40results about How to "Lower fertilizer costs" patented technology

The invention discloses a special compound fertilizer for tobacco and an application method thereof. The compound fertilizer comprises 2-10% urea, 5-20% ammonium phosphate fertilizer, 5-15% potassium nitrate and 10-30% potassium sulfate. , 0~15% lignosulfonate, 0~20% coal, 5~20% attapulgite, 0~2% borax, mixed and stirred, crushed, granulated, dried, cooled, sieved, and made into granules The compound fertilizer is mixed with 0-5% granular lime nitrogen and mixed evenly to obtain the finished tobacco-specific compound fertilizer, which is applied with other fertilizers 5-15 days before the tobacco seedlings are transplanted. The tobacco-specific compound fertilizer formula of the present invention has strong practicability for the southern smoking areas, can overcome serious problems such as soil acidification caused by traditional fertilization formulas, and at the same time add a certain amount of medium and trace elements and synergists to the formula , so that it can meet the requirements of mineral nutrition during the development of tobacco plants, improve the utilization rate of nutrients, reduce the frequency of fertilization, and significantly improve the yield of tobacco plants and the quality of tobacco leaves.

A microbial wettable powder fertilizer, fertilizer technology field, the wettable powder fertilizer per 1 kg contains 500-800 billion spores of Bacillus licheniformis, 200-400 billion spores of Bacillus subtilis, 210-290 g of white carbon black, and 80 g of light calcium ~120g, anti-caking agent 25~35g, kaolin 230~310g, boron 40~60g, ferrous sulfate 25~35g, zinc sulfate 100~140g, manganese sulfate 25~35g, sodium molybdate 8~12g, the rest is necessary Carrier. This product is wettable powder, easy to use, high fertilizer efficiency, can be sprayed, drenched or root irrigation, can directly reach the seedling roots, the effect is more direct, so it can reduce the amount of fertilizer and save the cost of fertilizer.

A soda saline-alkali soil paddy rice prime field fertilization method. The invention relates to a saline-alkali soil paddy rice prime field fertilization method and aims to solve the problems that in production of paddy rice in the soda saline-alkali soil in the prior art, application of chemical fertilizers is unreasonable, which may cause waste and loss of fertilizers and influence on yield of rice, and further may have potential environment pollution risk. The method herein includes the steps of: 1) determining the fertilization quantity of the saline-alkali soil paddy rice prime field, wherein a nitrogen fertilizer is applied in three times of base fertilizer, tillering fertilizer and ear granule fertilizer, a phosphorus fertilizer is applied as a base fertilizer in one time, and a potassium fertilizer is applied in two times of base fertilizer and ear granule fertilizer; 2) determining that the base fertilizer is a sulfur-based N-P-K ternary compound fertilizer or is a mixture by compounding elementary fertilizers, the tillering fertilizer is ammonium sulfate or urea, and the ear granule fertilizer is a nitrogen-potassium binary compound fertilizer or is a mixture of urea and potassium sulfate; and 3) determining the fertilization period of the saline-alkali soil paddy rice prime field. The method fully considers the nutrients in the saline-alkali soil, reduces loss of the base fertilizer and increases the utilization rate of the base fertilizer and the yield of the paddy rice. The method is applied in the field of paddy rice planting.