Cotton in the cotton area due to fertilization

In recent years, wheat production in some major cotton-producing areas has changed, mainly in three aspects. First, the sowing period is generally postponed; the second is that some wheat fields are not planted at the time of planting or the base fertilizer is insufficiently applied; the third is that the wheat heading and filling stage often occurs locally or in pieces. In response to these problems, the production method needs to change the fertilization method according to local conditions.

For the late-release delayed-release wheat seedlings, the available nitrogen fertilizer was sensitive to nitrogen at the seedling stage, and the late-sowed late-wound wheat seedlings were less tiller, the individual development was insufficient, and the total number of stems per acre was reduced, which directly affected the yield. For this type of wheat field, one must grab the smashing and smashing the fertilizer, and apply 8 kg of urea per mu. Second, according to the seedlings, the fertilizer should be applied, 25 kg of ammonium bicarbonate per acre; the third should be sprayed from the heading to the milking stage. Potassium dihydrogen phosphate 1 to 2 times, each time 100-150 grams per acre to increase the weight of 1000.

The wheat soil with good soil fertility and long-term fertility control has good soil texture and strong fertility. In addition, the amount of peach fertilizer applied to the former cotton field is large, and there are many residual fertilizers in the field. Mai Miao is prosperous. If the weather occurs during the heading and filling period, the plants will easily fall. For this type of wheat field, the amount of fertilizer should be controlled.

Differentiating the seedlings and promoting the control of the weaker wheat fields can be carried out by spraying Huimanfeng active liquid fertilizer in a timely manner to promote early tillering, early heading and early maturity of wheat. For the overgrown wheat field, you can use 15% paclobutrazol WP 40-60 g or 5% uniconazole WP 25-30 g per acre, add 40-40 kg of water spray, control the growth and prevent plant lodging. .

(夏岚)