Nowadays, the concept of straw returning is deeply rooted in the hearts of the people, and a large number of straw grinders are put into use every harvest season. These machines break up crop straws such as corn, soybeans, and wheat and return them to the soil. However, the disadvantages of returning straw to the field cannot be ignored, and if it is not used properly, the straw returned to the land will not increase soil fertility, but may also cause a series of problems.
First of all, we need to make it clear that the basic starting point of straw returning is to avoid air pollution caused by straw burning. The ash of the burned plants seems to have real fertility. Straw returning to the field will only have the effect of increasing fertilizer and yield under appropriate conditions.
Rational application of straw is a win-win situation for agro-ecology.
The disadvantages of straw returning are mainly reflected in the following aspects. First, there is the question of quantity. After returning to the field, the straw needs to be decomposed by microorganisms, which compete with the crop for nutrients and may even lead to a reduction in crop yield. Generally speaking, the amount of straw crushed and pressed to the field should be controlled within 500 kg of one acre of land, and at the same time, it should be evenly distributed. In order to improve the utilization rate of straw returning directly to the field, some nitrogen fertilizer can even be released when returning to the field.
The second is the fineness of crushing straw returning to the field. When the straw is crushed, it should be broken as fine as possible. After the straw is returned to the field, it is easy to make the soil too loose, so it needs to be watered in time to ensure that the soil and seeds are closely combined to ensure the germination rate of crops. In addition, the crushing degree of straw returning to the field should be controlled at 35 cm below to maintain a reasonable topsoil density.
Finally, there is the problem of pests and diseases after the straw is returned to the field. Straw usually contains eggs and some germs, and these pests will not disappear by crushing, but will be buried in the ground with the straw returning to the field, and will break out again the next year. At present, there is no effective solution to the problem of insect pests caused by straw returning, so we can only choose disease-free straw returning to the field as much as possible.
Straw: A regenerative treasure of discarded resources.
Do we have any suggestions for making better use of these misplaced straw resources?
Straw waste is not a useless thing, but a potential treasure in the agro-ecosystem. Through scientific and rational utilization, soil fertility can be improved and crop growth can be promoted without increasing the burden on the environment. For example, fermenting and composting straw to make organic fertilizer can not only solve the problem of microorganisms competing for nutrients, but also effectively improve soil structure. In addition, straw can be used together with other agricultural wastes to produce biomass energy, providing clean energy for rural areas while reducing the use of fossil energy.
Scientific and technological innovation helps straw recycling.
In order to make better use of straw resources, the support of scientific and technological innovation is needed. The research and development of efficient straw treatment technologies, including advanced straw returning machinery and fine crushing processes, can increase the degradation rate of straw and reduce the negative impact on farmland. In addition, the use of biotechnology to degrade harmful substances in straw and reduce the incidence of pests and diseases is also an important research direction.
Epilogue. Straw returning is an important farmland management measure, but it needs to be handled with caution in practice. By reasonably controlling the number of straw returned to the field, the fineness of crushing, and improving the recycling rate of straw with the help of scientific and technological means, the potential value of straw can be maximized and a win-win situation for the agricultural ecosystem can be realized. Straw is no longer an abandoned waste, but a green driving force for the sustainable development of agriculture.
Straw returning has always been a controversial topic in the field of agriculture, and the article details the advantages and disadvantages of straw returning and possible improvement methods. First of all, the article emphasizes that the original intention of straw returning to the field is to reduce the air pollution caused by burning straw, which is a very reasonable starting point for environmental protection. However, the article also fully points out the possible problems of straw returning to the field, which allows the reader to fully understand the pros and cons of this agricultural practice.
In my opinion, the point of view of the article is very pertinent, which not only affirms the environmental protection role of straw returning, but also objectively analyzes the problems. In particular, the detailed analysis of the number of straw returned to the field, the fineness of crushing, and the pests and diseases makes it easier for readers to understand the challenges that may be faced in practice.
For straw, which is considered to be a waste resource, the article puts forward good suggestions for the use of straw, such as fermenting and composting it to make organic fertilizer, or producing biomass energy with other agricultural wastes. These recommendations can not only effectively solve the problem of microbial competition for nutrients, but also provide a more sustainable development path for agriculture.
In terms of scientific and technological innovation, the paper's recommendations are also very practical, emphasizing the importance of developing efficient straw treatment technologies. By introducing advanced machinery and delicate processes, the degradation rate of straw can be increased and the negative impact on farmland can be reduced. This point is especially worthy of in-depth study and practice by experts in the field of agricultural science and technology.
Overall, the article gives practical and feasible solutions while delving into the problem. For the win-win situation of the agricultural ecosystem, this paper provides positive thinking, especially the recycling of straw resources, and provides a new direction for the sustainable development of agriculture. In the future, it is hoped that the agricultural field can pay more attention to scientific and technological innovation, and further promote the sustainable use of straw resources through continuous improvement of farmland management measures.
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