The quality of fertilization management during the jointing stage is directly related to the changes of the group, the development of the root system, which in turn affects the number of grains and the weight of the grain, which has a great impact on the yield. Therefore, it is necessary to scientifically fertilize according to the seedling condition and sensation.
1. Scientific operation, reasonable pursuit of a large number of elemental fertilizers, three types of weak seedlings in the wheat field, topdressing can be carried out twice. For the first time, when the ground temperature is stable above 3 °C, the application of urea is 5-8 kg; the second time combined with pouring and water saving, 5-10 kg of urea is applied to increase the rate of ear formation, promote the development of small flowers, and increase the number of grains per ear. The first and second types of strong seedlings in the wheat field, the field with the same level of soil fertility can be combined with watering and applying about 15 kg of urea in the watering period to increase the rate of tillering and increase the number of grains. For a type of wheat field with a higher level of soil fertility, it can be combined with watering at the jointing stage, and about 10 kg of urea per mu. For dry wheat fields, about 10 kg of urea should be applied to the acre, and the appropriate amount of diammonium phosphate should be applied. The number of spikes ensures production.
2. Investigate the seedlings and spray the water-soluble fertilizer on the foliage.
Fertilizers commonly used for foliar application can be divided into two categories, one is a large amount of elemental fertilizer with strong water solubility, good absorption and remarkable effect; the other is various water-soluble fertilizers registered by the Ministry of Agriculture. All counties should be sprayed according to the soil fertility level and seedling condition of wheat field to promote wheat growth, improve wheat resistance, and achieve stable yield and high yield. Generally, the wheat field with low fertility level is mainly sprayed with urea and potassium dihydrogen phosphate, and the nutrients are quickly supplemented; the medium and trace elements are lacking. Wheat fields with weak wheat growth or freezing damage are mainly sprayed with amino acids, humic acids and organic water-soluble fertilizers to regulate wheat growth.
1. Scientific operation, reasonable pursuit of a large number of elemental fertilizers, three types of weak seedlings in the wheat field, topdressing can be carried out twice. For the first time, when the ground temperature is stable above 3 °C, the application of urea is 5-8 kg; the second time combined with pouring and water saving, 5-10 kg of urea is applied to increase the rate of ear formation, promote the development of small flowers, and increase the number of grains per ear. The first and second types of strong seedlings in the wheat field, the field with the same level of soil fertility can be combined with watering and applying about 15 kg of urea in the watering period to increase the rate of tillering and increase the number of grains. For a type of wheat field with a higher level of soil fertility, it can be combined with watering at the jointing stage, and about 10 kg of urea per mu. For dry wheat fields, about 10 kg of urea should be applied to the acre, and the appropriate amount of diammonium phosphate should be applied. The number of spikes ensures production.
2. Investigate the seedlings and spray the water-soluble fertilizer on the foliage.
Fertilizers commonly used for foliar application can be divided into two categories, one is a large amount of elemental fertilizer with strong water solubility, good absorption and remarkable effect; the other is various water-soluble fertilizers registered by the Ministry of Agriculture. All counties should be sprayed according to the soil fertility level and seedling condition of wheat field to promote wheat growth, improve wheat resistance, and achieve stable yield and high yield. Generally, the wheat field with low fertility level is mainly sprayed with urea and potassium dihydrogen phosphate, and the nutrients are quickly supplemented; the medium and trace elements are lacking. Wheat fields with weak wheat growth or freezing damage are mainly sprayed with amino acids, humic acids and organic water-soluble fertilizers to regulate wheat growth.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
Stud Bolt
Hebei Qianmu Fastener Manufacturing Co., Ltd , https://www.qmjgjfasteners.com