What are the effects of phenology on farming arrangements?

Phenology: refers to those natural phenomena in nature that are affected by the environment (climate, hydrology, soil) and occur on an annual cycle.

There are three main categories of phenology: plant phenology, animal phenology, and various hydrological and meteorological phenomena.

The arrangement of modern agriculture is mainly based on meteorological and hydrological phenomena, and plant phenology and animal phenology are only used as a reference.

The meteorological and hydrological basis for the subdivision of agricultural arrangements is as follows:

1.Temperature (air temperature and ground temperature): including the average temperature of the year, accumulated temperature, minimum and maximum temperature, temperature difference between day and night, etc.

Seeds need to germinate and grow at the right temperature to avoid extreme temperatures. A certain amount of accumulated temperature is required for flowering and fruiting. Modern agriculture can use facilities to change natural conditions to achieve favorable agricultural production purposes.

2.Illumination: long and short daylight (photoperiod), strong and weak light (illuminance), spectral range (light quality).

The light conditions adapted to each plant are different, such as radish and cabbage and other long-day crops need to bloom and bear fruit through the long sunshine in spring, which should be avoided in production; Cowpeas, lentils, etc., need short days in autumn to bloom and bear fruit; Tomatoes, peppers, etc., as long as the temperature is suitable, can bloom and bear fruit all year round.

3.Humidity: includes soil moisture and air humidity. It mainly depends on the amount of rainfall. According to the time distribution of rainfall, the crops that like humidity or drought should be reasonably arranged.

Ruixue Mega Year: It snowed this year, and next year there will be a bumper harvest.

The study of phenology has other functions besides selecting the sowing date and predicting the agricultural time.

The zoning of crops is a prerequisite for the promotion of cultivated crops and the rational allocation of crops. For example, the issue of the promotion boundary of rice-wheat double-cropping areas requires careful zoning in order to achieve twice the result with half the effort and increase yield. The phenological observation data is of great reference value for solving this problem.

Phenological data can also be used for introduction and domestication. If the phenological conditions of a plant's origin are known, it can be used to introduce the plant to other areas with the same conditions. The Americans have transplanted many varieties of cash crops from China, among which the more famous ones are citrus transplanted to California, tung oil transplanted to Florida, and soybeans transplanted to central and western states.

After 10 or 20 years of cultivation of these cash crops, the United States has not only been able to provide for itself, but has also won a certain position in the international market. Before transplantation, the United States sent people to collect information on the phenological conditions of the transplanted varieties and meteorological information from China's agricultural experiment stations and agricultural schools at that time.

Phenological information can also help people in the fight against pests. There is a certain period of time for pests to develop. If the phenological map is used to advance or delay the planting date of crops by several days, it is often possible to reduce or avoid pest infestation and increase crop yield.

For example, at the beginning of the 20th century, the U.S. wheat pest Haixing fly was extremely rampant, and the U.S. Department of Agriculture used phenological maps to delay the sowing date of wheat in various places by several days, avoiding this pest and increasing wheat yield.

The mountainous area of China is larger than that of the plains, and a large area of mountainous land can be used. The development of mountainous areas is a very promising way for China to develop agriculture. However, there are many places where the adaptability of the climate and soil in mountainous areas to agricultural management has not been investigated.

It is not easy to set up a weather station in a mountainous area, but it is relatively simple to make phenological observations. In the future, if phenological observation is carried out in mountainous areas, the problem of how to rationally use the vertical distribution zone in mountainous areas can be scientifically solved. It is conceivable how much production value and national economic significance this measure will have!

Since phenological data can be used to predict agricultural time, it can also be used to determine the most suitable date for afforestation, seedling transplanting, and tree seed collection. The study of phenology is also helpful for greening cities and villages and creating shelterbelts.

In addition, phenological observations are useful for beekeeping, grazing, fishing, hunting, and all other economic developments related to the biological world. Phenological data can also be used to determine the characteristics of local climates.

Phenology is a marginal science between biology and meteorology. In biology it is close to ecology, and in meteorology it is close to agrometeorology. However, ecology (whether plant ecology or animal ecology) and agrometeorology are precisely the very weak links in China's biology and meteorology, so under the guidance of the party's agriculture-based policy, phenological observation should be further strengthened and promoted, and efforts should be made to achieve a greater bumper harvest in agriculture.

1) Prosperity and decay come and go ] 2) Arrange agricultural affairs accordingly. |Apricot Zheng eggplant blossoms bloom ......Harvest wheat and crop crops. |So it seems ......3) No, you can't.

Because apricot blossoms and peach blossoms are plants, while cuckoos are animals, two different types of phenological phenomena should not be combined in one sentence. Because the former is talking about the phenological phenomena of spring, and the latter ones are talking about the phenological phenomena of summer. (4) Illustrate with examples what is natural language.

5) Explain some common natural phenomena, which in agricultural production play a role in predicting agricultural time. A, closely follow the sentence "plants and trees flourish and wither, migratory birds come and go" b, the first two are plants and the latter is animals c, according to the order of the seasons example (6) logical order (7) "the language of nature" or "language". 2. Use phenological knowledge to study agricultural production 3. 4. The importance of phenology to agriculture.

5. Such as "the moon halo at noon wind", "the mountain rain is coming, the wind is full of buildings", "the morning glow does not go out, the sunset travels thousands of miles", "the east rainbow roars and the west rainbow rain" and so on. 6 The wax plum blossoms as a sign that the cold winter of the snowstorm is coming; The maple leaves are red, as if nature is shouting the words of the calendar:

Now is the golden autumn of fruitful fruits.