According to the soil fertility status of cultivated land, wheat yielding rules and yield requirements. Summarize the fertilization principles of the following three wheats:
(1) Organic fertilizers are combined with inorganic fertilizers under Organic Fertilizer-based conditions. Organic fertilizer has a wide range of fertilizer sources, low cost, full nutrients, long fertilizer efficiency, contains many organic matter, and can improve soil. It can not only increase production in the same year, but also ensure annual production increase, continuously improve soil fertility, and enhance agricultural production stamina, but Organic fertilizers have low nutrient content, large dosage, and slow fertilizer efficiency. When wheat is in urgent need of certain nutrients, it must be supplemented with chemical fertilizers to complement each other. In order to truly improve soil fertility and continue to increase production.
(2) Apply sufficient base fertilizer and rationally apply seed fertilizer and top dressing. The amount of base fertilizer generally accounts for 60%-80% of the total fertilization amount. Applying sufficient base fertilizer plays an important role in promoting early seedling growth, cultivating strong seedlings before winter, increasing effective tillering rate and stalking and stimulating the ear. Mainly, with nitrogen and phosphorus fertilizers. Applying sufficient base fertilizer can not only supply nutrients continuously throughout the growing period of wheat, but also have a good effect on controlling the early growth of wheat plants and preventing premature aging. At the same time, it can also improve soil and promote the reproduction and activities of soil microorganisms, thus continuously improving Soil fertility.
On the basis of the application of the base fertilizer, reasonable topdressing is a measure to make full use of the fertilizer source to increase the yield. The so-called rational topdressing is based on the demand for fertilizer in the whole life of wheat, and timely meets the demand for fertilizers in crops. The law of absorbing fertilizer during the growth period is: the most nitrogen fertilizer is absorbed before winter, and the phosphorus and potassium are the second. In order to meet the nitrogen fertilizer immediately after the emergence of wheat, 1.5~2.5 kg of urea is generally applied as seed fertilizer in production. Pre-winter tillering and promoting the growth of secondary roots have a good effect. During wintering to regreening, nitrogen fertilizer is still absorbed more, and phosphorus and potassium begin to increase significantly. Therefore, fertilization in wintering period, except for a small amount of nutrients needed for slow growth in winter, basic The spring is a function of spring, which promotes the multi-rooting of wheat, returns to green early, consolidates the tillering before winter, and increases the rate of tillering before winter. If there is no shortage of fertilizer, it can not be applied. During the period from the re-greening stage to the jointing stage, the absorption of potassium is the most, and the absorption of phosphate fertilizer increases sharply. Because there is phosphate fertilizer in the base fertilizer, if the growth is more prosperous in this period, it may not be applied. If it is lacking, the green fertilizer should be applied early to increase the effective tillering and increase the rate of ear formation. In the heading stage of jointing stage, the absorption of nitrogen, phosphorus and potassium in wheat reached the highest peak. Fertilization in this period is a key period to increase the number of grains per spike. It is a high-yield, and it is necessary to supply sufficient water and fertilizer. In addition, nitrogen fertilizer rearing technology is the key to improving the quality of high quality wheat. At the heading and maturity stage, the absorption of nitrogen, phosphorus and potassium in wheat generally decreased, but in addition to potassium, nitrogen and phosphorus continued to be absorbed until maturity, especially phosphate fertilizer, which can be filled with grain and grain, so that the grain of wheat is multi-grain. Therefore, in order to meet the needs of phosphate fertilizer in the later stage, root dressing is often adopted, which has become a powerful measure to increase wheat yield.
(3) The base fertilizer should be applied in layers, and the fertilizer should be applied in depth. The stratified application of base fertilizer refers to the application of fertilizer in two layers. After the first application of organic fertilizer, deep ploughing and burying, the second time with good quality organic fertilizer combined with application of quick-acting fertilizer, after application, shallow ploughing and hoeing to make fertilizer Evenly distributed in the soil, or applied when ditching, so that wheat can get some quick-acting nutrients in the seedling stage, and the fertilizer buried in the middle and lower layers of the soil can ensure the needs of the late growth stage of wheat.
When fertilizer is used as top dressing, it is better to apply 5~10cm deep, especially nitrogen fertilizer such as ammonium bicarbonate, ammonia water and other volatile nitrogen fertilizer, it must be applied deep, deep application can make fertilizer covered by mud, prevent evaporation and loss The fertilizer effect is stable, which is beneficial to the root system absorption, improve the utilization rate of chemical fertilizers, and fully exert the fertilizer effect. The deep application can generally increase the fertilizer efficiency by 10% to 30%.
The methods for deep application of chemical fertilizers are as follows:
(1) Deep application of base fertilizer: combined with plowing the ground, cultivating while cultivating, then finely leveling.
(2) Fertilizer bottom application: In the case of good sensation, use the seed fertilizer planter to concentrate on the underside of the seed or on the lower side of the seed. The nitrogen fertilizer can also be used as the seed fertilizer together with the decomposed organic fertilizer and phosphate fertilizer, but the seed fertilizer Don't be too close to the seeds to avoid burning.
(3) Topdressing application or acupoint application: Ammonium bicarbonate, ammonia water and urea should be applied by ditch application or acupoint application, using fertiliser, ammonia water, liquid fertilizer, etc., and applying nitrogen fertilizer to 5~10 cm or less. In the soil layer, pay attention to the application of uniformity, and the application of the ditch or the hole to the soil can increase the fertilizer efficiency by about 30%.
(1) Organic fertilizers are combined with inorganic fertilizers under Organic Fertilizer-based conditions. Organic fertilizer has a wide range of fertilizer sources, low cost, full nutrients, long fertilizer efficiency, contains many organic matter, and can improve soil. It can not only increase production in the same year, but also ensure annual production increase, continuously improve soil fertility, and enhance agricultural production stamina, but Organic fertilizers have low nutrient content, large dosage, and slow fertilizer efficiency. When wheat is in urgent need of certain nutrients, it must be supplemented with chemical fertilizers to complement each other. In order to truly improve soil fertility and continue to increase production.
(2) Apply sufficient base fertilizer and rationally apply seed fertilizer and top dressing. The amount of base fertilizer generally accounts for 60%-80% of the total fertilization amount. Applying sufficient base fertilizer plays an important role in promoting early seedling growth, cultivating strong seedlings before winter, increasing effective tillering rate and stalking and stimulating the ear. Mainly, with nitrogen and phosphorus fertilizers. Applying sufficient base fertilizer can not only supply nutrients continuously throughout the growing period of wheat, but also have a good effect on controlling the early growth of wheat plants and preventing premature aging. At the same time, it can also improve soil and promote the reproduction and activities of soil microorganisms, thus continuously improving Soil fertility.
On the basis of the application of the base fertilizer, reasonable topdressing is a measure to make full use of the fertilizer source to increase the yield. The so-called rational topdressing is based on the demand for fertilizer in the whole life of wheat, and timely meets the demand for fertilizers in crops. The law of absorbing fertilizer during the growth period is: the most nitrogen fertilizer is absorbed before winter, and the phosphorus and potassium are the second. In order to meet the nitrogen fertilizer immediately after the emergence of wheat, 1.5~2.5 kg of urea is generally applied as seed fertilizer in production. Pre-winter tillering and promoting the growth of secondary roots have a good effect. During wintering to regreening, nitrogen fertilizer is still absorbed more, and phosphorus and potassium begin to increase significantly. Therefore, fertilization in wintering period, except for a small amount of nutrients needed for slow growth in winter, basic The spring is a function of spring, which promotes the multi-rooting of wheat, returns to green early, consolidates the tillering before winter, and increases the rate of tillering before winter. If there is no shortage of fertilizer, it can not be applied. During the period from the re-greening stage to the jointing stage, the absorption of potassium is the most, and the absorption of phosphate fertilizer increases sharply. Because there is phosphate fertilizer in the base fertilizer, if the growth is more prosperous in this period, it may not be applied. If it is lacking, the green fertilizer should be applied early to increase the effective tillering and increase the rate of ear formation. In the heading stage of jointing stage, the absorption of nitrogen, phosphorus and potassium in wheat reached the highest peak. Fertilization in this period is a key period to increase the number of grains per spike. It is a high-yield, and it is necessary to supply sufficient water and fertilizer. In addition, nitrogen fertilizer rearing technology is the key to improving the quality of high quality wheat. At the heading and maturity stage, the absorption of nitrogen, phosphorus and potassium in wheat generally decreased, but in addition to potassium, nitrogen and phosphorus continued to be absorbed until maturity, especially phosphate fertilizer, which can be filled with grain and grain, so that the grain of wheat is multi-grain. Therefore, in order to meet the needs of phosphate fertilizer in the later stage, root dressing is often adopted, which has become a powerful measure to increase wheat yield.
(3) The base fertilizer should be applied in layers, and the fertilizer should be applied in depth. The stratified application of base fertilizer refers to the application of fertilizer in two layers. After the first application of organic fertilizer, deep ploughing and burying, the second time with good quality organic fertilizer combined with application of quick-acting fertilizer, after application, shallow ploughing and hoeing to make fertilizer Evenly distributed in the soil, or applied when ditching, so that wheat can get some quick-acting nutrients in the seedling stage, and the fertilizer buried in the middle and lower layers of the soil can ensure the needs of the late growth stage of wheat.
When fertilizer is used as top dressing, it is better to apply 5~10cm deep, especially nitrogen fertilizer such as ammonium bicarbonate, ammonia water and other volatile nitrogen fertilizer, it must be applied deep, deep application can make fertilizer covered by mud, prevent evaporation and loss The fertilizer effect is stable, which is beneficial to the root system absorption, improve the utilization rate of chemical fertilizers, and fully exert the fertilizer effect. The deep application can generally increase the fertilizer efficiency by 10% to 30%.
The methods for deep application of chemical fertilizers are as follows:
(1) Deep application of base fertilizer: combined with plowing the ground, cultivating while cultivating, then finely leveling.
(2) Fertilizer bottom application: In the case of good sensation, use the seed fertilizer planter to concentrate on the underside of the seed or on the lower side of the seed. The nitrogen fertilizer can also be used as the seed fertilizer together with the decomposed organic fertilizer and phosphate fertilizer, but the seed fertilizer Don't be too close to the seeds to avoid burning.
(3) Topdressing application or acupoint application: Ammonium bicarbonate, ammonia water and urea should be applied by ditch application or acupoint application, using fertiliser, ammonia water, liquid fertilizer, etc., and applying nitrogen fertilizer to 5~10 cm or less. In the soil layer, pay attention to the application of uniformity, and the application of the ditch or the hole to the soil can increase the fertilizer efficiency by about 30%.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
N (Nitrogen), P(Phosphorus) and K (Potassium) are three essential nutrients for plant growth. Their availability inthe form of fertilizers represents a key factor in the overall question of global food security as we move towards a population of 9 billion. Moreover, over 90% of population growth between 2010and 2050 will occur in developing economies. Over 90% of the 1 billion poorest people live in these economies where food security isand will remain a serious challenge unless appropriate policy and technical measures are taken to ensure fertilizer security.
Compound Chemical Fertilizer,NPK Fertilizer,Chemical Fertilizer Powder
Hebei Monband Water Soluble Fertilizer Co., Ltd. , http://www.wsfertilizer.com