Method of applying base fertilizer to cotton

Introduce several methods of applying base fertilizer for reference. - In the winter and spring unfinished cotton fields, the fertilizer can be evenly spread on the surface and then ploughed. The depth of spring ploughing is 18~20 cm, and most of the fertilizer can be turned into the soil, and then smashed. This way the fertilizer is applied deep, the storage time is long, and the loss is small. In the case of 60 to 80 cubic meters of irrigation water, the fertilizer will not be infiltrated into the groundwater with water. Most of the nutrients are still stored in the soil layer of 1 meter deep for absorption and utilization by cotton roots. The advantage of this method is that the fertilizer is applied deep, the application is even, the soil is solid, and the foot is stored. However, the amount of soil water is large, and areas with poor water resources are inconvenient. Second, squatting first, and applying spring fertilizer after applying fertilizer. This is suitable for areas with water shortages and inconvenient watering. Pay attention to the arable land and be sure to ponder. Otherwise, the soil is loose and unfavorable for emergence. The disadvantage is that the soil with poor soil quality is not conducive to post-cultivation; if fertilization is followed by rotary tillage, try to Deepen to 13~15 cm, then ponder. Third, before the cotton is broadcast, the fertilizer is evenly spread in the soil with a 12-row wheat planter with a line spacing of 15 cm. It should be applied as far as possible, and then the ground will be ground and smoothed, and cotton will be broadcast after two or three days. The advantage is that all the fertilizer is applied to the soil and is evenly distributed; the disadvantage is that the fertilization depth is limited. 4. Before broadcasting cotton, first determine the row size and position, insert the score line, and then spread the fertilizer in the middle of the expected small line, and finally broadcast two rows of cotton on both sides of the fat line. The advantage is that the fertilizer is applied deep and the line spacing is accurate; the disadvantage is that it requires two operations. 5. Seeding and fertilization are carried out simultaneously. Install the fertilizing device on the planter, and stagger the front and rear of the seeding device. At the same time, the fertilizer is applied to the middle of two rows of cotton, the fertilizer is applied deeply, and the cotton seed is shallowly broadcasted; since the seed has not been germinated during fertilization, it can be regarded as the base fertilizer; Good method of applying fertilizer. 6. Deep fertilization between large lines immediately after sowing. Also can be regarded as the base fertilizer. Since fertilizer input accounts for a large proportion of cotton field investment, and the effect of fertilizer efficiency is related to the abundance of cotton production, the method of fertilization is a big issue concerning the efficiency of cotton festival.

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