The cultivation of modern agricultural vegetables is dominated by large-scale cultivation, and greenhouse-based vegetable cultivation is one of the more widely applied techniques in the country. By creating a rational planting environment, vegetables can grow in different climates and at different temperatures, free from the effects on traditional environments and climatic conditions. Such cultivation has the distinct advantage of producing anti-season vegetables, meeting multiple consumer needs and raising farmers ' incomes。
I. Development of the scale of production
The development of modern agriculture is closely related to the needs of the population and agricultural production is growing on a larger scale。
The need for modern agricultural development has also led to the scaling up of vegetable cultivation. This requires greater integration and utilization of land resources by the technical staff involved, for example, by replacing manpower with mechanical equipment to make production larger and more efficient, depending on crop characteristics and realities. The development of scale production can help reduce planting costs, especially human costs, and can also effectively increase productivity. At the same time, this development model helps to establish a management process for vegetable cultivation and to develop a scientifically sound pattern of cultivation, laying the foundations for the scientific and industrial development of modern agricultural vegetable cultivation. In addition, the scaling up of production has helped to promote innovation and the development of vegetable cultivation technologies, extending it to all regions。
Ii. Precision and extension
Modern science and technology are developing rapidly and agricultural production and science and technology are being integrated. High-technology industrialization is a feature of modern agriculture, and modern agro-vegetation has been streamlined and promoted. In such cases, farmers are primarily concerned with market demand. Market demand for vegetables can determine the type of vegetables to be grown, and can further safeguard the rationality and scientific nature of the introduction of vegetable farming technologies, improve the quality of vegetables and adequately meet the needs of the population. Thus, when promoting it, due consideration should be given to geographical circumstances, popular preferences, dietary habits and soil climates。
Iii. Choosing the appropriate large sheet film
The cultivation of modern agricultural vegetables is dominated by large-scale cultivation, and greenhouse-based vegetable cultivation is one of the more widely applied techniques in the country. In the construction of the sheds, the film is the most basic and important component. There is a need to select filamental membranes that are highly luminous, warm, long-lived and non-toxic, and which are currently the most common meeting of these requirements on the market. They can be used to create a suitable environment for the growth of vegetables, under which they can be cultivated and given sufficient sunlight to ensure their quality. It is also important to ensure that vegetables have an environment that controls temperature and humidity and, in exceptional circumstances, can be assisted in vegetable growth by manual manipulation。
Iv. Reasonable ventilation in the shed
The shed needs ventilation to facilitate air circulation in the shed, reduce the content of harmful gases, safeguard air quality in the shed, provide conditions for light co-operation of vegetables, effectively promote the breathing of vegetables and ensure their quality. Reasonable ventilation in the sheds must be based on the type of vegetables and the temperature changes within the sheds, and control of the duration, frequency and intensity of the ventilation in order to ensure temperature and humidity in the sheds and to create a suitable environment for the growth of vegetables. However, if the temperature outside the shed varies significantly from the temperature in the shed, care should be taken of the ventilation time to avoid the death of vegetables due to large temperature differentials。
Control of light intensity
The growth of all green plants requires adequate light, as do vegetables, which will directly affect their yields and quality. In case of insufficient light, appropriate manual light can be filled. The intensity of light is affected by the climate, and in winter and spring, vegetables receive lower light intensity and lower temperatures, so that, in order to keep the shed warm, technicians typically build an additional layer of green grass curtains on the shrub to ensure the temperature in the shed. The use of green grass curtains is based on the fact that its cover reduces light and, combined with better perceiving filaments, provides a better light environment for the growth of vegetables in the shed and avoids the adverse effects of low temperature and low light on the vegetables; in the rainy and snowing days, the light intensity of the shed will also be significantly reduced, in which case artificial light will be required to remove snow in a timely manner, increase light perceiving, or introduce some reflection。
Vi. Rational fertilization and irrigation of vegetables
Vegetable cultivation requires not only adequate light and ventilation, but also rational fertilization and irrigation. Fertilizers are usually based on organic and base fertilizer. The type of soil, the state of the soil, the type of vegetables to be grown are to be fully taken into account in the application of fertilization, and the appropriate number and proportion of fertilization is to be selected on the basis of actual circumstances. Attention should also be paid to the trace elements in fertilizers and to the timely replenishment of missing elements of vegetables so that they can grow healthy. In irrigation, care should be taken to preserve soil thickness and laxity to ensure soil permeability and ventilation and to ensure that vegetables absorb nutrients。
Vii. Pest management
In agriculture, measures to combat pests and diseases generally include physical and chemical control, supported in general by physical and chemical control, which can greatly improve the quality of prevention. Controlling humidity and temperature in large sheds through physical control, reducing the likelihood of parasites and preventing the continued spread by removing leaves from crops in a timely manner; chemical control is the use of chemicals, which technicians generally choose to spray low-intensity and low-residency pesticides to disinfect them and avoid affecting the quality of vegetables. In some cases, there is also a need to classify pesticide types and pest types to ensure that vegetables can grow well during production。
As the standard of living continues to rise, the demand for vegetables becomes ever more variable, so that, in the process of growing vegetables, the use of rational planting methods can free them from multiple climatic and environmental impacts and artificially create an appropriate environment in which the requirements for vegetables can be met over different seasons. In order to improve the quality and production of vegetables and to develop modern agriculture, it is important to focus on the characteristics of modern agricultural vegetable cultivation and the technical aspects of cultivation. In order to raise the level of agricultural production, technical staff should establish complete and rational management processes and systems to ensure the efficient operation and rational use of the technologies used to ensure the quality of vegetable production。
The article, which was edited by the manager of the wide source greenhouse, was launched today, and if a greenhouse offer is required, or if information is available about greenhouse stock farming, attention can be given to today's headlines in the wisdom room, either from the media or from the private letter, the wisdom room, which, if reproduced, should be indicated. Thank you for your cooperation。
