Cotton sowing four suitable

As the saying goes: "There is a three-point harvest." Spring is a great time for cotton sowing. Scientific sowing is the cornerstone of high yield. Due to the poor ability of cotton to overburden the soil, the phenomenon of lack of seedlings and ridges often occurs. Therefore, pay attention to the following four aspects when sowing, so as to ensure that all seedlings are broadcast.

First, appropriate sowing time sowing is the key to cotton seedlings. Generally speaking, the daily average temperature is stable at 12°C or more, and the temperature below 5°C is above 14°C. The specific time varies by region and is generally sown at the beginning of April to 20th. The sowing date must obey the public opinion, and sowing should be conducted according to the principle of "when it is not equal, when it is not the same time," and the saline-alkaline land can be sowed in due course.

Second, suitable for the amount of farmers to put it well “have money to buy species, no money to buy seedlings,” so the seeding rate should be based on seed germination rate, soil quality, density, climate and other factors to determine. The germination test should be done well before sowing and the seeding amount should be reasonably determined to ensure the total amount of seedlings.

Third, the density of suitable density Cotton should be determined based on species, soil fertility and other factors. Saline-alkali cotton “will not grow young seedlings”, there will be dead seedlings at the seedling stage, and the productivity of single plants in cotton is low, and the planting density should be appropriately increased.

Fourth, the appropriate depth of suitable sowing deep cotton is the key to emergence. Sprouting deep embryos is difficult to penetrate through the soil layer; the shallow seeds are exposed to the surface of the soil or cannot absorb enough water to germinate. General sowing depth of 2 ~ 3? However, it must also be adapted to local conditions. For example, good sensation, viscous soil, and saline-alkali land can be appropriately shallow, and vice versa. After sowing, timely repression should be carried out so that the seed and the soil will be in close contact.

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