Application of water-retaining agent in water-saving and high-yield corn
Early drought is a limiting factor in agricultural production in arid areas. In agricultural production, excessive exploitation of groundwater has led to a continuous decline in groundwater levels, and the shortage of water resources is not optimistic. In recent years, with the increasing dependence on rainwater resources, crops have been damaged and crop yields have fallen. If you want to reduce crop yields and reduce agricultural water consumption reasonably, you need to reduce water loss. Using water retention technology to reduce water loss can achieve this goal, and the use of agricultural water retention agents is one of the ways to reduce water loss.
Water-retaining agent, also known as soil water-retaining agent, super-absorbent, and humectant, is a new type of polymer water-absorbing material developed and produced by high-tech. It contains a large number of hydrophilic genes and excellent molecular structure, which can absorb more than Water is hundreds of times its own weight and can be slowly released and repeatedly absorbed. The water retaining agent can effectively improve the water and fertilizer retention capacity, increase the utilization rate of water and fertilizer, at the same time improve the soil structure, increase the soil permeability, and create a good growth environment for plants. The working principle of water retention agent is to provide water to plants by improving the root soil environment of plants, which can reduce the loss and evaporation of surface water when it rains or irrigate farmland, thereby prolonging the emergence time of plant chrysanthemum, so that the frequency of irrigation is also reduced. Water use efficiency can be improved. The water retaining agent can also release the water stored in the drought and slowly release it for the plant to use after the growth and transpiration consumes water.
So as to provide better water conditions for plant growth.
In response to the call to reduce the exploitation of groundwater, we must try our best to achieve zero watering during the corn planting process, which requires the use of scientific natural precipitation. When rainfall occurs, the water-retaining agent that has been applied to the soil can quickly absorb rainwater, watering water, and slowly supply it to the corn roots when the plants need it, and can supplement the water demand of the corn plants in the dry season. The water absorbed by the water-retaining agent cannot be squeezed out by simple physical methods. It has strong water retention, can release and absorb water repeatedly, and has certain functions of heat preservation and ventilation. If used in conjunction with pesticides and fertilizers, they can be released slowly, improve utilization, reduce environmental pollution, and reduce corn planting costs. Water retaining agent can quickly absorb, store, and release water and nutrients to meet the growth needs of corn plants. At the same time, it can improve soil permeability, increase soil vitality, and reduce soil compaction. It is highly environmentally friendly and saves moisture.
Water, improved soil structure, long service life, large water absorption, fast water absorption, fertilizer absorption, fertilizer preservation, and fertilizer saving.
The amount and method of use of water-retaining agent on corn: 1 ~ 2 kg per mu. Mix the water-retaining agent with fine soil. After machine sowing, the sowing ditch cannot be completely filled, and the water-retaining agent can be evenly spread into the sowing ditch. Then fill the trench with soil and water it. In order to make the water-retaining agent bury deeper and more convenient to operate, the water-retaining agent is mainly mixed with the seed fertilizer and applied together. The specific operation method is as follows: Weigh a certain amount of fertilizer according to the planting area as the seed fertilizer. Spread out thinly. Spray evenly on the surface of the fertilizer with a sprayer-after all times (splashing or watering on the fertilizer is strictly prohibited), apply 1 ~ 2 kg of water retaining agent per acre, mix with the corresponding weight of water retaining agent, and continuously stir for 3 to 5 times. Stirring,-while using a sprayer to spray misty water for 2 to 3 times, until they are evenly attached to each other without agglomeration. Pour the mixed seed fertilizer with water retention agent into the seed fertilizer box of the planter
In, applied to the soil together with the seeds.
Water-retaining agent has obvious promoting effect on the growth of maize, mainly as follows: it can increase the emergence rate of maize and promote the growth and development of the seedling stage; the drought resistance of maize is improved, and the emergence of chrysanthemum during growth is delayed; it promotes the upper part of maize plant The growth of corn, the accumulation of organic matter increased significantly, the height of the plant increased, the thickness of the stem increased, the area of the light table increased, and the overall corn metabolism was maintained at a normal level of metabolism; it has a significant role in promoting the growth of corn in arid areas. The use of corn in the seedling stage can promote its faster germinating and rooting, and the plant stage of corn can prevent it from withering, and it also has a significant role in promoting the growth of the root system; the harvested corn ears are large and large, and the use of high-quality water-retaining agents can increase the yield of corn by 10% The above is even more; improve the soil structure, so that the heavy soil, the sandy soil with leaking fertilizer and the secondary saline-alkali soil can be improved, the air permeability of the soil is improved, and the soil activity is increased.
Strength, reduce soil compaction; promote the growth and reproduction of soil microorganisms, and improve the utilization efficiency of soil organic matter.
Water retaining agent has a very important effect on improving soil physical properties, enhancing soil water absorption, water retention and fertilizer retention, and promoting crop growth and development. Water retaining agent has huge development potential and broad application prospects in water-saving agriculture. Through the research on the application technology and effects of water-retaining agents in agriculture, a set of water-retaining and water-saving technology systems centered on the application of water-retaining agents will be formed. Agriculture plays an important role.