Factors that determine irrigation effectiveness in the tobacco

Zlatev S. G. Factors that determine irrigation effectiveness in the tobacco.

Bulgarian Tobacco,Year 23 (5): 20-26, Bulgaria , 1978.

From the experimental results in Bulgaria has been established that the optimum irrigation regime in the oriental tobacco is achieved with a level of moisture in the soil is / 70 – / 65-70 / – 50 / % of field capacity and for the tobacco virginia type the level of moisture in the soil is 80 – 70 – 60 % respectively. The number of irrigations depend of rainfall distribution regime, for the oriental tobacco apply from 2 to 4 irrigation and for the Virginia tobacco is used from 4 to 6 irrigation.

The reserve of soil moisture in Bulgarian conditions is considered optimal in the first phase of the crop growing season, thus the need to tobacco irrigation is little at this stage. The oriental tobacco despite to has lower water requirements than broad-leaves tobacco, reacts positively to irrigation.

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