Abstract
The article provides information on the effect of the optimal amount of seedlings, planting patterns and timing on plant growth cycles when growing rice as a secondary crop. Nowadays, the demand for food is also increasing tremendously as a result of the rapid growth of the world’s population. This indicates that the issue of food security will become more complicated in the future. Like all food products, the population's demand for rice is growing from year to year. According to official FAO data, by 2020, the total volume of rice production should reach 750 million tons to meet the demand of the world population for rice.
Highlights
Today it is important to increase cereal crops, including rice, to meet the food needs of the world's population
According to the table, experiments show that two varieties of rice, early ripening “Guljahon” and mid-ripening “Iskandar” are grown in three different periods (25.06, 5.07 and 15.07) and in different planting patterns (30x10x1, 30x10x2, 30x10x3), from the point of view of temporal analysis, it was found that in the options with 30-day-old rice seedlings in the second decade of July, the entire vegetation period of the plant lasted [7-15] days longer than in the varieties www.psychologyandeducation.net planted in the third decade of June and the first decade of July
The average daily temperature in the third decade of May (25.05) was 21-23 °С, and the average daily temperature in the first (5.06) decade of June was 21-23 °С, and the average daily temperature in the second decade of June (15.06) was 23-24 ° С, it was found that the rice seeds sown during this period had a temperature of 2-3 ° C higher, and the seeds germinated after [3,4] days, because they had already received enough heat
Summary
Today it is important to increase cereal crops, including rice, to meet the food needs of the world's population. World agriculture has been conducting intensive research on the application of new innovative resource-saving technologies on a scientific basis to increase the yield of rice harvested two or three times a year. In this regard, it is important to improve the existing technologies for the cultivation of environmentally friendly, abundant and highquality products from rice, to pay special attention to a clear agricultural management system Efficient use of vacant lands of autumn cereals and other early crops, rational timing of planting of seedlings of rice varieties, determination of the www.psychologyandeducation.net scheme and number of seedlings, optimization of agro-technical elements are important theoretical and practical tasks.
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