base fertilizer. Green leafy vegetables need a large amount of fertilizer, Shizu base fertilizer is the key, generally Mushi fermented organic fertilizer 3-5 tons, 100 kg compound fertilizer, borax 0.5-1.0 kg, once applied to the soil as a base fertilizer. Deeply pour 20-25 cm to fully mix the soil and fertilizer. top dressing. Green leafy vegetables 10-15 days after planting 10-20 kg of urea per acre, to the growth of the leaves of the growth period, the growth of lush, is the maximum efficiency of nutrients, the need to supply more fertilizer water, chase urea and potassium sulfate per mu 10-15 kilogram. No nitrogen topdressing is applied 15-20 days before harvesting. During the leaf's growth period, foliar spray with 0.5% calcium nitrate or calcium chloride sprayed 2-3 times. Vegetables and fruits Vegetables and vegetables Vegetables mainly refer to tomatoes, eggplants, peppers, etc. in Solanaceae. This type of vegetable is native to the tropics and is characterized by a long period of time, high yield, warmth, lack of resistance to frost, hi-glare light, and a more developed root system, all with fruit for human consumption. The fruits and vegetables are mostly of unlimited growth type, ie, budding, flowering and bordering. Therefore, we must pay attention to adjusting the contradiction between vegetative growth and reproductive growth in order to obtain a good harvest. L-Tryptophan,L Tryptophan Powder,L Tryptophan 73-22-3,Feed Grade L Tryptophan CHANGZHOU GUANGHUI FOOD INGREDIENTS CO.,LTD , https://www.gsweetfood.com