Hammered Aluminium Sheet,Aluminium Sheet Price,Sublimation Aluminum Sheet Aluminum Engeering (Ji'nan) Company Ltd. , http://www.sdaluminumcoil.com
Wheat needs more fertilizer. Each 100 kg of wheat kernels requires about 3.0 kg of pure nitrogen, 1.25 kg of phosphorus, and 2.5 kg of potassium. The absorption varies with variety and yield level. The high quality and high yield of wheat, in addition to a balanced amount of base fertilizer, scientific and rational topdressing is very important, especially in this year's wheat is generally prosperous, scientific topdressing is more important.
Wheat is prosperous and endangered: First, it is susceptible to freezing damage. The growth process of Wangmiao is accelerated, the vernalization stage is terminated early, the jointing is advanced, and the cold resistance of wheat is reduced. In winter and early spring, in case of low temperature cold wave, the main stem and big tiller are easy to freeze. Second, Wang Miao easily transformed into weak seedlings. Because the leaves and leaf sheaths grow vigorously, they consume a lot of nutrients and will turn into weak seedlings after a period of time. Third, the large population of Wang Miao will cause depression in the field. The ventilation and light transmission between the wheat plants is poor, the stems are weak, and it tends to fall during the late growth period, and it is easy to cause various diseases.
Second, the current problems of farmers' topdressing:
(1) Partially chasing nitrogen fertilizer: Some farmers friends used to apply a large amount of pure nitrogen fertilizer such as urea and ammonium bicarbonate when they were topdressing wheat. This kind of fertilizer not only has large loss, low utilization rate, but also excessive application of nitrogen fertilizer, excessive supply of nitrogen, easy wheat. The performance is that the leaves are hypertrophy, prolonged, and the stems are weak. In the later stage, the leaves are dark green, greedy, late-maturing, lodging, and susceptible to diseases. Therefore, excessive application of nitrogen fertilizer can easily lead to a poor harvest of wheat, and only timely supply of nitrogen nutrition can ensure high yield and stable yield of wheat.
(2) Ignoring Potassium Fertilizer: Potassium nutrition can improve the resistance of wheat to disease, drought and frost resistance, and promote the stalks to be thick, tough, lodging, and normal yellowing of wheat. On the prosperous land of wheat, the application of potassium fertilizer will significantly reduce the harm caused by prosperity and reduce the loss of production. In addition, in the early stage of grain filling, the effect of spraying potassium fertilizer on the foliar surface is obvious. Therefore, the proportion of potash should be paid attention to when topdressing.
(3) Lack of trace element nutrition: Trace element nutrition belongs to the regulator of wheat growth process, but plays an important role in wheat metabolism, organ production, organic matter synthesis and transport and other physiological and biochemical processes. For example, when wheat is deficient in zinc, the wheat seedlings are not long-term dwarfed. The jointing stage of the wheat plants can not be extracted, the plants are short and the roots are underdeveloped; when the wheat is deficient in boron, the ears are not. Therefore, the appropriate amount of supplements of trace element fertilizers such as the lion horse brand foliar fertilizer "caulis", small investment, significant increase in production, is an important part of topdressing, can not be ignored.
Third, fertilizer requirements for wheat topdressing:
Formulated with high nitrogen, high potassium and low phosphorus, the nutrient release rate is moderate, easy to absorb, fertility is sufficient, and there is stamina.
Fourth, the brand recommendation:
Zhongde brand fertilizer is a good fertilizer with guaranteed quality. Zhongde Fertilizer (Yantai) Co., Ltd. is a German-owned enterprise. The Zhongde brand fertilizer produced by the factory adopts the fertilizer formula designed by German agricultural experts for rural China, and has two series of quick-acting fertilizer and long-acting fertilizer.
The outstanding features of Zhongde brand fertilizer are:
1. Selection of materials. The potassium source uses the famous German Red Bull brand potash. Red Bull brand potassium fertilizer has high potassium content, good water solubility, easy absorption of wheat, high utilization rate, and can effectively supplement potassium nutrition.
2. The total nutrient content is high (generally about 50%), and the utilization rate is high. The nitrogen source mainly comes from large-grain urea (some special formulas have added the appropriate amount of German lion horse brand calcium ammonium nitrate and ammonium sulphate). Nitrogen slow-acting agent is added to the large-grain urea, and the release rate of nitrogen nutrients is moderate. In the early stage, the fertilizer can be avoided due to the excessive release of fertility, and the crop can not be absorbed. The nutrient supply can be kept stable and lasting, and the utilization rate is higher than the average. Small granular urea is more than 20% higher. This fertilizer has long-lasting effects and is suitable for long-term crops such as wheat and cotton.
3. Various formulas, both high-phosphorus and high-potassium formula suitable for wheat as base fertilizer, and high-nitrogen and high-potassium formula suitable for topdressing, such as Zhongde compound fertilizer 30-5-14, 32-0-18, 30- 8-12 and so on.
Source: Rural Volkswagen
Wheat package fertilization and topdressing technology
First, the fertilizer characteristics of wheat:
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】