Iranian red gold burns in a drought furnace
The story of Iranian red gold problems appears every year, one year is the problem of cheap prices, one year is the problem of exports and another year is the problem of frost and still these problems continue, this time Iranian red gold with the problem of drought and drought Blue is struggling.
Farmers in the south of Khorasan Razavi and South Khorasan provinces reap the fruits of their labors with thousands of hopes every year in late October and early November, when red gold is harvested, but this year hardworking farmers, who face many problems, have to The problem of dehydration of saffron fields, which is specific to subtropical regions and parts, should be considered in the black water market, while the time of the first irrigation is a critical factor that affects the quantity and quality of crop efficiency.
According to field research, flowering occurs when the air temperature reaches 12 ° C, and flowering occurs 2 to 3 weeks after irrigation.
The first irrigation should be done when saffron can be harvested after this period. In this study, the most suitable date for the first irrigation with 50, 75 and 95% probabilities for different parts of Khorasan provinces is determined and the necessary zoning is done.
Based on the results, flowering date and time of the first irrigation of saffron plant is very different depending on the climate and temperature of the study area. In places with higher altitudes and lower average temperatures, the flowering date and irrigation time are usually early and in early autumn.
As the altitude decreases and the air temperature rises, the flowering date and the time of the first irrigation are transferred to the middle and even to the end of autumn.
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