Wheat spring fertilizer application method

Returning green manure when the wheat seedlings begin to return to green when dressing, can consolidate wheat before winter tiller, increase spring tiller, and accordingly increase the number of panicles per acre, and can increase the middle leaves, promote floret differentiation. Production of a large area of ​​lean, late wheat, weak seedlings, often resulting in small groups, the number of panicles, which is the main factor affecting yield, should be early application of green manure, promote spring hair. Usually apply ammonium phosphate 30 kg or 15 kg urea per acre. Fertilizers with sufficient fertilizer in the early stage and better-growing wheat fields do not apply green manure in principle.

The jointing fertilizer application of wheat to jointing fertilizer, both the role of promoting flower and keeping flowers, has significantly reduced the number of degenerate spikelets and degenerate florets, and is the key fertilizer to increase the number of grains per ear. This can also consolidate effective delivery, promote superior secondary root growth and sturdy stalks, extend the internodes below the ear, enhance and extend the functional period of the upper tri-leaf, apply 5 kg of urea per mu, and favor grain formation and grouting. The time for the top-dressing of the joint fertilizer depends on the seedlings' determination. Generally, the leaf color of the group fades, the peak of the tillering has passed, and the first part of the base is used for a fixed length; if the number of the group seedlings is insufficient, the leaf color before the jointing has fallen, Fertilization should be appropriately increased.

Flag leaf fertilizer application of flag leaf fertilizer is a new technique for high yield wheat cultivation. Appropriate application can improve the supply of nutrients during this period, expand the area of ​​flag leaf, extend the functional period of the upper three leaves, reduce the number of small flower degeneration, increase its seed setting rate, extend the duration of grain filling, and increase grain weight. The use of flag leaf fertilizer must be properly controlled according to the growing conditions of the seedlings. If it is lost or excessive, it can also cause adverse consequences such as lodging, greediness, late maturity, and production cuts.

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