Yields are affected by temperature and optimum mean daily temperatures are 18 to 20°C. In general a night temperature of below 15°C is required for tuber initiation. Optimum soil temperature for normal tuber growth is 15 to 18°C. (...) This, however, can have an adverse effect when frequent irrigation with relatively cold water may decrease the soil temperature below the optimum value of 15 to 18°C for tuber formation. Also, soil aeration problems can sometimes occur in wet, heavy soils.
Language:English
Score: 1555302.4
-
https://www.fao.org/land-water...re/crop-information/potato/ar/
Data Source: un
Yields are affected by temperature and optimum mean daily temperatures are 18 to 20°C. In general a night temperature of below 15°C is required for tuber initiation. Optimum soil temperature for normal tuber growth is 15 to 18°C. (...) This, however, can have an adverse effect when frequent irrigation with relatively cold water may decrease the soil temperature below the optimum value of 15 to 18°C for tuber formation. Also, soil aeration problems can sometimes occur in wet, heavy soils.
Language:English
Score: 1555302.4
-
https://www.fao.org/land-water...re/crop-information/potato/en/
Data Source: un
Yields are affected by temperature and optimum mean daily temperatures are 18 to 20°C. In general a night temperature of below 15°C is required for tuber initiation. Optimum soil temperature for normal tuber growth is 15 to 18°C. (...) This, however, can have an adverse effect when frequent irrigation with relatively cold water may decrease the soil temperature below the optimum value of 15 to 18°C for tuber formation. Also, soil aeration problems can sometimes occur in wet, heavy soils.
Language:English
Score: 1555302.4
-
https://www.fao.org/land-water...re/crop-information/potato/ru/
Data Source: un
Temperature is an important factor in variety selection. Optimum temperatures for high producing varieties are over 25°C but some varieties are adapted to lower temperatures and produce acceptable yields. (...) Low temperatures (<15°C) during flowering and yield formation, and high temperatures (>35°C) lead to poor seed set, problems with ripening and reduced yields.
For optimum light interception the density index (plants per ha s row spacing) is about 3000 when adequate water and fertilizers are available (100 000 to 150 000 plants per ha). (...) Irrigation Scheduling
Irrigation Scheduling
Where rainfall is not sufficient and irrigation water supply is restricted, irrigation to attain optimum production should be based on avoiding water deficits during the periods of peak water use from flowering (2) to early yield formation period (3).
Language:English
Score: 1555302.4
-
https://www.fao.org/land-water...e/crop-information/sorghum/ar/
Data Source: un
Temperature is an important factor in variety selection. Optimum temperatures for high producing varieties are over 25°C but some varieties are adapted to lower temperatures and produce acceptable yields. (...) Low temperatures (<15°C) during flowering and yield formation, and high temperatures (>35°C) lead to poor seed set, problems with ripening and reduced yields.
For optimum light interception the density index (plants per ha s row spacing) is about 3000 when adequate water and fertilizers are available (100 000 to 150 000 plants per ha). (...) Irrigation Scheduling
Irrigation Scheduling
Where rainfall is not sufficient and irrigation water supply is restricted, irrigation to attain optimum production should be based on avoiding water deficits during the periods of peak water use from flowering (2) to early yield formation period (3).
Language:English
Score: 1555302.4
-
https://www.fao.org/land-water...e/crop-information/sorghum/en/
Data Source: un
Yields are affected by temperature and optimum mean daily temperatures are 18 to 20°C. In general a night temperature of below 15°C is required for tuber initiation. Optimum soil temperature for normal tuber growth is 15 to 18°C. (...) This, however, can have an adverse effect when frequent irrigation with relatively cold water may decrease the soil temperature below the optimum value of 15 to 18°C for tuber formation. Also, soil aeration problems can sometimes occur in wet, heavy soils.
Language:English
Score: 1555302.4
-
https://www.fao.org/land-water...re/crop-information/potato/es/
Data Source: un
Yields are affected by temperature and optimum mean daily temperatures are 18 to 20°C. In general a night temperature of below 15°C is required for tuber initiation. Optimum soil temperature for normal tuber growth is 15 to 18°C. (...) This, however, can have an adverse effect when frequent irrigation with relatively cold water may decrease the soil temperature below the optimum value of 15 to 18°C for tuber formation. Also, soil aeration problems can sometimes occur in wet, heavy soils.
Language:English
Score: 1555302.4
-
https://www.fao.org/land-water...re/crop-information/potato/fr/
Data Source: un
Yields are affected by temperature and optimum mean daily temperatures are 18 to 20°C. In general a night temperature of below 15°C is required for tuber initiation. Optimum soil temperature for normal tuber growth is 15 to 18°C. (...) This, however, can have an adverse effect when frequent irrigation with relatively cold water may decrease the soil temperature below the optimum value of 15 to 18°C for tuber formation. Also, soil aeration problems can sometimes occur in wet, heavy soils.
Language:English
Score: 1555302.4
-
https://www.fao.org/land-water...re/crop-information/potato/zh/
Data Source: un
For germination the lowest mean daily temperature is about 10°C, with 18 to 20°C being optimum. The crop is very sensitive to frost, particularly in the seedling stage but it tolerates hot and dry atmospheric conditions so long as sufficient water is available to the plant and temperatures are below 45°C. (...) However, five or six leaves near and above the cob are the source of assimilation for grain filling and light must penetrate to these leaves. For optimum light interception, for grain production, the density index (number of plants per ha/row spacing) varies but on average it is about 150 for the large late varieties and about 500 for the small early varieties. Sowing methods and spacing vary, and fertility and water are decisive factors in choosing the optimum density in relation to light interception and highest yields.
Language:English
Score: 1537649.4
-
https://www.fao.org/land-water...are/crop-information/maize/es/
Data Source: un
For germination the lowest mean daily temperature is about 10°C, with 18 to 20°C being optimum. The crop is very sensitive to frost, particularly in the seedling stage but it tolerates hot and dry atmospheric conditions so long as sufficient water is available to the plant and temperatures are below 45°C. (...) However, five or six leaves near and above the cob are the source of assimilation for grain filling and light must penetrate to these leaves. For optimum light interception, for grain production, the density index (number of plants per ha/row spacing) varies but on average it is about 150 for the large late varieties and about 500 for the small early varieties. Sowing methods and spacing vary, and fertility and water are decisive factors in choosing the optimum density in relation to light interception and highest yields.
Language:English
Score: 1537649.4
-
https://www.fao.org/land-water...are/crop-information/maize/fr/
Data Source: un
