Technical and scientific publications on water and irrigation, period 1965-2013.

 Juan G. R. and Collaborators. Technical and scientific publications on water and irrigation, period 1965-2013.

Water and Irrigation Vol. 4, No. 1: 15-22, July, 2013, Spain.

Articles on Webwww.aguayriego.com   ,     www.tobaccoirrigation.com

It is related the publications during the period 1965-2013 by a group of researchers, specialists and technics integrated by Juan G. R. and Collaborators, who devoted much of his life to the activity of water and irrigation, recognizing the crucial collaboration of: Research Institutes and Experimental Centers where were conducted investigations, the Institutions of Water, Irrigation and Project, Crop Deparment, Educational Centers, Countries where the studies were conducted, as well as the support provided by laboratories and  weather departments, technical scientific services: statistics, economics, computer science, library and dissemination of results. In all the researches and works done highlights relating to: water, water management, economic studies of  irrigation and water investments, water problem, crop water requirements, irrigation, irrigation water management, irrigation techniques, wastewater, agriculture, food production, climate change, flooding, drainage and drought.

143. Juan G. R. The world population sustainability demands more water available and agricultural production. Water and Irrigation Vol. 4, No. 1: 13-14, July, 2013, Spain.
142. Juan G. R. Fighting floods in Central European countries, 2013 Water and Irrigation Vol 4, No. 1: 11-12, June, 2013, Spain.
141. Juan G. R. Australia hydraulic development requires more investment and economic studies. Water and Irrigation. Vol 4, No. 1: 9-10, April, 2013, Spain.
140. Juan G. R. Abundant rains cause overfloods in the major rivers in Spain. Water and Irrigation. Vol 4, No. 1:7-8, April, 2013, Spain.
139. Juan G. R. Wastewater purification and itsuse in Spain. Water and Irrigation, Vol 4, No. 1:5-6, March, 2013, Spain.
138. Juan G. R. The European Union requires more water resources management . Water and Irrigation, Vol 4, No. 1:3-4, January, 2013, Spain.
137. Juan G. R. The Spanish agricultural sector requires a more streamlined water policy. Water and Irrigation. Vol 4, No 1: 1-2, January, 2013, Spain
136. Juan G. R. Effect of drought 2012 in India. Water and Irrigation. Vol 3, No. 1: 15-16, November, 2012, Spain.
135. Juan G. R. Fighting drought in USA demand great water development. Water and Irrigation. Volume 3, No. 1: 13-14, November, 2012, Spain.
134. Juan G. R. World production of cereals and grains challenges climate variability. Water and Irrigation. Volume 3, No. 1: 11-12, October, 2012, Spain.
133. Juan G. R. Torrential rains and inadequate drainage systems induce huge losses southeast Spain. Water and Irrigation. Volume 3, No. 1: 9-10, October, 2012, Spain.
132. Juan. G. R. Effects and recommendations on the floods in China, 2012. Water and Irrigation. Volume 3, No. 1:6-8, September, 2012, Spain.
131. Juan G. R. Spain needs to strengthen the economic situation of the agricultural sector. Water and Irrigation. Volume 3, No. 1: 4-5, September, 2012, Spain
130. Juan G. R. The Spanish agricultural sector needs to improve profitability and water management. Irrigation and Water Volume: 3, 1: 2-3, 2012, May, Spain.
129. Juan G. R. The excessive global population growth threatens its sustainability. Water and Irrigation, Vol 2, No. 1:7-8, 2011, Spain
128. Juan G. R. The price of electricity in Spain threatens the profitability of irrigation. Irrigation and Water Volume: 2, 1: 5-6, 2011, Spain.
127. Juan G. R. Service fees applied to urban water consumption, greatly raising the water cost. Water and Irrigation: Volume 2, No. 1: 3-4, 2011, Spain.
126. Juan G. R. Technical-economic assessment of irrigation techniques in sugarcane. Water and Irrigation Vol. 2, No. 1:1-2, 2011, Spain.
125. Juan G. R. and Tuduri B. F. Main irritant substances in the tobacco smoke. Tobacco irrigation Vol 2, No. 1: 12-16, 2011, Spain.
124. Tuduri B. F. and Juan G. R. Main potential carcinogenic substances in tobacco smoke. Tobacco irrigation, Vol.2, No. 1: 6-11, 2011, Spain.
123. Tuduri B. F. and Juan G. R. Main carcinogens substances in tobacco smoke.Tobacco irrigation Vol. 2, No. 1:1-5,2011, Spain.
122. Juan G. R. The Guadalquivir river needs channel rectification  and drainage works. against floods. Water and Irrigation Volume 1, No. 2: 7-8, 2010, Spain.
121. Juan G. R. Spanish agriculture requires greater economic profitability. Water and Irrigation Volume 1, No. 2: 5-6, 2010, Spain.
120. Juan G. R. Climate change, current and short term. Water and Irrigation  Volume 1, Nº 2: 3-4, 2010, Spain.                                                                   119. Juan G. R. The exploitation of excessive rains in Spain requires more hydraulic development. Water and Irrigation Volume 1, No. 2: 1-2, 2010, Spain.
118. Juan G. R. The water problem in Spain needs greater unity of action. Water and Irrigation Volume 1, No. 1: 8-9, 2010, Spain.
117. Juan G R. Haiti needs to increase the irrigation and drainage infrastructure to mitigate the food crisis. Water and Irrigation Volume 1, No. 1: 5-7, 2010, Spain.
116. Juan G. R. Major flooding in urban areas of Spain, warning about the deficiencies in the drainage systems. Water and Irrigation Volume 1, No. 1: 3-4, 2010, Spain.
115. Juan G. R. Water in Spain requires more state control. Water and Irrigation Volume 1, No. 1: 1-2, 2010, Spain
114. Juan G. R. Tobacco adicction. Tobacco Irrigation Vol.1, No. 2: 1-2, 2010, Spain.
113. Juan G. R. Flood control in urban areas in Spain. Water and Irrigation. 1: 5-6, 2009, Alicante, Spain.
.112. Juan G. R. For a better use of wastewater in Spain. Water and Irrigation. 1: 3-4, 2009, Alicante, Spain.
111. Juan G. R. Problems with wastewater in Spain  by insufficient water treatment plants. Water and Irrigation. 1: 1-2, 2009, Alicante, Spain
110. Juan G. R. The water and the crisis in world food production. 11/11/2008, Alicante, Spain.
109. Juan G. R. Problem of water exploitation in Spain. 12/08/2008, Alicante. Spain.
108. Juan G. R. Within the water problem in Spain. 2/06/2008Alicante, Spain.
107. Juan G. R. Strengthening administrative infrastructure of water. 25/06/2006, Alicante, Spain,
106. Juan G. R. The water investments require detailed economic studies., 09/05/2006. Alicante, Spain

Newspaper articles in Spain

105. Juan Garcia R. Major flooding by insufficient drainage infrastructure. Newspaper Information Page 28 14/10/2008, Alicante, Spain
104. Juan Garcia R. Large losses of rainwater in Spain. Newspaper Information Page 20 23/06/2008, Alicante, Spain.
103. Juan G. R. For a  better water exploitation  in the Ebro River. Newspaper Information. Page 23-24, 01/05/2008. Alicante, Spain
102. Juan G. R. Fight against the drought. Newspaper Information Page 14, 19/04/2008. Alicante. Spain.
101. Juan G. R. The  fight against the floods. Newspaper Information, Alicante, Spain, p.16, 24/10/2007 /. / Hispagua. Spanish System of Water Information. News Press. Pág.12496
100. Juan G. R. The modernization of irrigation requires demonstrative areas. Newspaper Information. Alicante, Spain, Page 24, 13/4/2006.
99. Juan G. R. Irrigation strategy against drought. Newspaper Information. Alicante, Spain, p.18, 9/3/2006.
98. Juan G. R. The cost of hydric investment  for the Alicante province. Newspaper Information. Alicante, Spain, p.18, 9/12/2005.
97. Juan G. R. Losses huge rainwater. Newspaper Information. Alicante, Spain, p.18, 25/11/2005.
96. Juan G. R. Measures to a prolonged drought. Newspaper Information. Alicante, Spain, p.18, 4/11/2005.
95. Juan G. R. The fight against water deficit. Newspaper Information. Alicante. Spain, p.26, 19/10/2005.
94. Juan G. R. The water situation in Spain. Newspaper Information. Alicante. Spain, p.20, 25/8/2005.

Books

93. Juan G. R., G. E. Dehoguez and L. Tzenova. Irrigation. Editorial People and  Education, Havana, 1996.
92. Juan G. R. The tobacco irrigation and its effect on yield and quality of the harvest, Madrid, 2002
91. Juan G. R. and Tuduri B. F. Tobacco adicction and its main effects, Spain, 2011.

Magazines and bulletins:

1. Juan G. R. Agrotecnia of covered dark tobacco irrigated by sprinkler. Harvests   70- 71,71-72 and 72-73. Cubatabaco 12 Page 1-8 (1974)
2. Juan G. R. The operation of sprinkler systems in the tobacco.
General criteria. Deparment of Irrigation and Drainage. CIDA. (1974)
3. Juan G. R. and C. Harewood Using gypsum blocks in the dark tobacco.
Agrotechnia of Cuba. Volume 8 # 2, p 31-38 (1976) Hydraulic Will
40, page 55-56. (1976).
4. Juan G. R. Irrigation regime of covered dark tobacco. Agrotecnia of Cuba.  Volume 8 # 2 Pg 23-30 (1976), Hydraulic Will No 37 Page 15-17
(1976). Cubatabaco 21 Page 81 to 88.1977.
5. Juan G. R. Study of the distribution and behavior of root system
in sweet orange trees of 6 years old. Agrotechnia of Cuba,
Volume 8 # 1 Page 79-113 (1976).
6. Juan G. R. Comparative study of sprinkler irrigation on covered dark tobacco under and over the cloth with an irrigation regime established. Agrotecnia of Cuba. Volume   9 # 1 p.113-143 (1977).
7. Juan G. R. Irrigation dark tobacco under the conditions of Pinar del Rio. Hydraulic Will 44, p 33-36 (1977). Technical Instructions Page 249-258 snuff cultivation. (1979).
8. Juan G. R. Recommendations on hydro module for different varieties of tobacco. Hydraulic Will 46. Page 19-20 (1978).
9. Juan G. R. Agroeconomic study to level scheme for “Limoncito” reservoir. Irrigation and Drainage Institute. (1978). CIDA. This work was conducted in 1965 in INRH and subsequently was used as study at the Faculty of Irrigation and Drainage, Cuba
10. Cl Solis, H. M. Alce and G. R. Juan. Bibliography of tabacco crop.
Library “José Martí”. Booklet No 44, Havana (1978).
11. Juan G. R. Hoses irrigation of covered dark tobacco in the Havana conditions. Tobacco series Volume 4 (1): 7-20 (1981).
12. Juan G. R. Irrigation of  traditional tobacco nurseries. Cubatabaco # 38: 47-52  (1981).
13. Juan G. R. Comparative study of sprinkler and hose irrigation for covered dark tobacco. Irrigation and Drainage Series. Volume 5 (1): 31 – 46 (1982).
14. Juan G. R. Response of covered dark tobacco to different irrigation regimes and to perforated pipe  and hose. Agrotecnia of  Cuba Vol 14 (1): 103-120, (1982).
15. Juan G. R. Evapotranspiration and coefficients “K”, “Z” and “R” in the covered  dark tobacco. Agrotechnia of Cuba (1982). Vol.14 (1): 3-12 (1982).
16. Juan G. R., G. P. Guzman and C. A. Diaz. Water management in the covered dark tobacco irrigated by hose in a Ferralitic soil.”20 years of water development in the  Revolution” Pág.221 (1982), Hydraulic Will  No. 69: 29-36 (1985).
17. Juan G. R., M. F. Sanz, R. R. Roque V. J. Ortega. Tobacco irrigation by forecast in Pinar del Rio province. “20 years of water development in the Revolution.” Pág.229 (1982). Hydraulic Will 66, p 50-56 (1985).
18. Guzman, G. P. and G. R. Juan. Coefficients leaf area in covered in dark tobacco. Tobacco series Vol 6 (2): 7-20 (1983).
19. Juan, G. R., C. J. Cruz, A. A. Griñanes and D. J. Rodriguez. Feasibility of irrigation. The brochure “Feasibility Study for the development of tobacco  virginia crop in the People’s Republic of Mozambique UDA p 100-134 (1983). Republic of Mozambique.
20. Alvarez, V. P. and G. R. Juan. Evapotranspiration of covered dark tobacco and its correlation with weather elements. Irrigation and Drainage Series. Vol. 7 (2): 75-87 (1984).
21st. Juan G: R. and N. Castillo. Irrigation water management and chemical and physical characteristics of covered dark tobacco. Irrigation and Drainage Series 9 (2): 71-83, 1986.
21b. Lopez F. G. and G. R. Juan. Sensory characteristics of  covered dark tobacco irrigated with different water managements. Technical Bulletin No. 13. Terminal, page 12-18 (1984).
22. Zlatev, S. G. and G. R. Juan. Function “Water production value in covered dark tobacco under the conditions of Cuba. Scientific Papers of the Agricultural Institute “V. Kolarov “, Bulgaria. Vol 29 (2): 215-220 (1984).
23. Juan G. R. Water requirements and water use of soil layers in the covered dark tobacco under the conditions of Cuba. Scientific works of Agricultural Institute “V. Kolarov”, Bulgaria. Vol 29 (2): 205-212, (1984).
24. Juan G. R. Influence of altered irrigation regime and irrigation technique on growth, development and yield of covered dark tobacco. Autoreferat. Agricultural Institute “V.Kolarov”. Plovdiv. Bulgaria. (1984).
25. Juan G. R. Recommendations on irrigation of tobacco varieties  that
grown in Cuba. HydraulicWill  No. 67:35-40, (1985).
26. Juan G. R. and H. P Cordero. Irrigation regime of dark tobacco Criollo variety. Irrigation and Drainage Series. Vol 8 (1): 81-90, (1985).
27. Cordero H. P., G. R. Juan and  J. M. Padron. Evapotranspiration and bioclimatic coefficients  “K” of  dark tobacco Criollo variety. Agrotechnia of Cuba Vol 17 (1): 43-51, (1985).
28. Cordero H. P., G. R. Juan and C. E. Gonzales. Response of dark tobacco “Criollo”  variety to different levels of soil moisture. Tobacco series Vol8  (1): 31-45, (1985).
29. Juan G. R. and G. P. Guzman. Altered irrigation regime in the covered dark tobacco  irrigated by hose. Tobacco series Vol 8 (2): 17-36, (1985).
30. Juan G. R. And V. P. Alvarez. Correlation between the plant and its parts, in the covered dark tobacco under irrigation. Irrigation and Drainage Series. Vol8 (2): 5-15 (1985).
31 Cordero. H. P. and Juan G. R. Evapotranspiration bioclimatic coefficients “Z” and “R” in the dark tobacco Criollo variety. Tobacco Series Vol 9 (1): 55-64 (1986).
32. Juan G. R., V. P. Alvarez and G. P. Guzman. Evapotranspiration  of covered dark tabacco irrigated by drill pipe and  by hose and it relation with leaf area. Agrotechnics of Cuba Vol 18 (1): 35-44 (1986).
33. Juan G. R. and H. P. Cordero. Evapotranspiration bioclimate coefficients “K”, “Z” and “R” of dark tobacco  covered and to the sun in irrigation conditions.  Hydraulic Will, No. 72: 38-42 (1986).
34 Guzman  G. P., G. R. Juan and L. Rodrigues. Water management in the traditional tobacco nurseries under the Havana conditions.Tobacco series Vol. 9 (1): 65-79 (1986).
35. Juan, G. R., C. A. Diaz,  V. P. Alvarez. Influence of the wind in the bedding of covered dark tobacco, grown with different water management and forms hilling. Irrigation and Drainage Series Vol 10 (1): 83-95, (1987).
36. Sanchez, M. Y. and G. R. Juan. Irrigation regime regionalization  of the tobacco under conditions of Pinar del Rio. Hydraulic Engineering, Vol 8 (1): 55-64 (1987).
37. Cordero H. P. and G. R. Juan. Tobacco irrigation. Bibliographic. CIDA
No. 12, Pages: 1-37 (1987).
38. Alvarez V. P: and G: R. Juan. Correlation of covered dark tobacco  evapotranspiration  with the different climatic elements Hydraulic Engineering, Vol 8 (1) :65-72, (1987).
39. Guzman G.P. and G. R. Juan. Evapotanspiración of dark tobacco Corojo variety in two zones of the province of Pinar del Rio. Tobacco Series, Vol.10 (2): 57-69,   (1987).
40. G. P.Guzman  and G. R. Juan. Influence of the pot scaling in the biological determination of tobacco wilting point. Tobacco Series Vol 10 (2): 45-55, (1987).
41. Diaz M. and Juan G. R. Forecast of tobacco irrigation requirement in the tobacco by soil moisture determination. Agrotechnics of Cuba, Vol 19 (2): 81-88 (1987).
42. G. Contreras A., L. R. Cruz, E. L. Leon and G R. Juan Effect of irrigation on the yield of tobacco Virginia variety Speight G-28. Hydraulic Will No. 79:7-10, (1988)
43. Álvarez V. P. Juan G. R., Cordero H. P.  Correlation of dark tobacco evapotanspiración of the variety “Criollo” with the different weather elements. Tobacco  Series, Vol 11 (2): 69-76 (1988).                                                              44. Juan G. R., M. Y. Sanchez and C. A. Diaz. Irrigation regime regionalization of tobacco type “Virginia” on the conditions of Pinar del Rio. Agrotechnics of Cuba Vol 20 (1): 25-34, (1988).
45. Cordero H. P. and Juan G. R. Irrigation regime of dark tobacco to the sun of the variety H-16-50-3 under the conditions of Pinar del Rio. Hydraulic Engineering. Vol.9 (3): 241-245, (1988).
46. Guzman G. P., G. R. Juan and V. P. Alvarez. Evapotranspiration correlation of covered dark tobacco Corojo variety and Havana 7-5-1. Hydraulic Engineering. Vol 9 (2): 147-152, (1988).
47. Juan G. R. and E. O. Puig. Regionalization of  covered dark tobacco variety   “Corojo”, under the conditions of Havana. Hydraulic Engineering  Vol 9 (2): 159-166, (1988)
48. Diaz M. and Juan G. R. Tobacco irrigation by prediction in Pinar del Rio conditions. Hydraulic Engineering Vol 9 (3): 209-216, (1988).
49. Juan G. R. and M. Y. Sanchez. Project irrigation regime of  dark tobacco variety “Criollo”. Hydraulic Will  No. (80): 9-14, (1989).
50. Juan G. R., Alvarez V. P. and L. R. Cruz. Correlation of evapotranspiration tobacco type “Virginia” with the elements of weather. Agrotechnics of Cuba,Vol 22 (1): 65-73, (1990).                                                                     51. Dehoguez G. E., C. N. Landa and G. R. Juan. Comparative study of double furrow irrigation and bands in banana plantain . Agrotechnics of Cuba, Vol.22 (1): 29-34, (1990).                                                                                                           52. Valle G. R., G. R. C. A. Diaz. Response of dark tobacco to the sun in stick of the variety Cabaiguán “7”  at different levels of soil moisture. Technical Issues Tobacco. January-April: 1-14, (1990).
53. Aleman G. C., G. R. Juan and V. J. Ortega. Behavior forecasting areas by crop irrigation in Cuba. Hydraulic Engineering. Vol 12 (2): 39 – 43, (1991).
54. Juan G. R. And M. Diaz. Forecasting of irrigation requirements for tobacco in the Cuba conditions. Soil science, irrigation and mechanization Vol 1 (2-3): 5-16, (1991).
55. Juan, G. R., G. L. Alonso C. N. Landa. Irrigation in the world and in Cuba. Hydraulic Will  No. 84:36-39 (1991).
56. Santana P. R. and G. R. Juan. Agrotechnical and operating parameters of the sprinkler “Rocio” installation. Agroindustrial Crops Vol 1 (2-3): 53-63 (1991).
57. Juan G. R. Research and its realization in social and agricultural practice. First workshop on introduction of achievements. CIDA Page 7-15, Havana (1991).
58. Juan, G. R., C. N. Landa and P. R. Santana. Technical and economic indicators of the sprinkler “SDI” installation. Hydraulic Will  No. 85:26 – 28, (1991).
59. Santana, P. R., G. R. Juan and G. R. Navarro. Agrotechnical and operating parameters of the sprinkler “SDI” installation. Soil sciences, irrigation and mechanization Vol. 1 (2-3): 39-50, (1991).
60. Cruz, L. R. and Juan G. R. Optimal irrigation regime tobacco varieties Burley and Burley Ky-17. Agroindustrial Crops Vol 2 (2): 49-61, (1992).
62. Juan G. R. and M. Y. Sanchez. Tobacco irrigation regime regionalization  in the conditions of Cuba. Soil Science, Vol mechanization irrigation and 2 (1) :41-50, (1992).
62. Juan G. R. Some agro-technical considerations irrigated areas. Hydraulic Engineering Vol 13 (3): 3-14, (1992).
63. Landa C. N., G. R. Juan and P. R. Santana. Technical and economic indicators of the sprinkler irrigation system “Rocio”. Hydraulic Engineering Vol 13 (3): 57-62, (1992).
64. Garcia A. M., C. A. Diaz, V. P. Alvarez and Juan G. R. Water management in technically advanced tobacco seedling, using filter cake as substrate. Agroindustrial Crops Vol 2 (2): 7-13, 1992.
65. Cordero H. P. and Juan G R. Response of dark tobacco to the sun  of the Havana 16-34-1 variety at different soil moisture levels. Hydraulic Engineering. Vol 14 (2): 19-24, 1993
66. Diaz C. A., V. P. Alvarez and G. R. Juan Irrigation regime of covered dark tobacco H 7-5-1 variety in Havana conditions. Hydraulic Engineering. Vol 14 (3): 15-22, 1993.
67. Juan G. R., V. P. Alvarez  and H. P. Cordero. Relation of evapotranspiration with the yield of the dark tobacco Criollo variety. Hydraulic Engineering. Vol 14 (2): 91- 95, 1993.
68. Valle G. R., G. R. Juan and C. A. Diaz. Irrigation regime of dark tobacco to the sun in stick variety Cabaiguán 7. Hydraulic Engineering 15 (3) :67-74, 1994.
69. Juan G. R. Evapotranspiration of commercial varieties of tobacco in Cuba. Agro Industry Crop 4 (2): 32-39, 1994.
70. Juan G. R. Evapotranspiration tobacco varieties of new development in Cuba. Hydraulic Engineering 15 (3) :63-66, 1994.
71. Juan G. R. The tobacco  irrigation and its effect on yield and crop quality. Havana, 1995.
72. Sanchez M. Y., G. R. Juan and G. R. Valle. Irrigation regime regionalization of the dark tobacco in stick  variety “Golden Hair” in the conditions of Sancti Spiritus. Agricultural Technology Volume 5 (1) 41-47, 1995.
73. Juan G. R., G. R. Valley and C. A. Diaz. Response of the dark tobacco variety “Golden Hair” at different levels of soil moisture. Hydraulic Engineering, Vol 18 (2): 23-32, 1996-1997.
74. Juan G. R., M. Y. Sanchez and G. R. Valle. Irrigation regime regionalization of the dark tobacco variety “Golden Hair” in the conditions of Villa Clara. Hydraulic Engineering. Vol 18 (3): 41-48, 1996-1997.
75. Santana P. R., G. R. Juan and B. P. Gonzalez. Principal irrigation exploitation parameters of the central pivot Fregat machine in Virginia tobacco. Hydraulic Engineering, Vol 18 (3): 7-13, 1996-1997.
76. Alvarez V. P., G. R. Juan and A. Diaz. Relation of evapotranspiration with  the yield of the dark tobacco  Havana 7-5 -1 variety.Ingeniería Hydraulic, Vol.18 (3) :75-81, 1996-97.
77. Juan G. R., V. P. Alvarez and H. S. Garcia. Influence of irrigation on
growth and development of tobacco. Hydraulic Engineering, Vol 19 (1): 64-67,  1998.
78. Juan, G. R., A. R. Crespo, P. R. Santana and A. Cabrera. Technical and economic indicators of the central pivot Fregat machine in Virginia tobacco. Hydraulic Engineering, Vol.19 (2): 3-6, 1998.
79. Juan G. R. and V. P. Alvarez. Water requirements of tobacco in Cuba and its relationship with other producing countries. Hydraulic Engineering Vol 9 (2) :37-39, 1998.
80. Juan G. R. Irrigation requirements tobacco varieties in Cuba. Hydraulic Engineering, Vol.19 (2) :7-12, 1998.
82. Juan G. R., V. P. Alvarez and S. L. Leon. Water requirement of tobacco seedlings. Hydraulic Engineering, Vol 19 (3) :66-67, 1998.
82. Alvarez V. P. and G. R. Juan. Function of water consumed and tobacco harvesting in Cuba. Hydraulic Engineering 19 (2) :23-25, 1998.
83. Juan G. R. and G. R. Juan. Agricultural production in urban conditions. Organic Agriculture, Vol (1), 1998.
84. Juan G. R. and G. R. Juan. Response of crops in rainfed and irrigated in urban conditions. Organic Agriculture, Vol (2), 1998.
85. Juan G. R., V. P. Bernal and G. Malagon. Optimum planting time for urban agriculture on the northern coast of Havana. Hydraulic Engineering, Vol 19 (3): 58 to 61.1998.
86. Alvarez V. P., G. R. Juan and S. L. Leon. Correlation of climatic elements with tobacco evapotranspiration in Cuba. Hydraulic Engineering. Vol 19 (4) 13 to 15.1998.
87. Juan G. R., G. R. Juan and S. L. Leon. Exploitation small plots in urban conditions and their response in no irrigated and irrigated conditions. Hydraulic Engineering. Vol.19 (4) :16-21, 1998.
88. Juan G. R. Irrigation moment of commercial tobacco varieties  in Cuba. Hydraulic Engineering Vol 20 (1): 34-36, 1999.
89. Alvarez V. P., G R. Juan, C. A. Diaz and A. M. Garcia. Response of tobacco technical nursery to the drip and microjet irrigation, Hydraulic Engineering Vol.20 (1): 46-48, 1999.
90. Juan G. R. and V. P. Alvarez. Formula for calculate the total tobacco evapotranspiration  and  it distribution. Hydraulic Engineering. Vol.20 (1): 52 to 54,1999.

    Technical publications for internal circulation.

1. Juan G. R. Agroeconomic study of “Heroic Vietnam” dam. Island
Pinos. (1966).
2. Juan G. R. Agroeconomic study of  “The Guava” dam. Island
Pinos. (1967).
3. Juan G. R. and L. Hidalgo. Technical-economic assessment of losses in reservoirs. La Habana (1967).
4. Juan G. R. Technical report of plan “Banao” Sancti Spiritus (1967).
5. Juan G. R. Banana cultivation. INRH (1968).
6. Juan G. R. Methodology of the citrus root system. Matanzas (1970).
7. Juan G. R. Study of the distribution and behavior of root system
in sweet orange trees 16 years old. La Habana (1972).
8. Juan G. R. Agroeconomics conference. University of Havana. (1974).         9. Juan G. R. Perspective plan of tobacco 1976-80 in needs of irrigation system and water supply sources. Cuba (1975).
10. Juan G. R. General aspects that affect the operation of the irrigation in the tobacco. La Habana (1981).
11. Juan G. R. Irrigation in the Tobacco.Cuba (1981).
12. Juan G. R. Instructions forecast for tobacco crop irrigation by
gravimetric method. Cuba (1982).
13. Juan G. R. Irrigation in the tobacco 2nd version, Cuba (1984).
14. Juan G. R. Irrigation Development Program of tobacco until 1990.Cuba (1985)
15. Landa, C. N. and Juan G. R. Some considerations about saving
energy in irrigation. La Habana (1985)
16. Zamora E., R. Rey, G. R. Juan and et. Project irrigation regime for
agricultural crops. Cuba. Technical Report 208 pages (1987).
17. Juan G. R. Recommendations on irrigation production units
tobacco state in Nicaragua in the 1986-1989 period.Technical  Report
Esteli, Nicaragua 1989.
18. Juan G. R Some considerations on agriculture production in small plots. Havana,   (1995)

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