2. Fruit sub-benths such as wolfberry, burdock, fenugreek, barley, etc., leaf top dressing with nitrogen, phosphorus, potassium or multiple compound fertilizer based. Use 1 percent urea plus 2 percent superphosphate leaching solution plus 1 percent potassium sulfate solution, or use 0.2% to 0.3 percent potassium dihydrogen phosphate to spray. It is generally better to spray once or twice in the late growth stage. 3. Whole plants and flowers such as buckwheat, andrographis paniculata, honeysuckle, safflower, etc., the commonly used concentration of foliar dressing is 1 to 2 percent of urea, and the spraying amount per mu is 50 to 60 kg. Spray 1 to 3 times. Pay attention to the matters of top dressing of Chinese herbal medicines 1. The application time should be suitable for foliar dressing in general in the sunny morning, rain can not be sprayed. Rain falls within 3 hours after spraying, and should be sprayed after sunny days, but the concentration should be reduced appropriately. 2. When the concentration of fertilizer is too high, if the concentration of fertilizer is too large, it will not only increase the cost, but also cause damage to the fertilizer. Especially when applying trace fertilizers, special attention should be paid. 3. Fertilizer Appropriate application of phosphorus-containing fertilizers such as superphosphate, etc., should be taken after soaking for 24 hours. Lactic Acid,Biodegradable Lactic Acid,Lactic Acid Liquid,Poly Lactic Acid SHANDONG BAISHENG BIOTECHNOLOGY COM , https://www.baishengbioproducts.com
Chinese herbal leaf dressing technology
1. Rhizomes and roots such as Salvia miltiorrhiza, Astragalus membranaceus, Chinese yam, Reh Can be 0.4% potassium dihydrogen phosphate or 2% superphosphate leaching solution, 4% ash leaching liquid spray on the water. Spraying time is generally in the late growth period.