◽  
Vol 42 (8) ◽  
pp. no-no
Author(s):  
Gene E. Lester ◽  
John L. Jifon ◽  
Donald J. Makus

2021 ◽  
Vol 152 (2-3) ◽  
pp. 237-251
Author(s):  
Geshere Abdisa Gurmesa ◽  
Jiangming Mo ◽  
Per Gundersen ◽  
Qinggong Mao ◽  
Yunting Fang ◽  
...  

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