Why Is Spring Wheat Yield Low? Latest Analysis of the Causes
Wheat cultivation is very common in China, and wheat is suited to growing in relatively cool places. It is divided into spring wheat and winter wheat, and the area planted with spring wheat is relatively large. When growing spring wheat, yield is a question everyone cares about greatly. However, many people's spring wheat yields are not very ideal. So what are the causes of low spring wheat yield? Below, the editor will briefly introduce them to you. Let's take a look together!
1. Rapid temperature rise in spring
Under temperature conditions of 5-20 degrees, spring wheat takes about 1-3 weeks to complete vernalization development. However, if in spring the temperature rises quickly and the average temperature is higher than 20 degrees, then the development of wheat during the vernalization stage will be hindered. This leads to insufficient tillering, and the quality is not very good either, and the number of wheat ears will also decrease. This in turn causes insufficient secondary roots, poor development, shallow distribution, and weakened ability to absorb fertilizer and water. Spring wheat is also susceptible to drought stress, and in the later growth stage it is prone to fertilizer loss and premature senescence, naturally causing wheat yield to decline.
2. Climatic causes
When growing spring wheat, after entering May-June, it is generally the booting and grain-filling period of spring wheat. If it encounters a climate environment of high temperature, drought and wind, then the dry hot wind environment will cause premature senescence in wheat. If the temperature is too high, it will strengthen the respiration of wheat, causing excessive consumption of nutrients. This inhibits the absorption and transport of substances in the wheat plant, thereby causing problems such as small wheat ears and light grains, leading to a decline in spring wheat yield and affecting planting benefits.
3. Insufficient fertilizer and water
During the growth process of spring wheat, many people have the problem of insufficient farmyard manure or even no application of farmyard manure. When applying base fertilizer, it is also directly broadcast all over the soil, and then no more topdressing is done in the middle and late stages of wheat growth. This leads to insufficient soil organic matter content, poor fertility, and a short period of fertilizer effectiveness, making fertilizer loss very likely to occur. This causes premature senescence of wheat, small ears and low yield. Moreover, spring wheat is also a water-loving crop, and generally needs watering about 5 times during the growth period. If there is a lack of water, then the lack of water and fertilizer in wheat will seriously affect the growth of wheat, thus forming weak seedlings, causing small ears and few grains, and reducing yield.
4. Light causes
Light is also a main factor causing low spring wheat yield. When growing wheat, if the permeability is poor, it will affect the growth of wheat and prevent spring wheat from carrying out photosynthesis normally. This causes low photosynthetic intensity, and most of the nutrients produced by photosynthesis will be consumed by the vegetative growth of wheat. There are too few nutrients in the reproductive organs, causing a long development time and slow growth of the reproductive organs, thus causing a decline in yield.
The above is a brief introduction to the causes of low spring wheat yield. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!