The broad bean seedlings should have enough P and K fertilizers to supply roots, only more rhizobial bacteria and strong resistance to disease. It will not cause rot-root dead seedlings, robust plant growth, thick stems, not easy lodging, flower bud differentiation, With many flower buds, large flowers, pollen feet, strong vitality, good pollination and fertilization, high scab rate, full of pods. Therefore, the broad bean seedlings should pay attention to increase phosphorus and potassium fertilizers to ensure the supply of phosphorus and potassium fertilizers. Specific fertilization methods are as follows: In the range of 3 to 4 leaves and 7 to 8 leaves of a broad bean, roots are each given a phosphorus and potassium fertilizer, and each application of superphosphate or calcium magnesium phosphate fertilizer 80 to 100 kilograms, potassium sulfate 25 to 30 kilograms per acre, the phosphorus and potassium fertilizer Mix thoroughly and spread on the soil around the roots of broad bean plants, and then apply a layer of soil about 5 to 6 cm thick. Phosphorus and potassium fertilizers are covered, or fertilized, and a “running horse water†is planted in the whole field. Rapid speed irrigation is performed to prevent accumulation of water, so as to promote the dissolution and transformation of fertilizers and improve the effect of fertilization. In addition, the 0.25% to 0.3% potassium dihydrogen phosphate, 600-fold amino acid potassium mixture, or 25 to 30 times superphosphate should be sprayed once every 7 to 10 days, and the clarified solution should be mixed with dry and pure ash, or 800. ～1000 times Star Phosphorus Potassium No.1 and 1000 times Potassium Nucleotide Mixture, spray 3~5 times continuously. Evenly spray all the leaves to start dropping drops of water. It is advisable to supplement the phosphorus and potassium fertilizers from the leaves and increase the phosphorus and potassium levels of the plants. Moisturizing Raw Materials,Aloe Vera Extract,Centella Asiatica Extract,Liposomal Rice Bran Extract Shaanxi Changsheng Industrial Co., Ltd. , https://www.cncsbio.com
Phosphorus and Potassium Fertilizers should be Added in Broad Bean Seedling