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The ratio of nitrogen to phosphorus of Tianji brand nitrophosphate fertilizer is consistent with the fertilizer requirement of wheat, and it is most suitable for alkaline soil in the north. Nitrate nitrogen and ammonium nitrogen can be directly absorbed by wheat. The two forms of nitrogen provide good nutrition for the growth of wheat in different growth stages, and a reasonable ratio ensures the coordinated supply of wheat during the whole growth period. The trace elements and rare earth phosphate in the nitrophosphate fertilizer have a unique promoting effect on wheat growth. According to the target yield and the principle of fertilization of the former nitrogen shifting, 6 kg of nitrophosphate fertilizer for each 100 kg of wheat bottom is applied, and 4 kg of nitrophosphate fertilizer can be applied after jointing.
When the use of Tianji brand nitrophosphate fertilizer as the base fertilizer for wheat, the method of base application or the like can be used, and the method of applying and applying can be applied when topdressing is used. After the application, even if you do not cover the soil, it will not burn the seedlings, and it will achieve the purpose of fertilizing on the same day, and it will be effective on the same day, but it is necessary to pay attention to the irrigation of the wheat immediately after the application.
Henan Daily Rural Edition (Zhang Qiaolan)
Wheat fertilization technology
The wheat grown in our province is divided into two categories, one is weak spring variety and the other is winter half-winter variety. The weak spring varieties include Zhengmai 9023 and Yumai 18, and the winter and semi-winter varieties include Yumai 49, Yumai 69 and Yumai 70. The whole growth period of wheat includes nine periods of sowing, emergence, wintering, regreening, booting, heading, flowering, grouting and maturity. From emergence to jointing, the absorption of nitrogen accounts for more than 1/3 of the total amount, and the absorption of phosphorus and potassium accounts for about 1/3 of the total. The peak period of wheat absorption is from jointing to flowering.
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