Early sowing potato planting system and method for planting early sowing potatoes by using system

Abstract

The invention discloses an early sowing potato planting method. The early sowing potato planting method comprises the following steps of 1) land selection and preparation; 2) winter irrigation and greenhouse building; 3) base fertilizer applying; 4) seed treatment; 5) sowing: after rotary tillage of the land, using a row marker to mark a ridging datum line, then forming ridges with the row spacing of 90cm and the height of 25cm, and forming water diversion furrows which are slightly lower than the ridges at intervals of 5-6m between the ridges; furrowing and sowing on the ridges; covering grass; performing film covering; and building small arched sheds and covering films; 6) field management; 7), pest control; and 8) harvesting. According to the method, a greenhouse planting technology is adopted, planting grooves are dug in the ridges, after seed potatoes are sown, straw is laid in the planting grooves, black films cover the planting grooves, the small arched sheds are built, a three-film heat preservation structure is formed, the temperature needed by seedling emergence and normal growth of the potatoes is ensured, meanwhile, direct sunlight is resisted through the straw, potato seedlings are prevented from being damaged by the sunlight, the temperature in the film is regulated and controlled, the relative stability of the temperature in the film is maintained, and the phenomena of seedling burning and seedling freezing are avoided.

Description

[0001] This application is a divisional application with an application date of May 5, 2016, an application number of 201610294265.6, and an invention title of "A Method for Planting Early Sowing Potatoes". The applicant is Gansu Kaikai Agricultural Science and Technology Development Co., Ltd. technical field [0002] The invention belongs to the technical field of vegetable planting, and in particular relates to a system for planting early-sowed potatoes and a method for planting early-sowed potatoes by using the system. Background technique [0003] Potato has been cultivated in my country for more than 400 years. It is the fourth largest cultivated crop after wheat, rice and corn. With the advantages of strong adaptability and wide distribution, coupled with my country's policy support and scientific and technological support, it has become the fastest growing crop industry in my country in recent years. [0004] With the development of the potato industry, the competition...

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Problems solved by technology

[0006] In the technical solution disclosed in the above-mentioned patent CN102893791A, the seed potatoes are sown and covered with plastic film, and a shed with a height of 1.5-1.8 m is built. This is a traditional greenhouse cultivation method. Although potatoes can be harvested in advance, the shed is too high and is a simple double The film (ie mulch film and shed film) makes the heat preservation effect not meet the requirements of potato growth, so the emergence rate is relatively low

In the technical scheme disclosed by CN105409529A, seed potatoes are covered with plastic film after sowing, and two arch sheds of different sizes are built. The small arch shed is covered with film and nested in the large arch shed film, and three films are used for heat preservation to meet the growth needs of potatoes. Due to the three-membrane structure, when the temperature rises, the temperature inside the membrane is higher than the potato growth requirement, and the shed needs to be opened when the temperature is lowered, which increases the risk of damage to potato seedlings by external temperature, which is not conducive to the growth of potatoes.

However, the seed potatoes are sown on the straw, which is equivalent to an overhead structure. Direct sunlight can damage the potato seedlings, and when encountering rodent damage, a large area of ​​potato seedlings will die from the soil. cost

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