The plant was topdressed once every 10 days after planting to promote plant growth(bulk 14 gallon pots). Uniformly applied urea 225kg / hm2, or manure and livestock manure 22.5t / hm2, or ammonium bicarbonate 450kg / hm2. Pay attention to shallow water and frequent irrigation during the period to prevent drought(plug trays for sale). The bulbs started to form and new leaves were still growing in mid-to-August.
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Topdressing once again at the beginning of July, applying grass ash 1200kg / hm2 or phosphate fertilizer 1500kg / hm2 to promote bulb expansion(32 cell propagation trays wholesale). After entering the rainy season, it is advisable to leave the field to the ground, but make sure that the soil is not dry(plant starter trays). In mid-September, part of the stolons were removed in time and the water level in the field was reduced to 4 ~ 6cm to promote the formation and growth of the bulbs.
(sureroots deep cell plug trays manufacturers uk)The pests that affect the normal growth of Cigu are mainly aphids, Cigu heartworms, and tapeworms(50 cell propagation trays wholesale). Can retain 5-8 green leaves, enhance field permeability, improve photosynthesis efficiency, and reduce plant nutrient consumption. At this time, the plant needs a large amount of fertilizer(72 cell propagation tray), which can be applied to human dung 45t / hm2 or urea 600kg / hm2, and ash 1800kg / hm2. 7 ~ 12cm.
The main disease affecting the normal growth of Cigu is Cigu powdery mildew(98 cell propagation trays wholesale). The disease mainly harms the leaves and petioles of plants. The chlorotic spots appeared on the infected leaves in the early stage, and gradually developed into yellow and green bulging spots of varying sizes(3.54inch plastic nursery pots). The posterior blister spots were yellow and ruptured, exuding a large number of black particles, and even causing leaf perforations.
The development of rickets and spore temperature are 27 ~ 30 ℃, and the condition will rise sharply when the continuous rainfall is more than 2d(105 cell propagation trays wholesale). It can be controlled by spraying 1000% solution of 40% dimethoate EC, 3000 times solution of 10% avermectin EC, or 1000 times solution of Bt powder(grower pot). After hatching the larvae, they drilled into the petioles to eat and cause the leaves to break and wither.(sureroots deep cell plug trays manufacturers uk)
Use 15% triazolone wettable powder 1000 times liquid, 75% chlorothalonil wettable powder 700 times liquid(128 cell propagation trays wholesale), 25% carbendazim wettable powder 600 times liquid, 25% powder rusting wettable powder 800 times liquid, more than 40% Sulfur suspending agent 500 times liquid, 1: 1.5 times Bordeaux liquid and other pharmaceutical spray control(4.33inch plastic nursery pots), spray once every 8d, spray a total of 2 or 3 times
(sureroots deep cell plug trays manufacturers uk)The maggot aphid mainly sucks the juice in the young part of the plant(162 cell propagation trays wholesale), causing the young leaves to curl, and at the same time secreting honeydew, which seriously affects the growth of the plant. Aphids grow fastest at 25 ° C and 80% humidity. They can reproduce for 30 generations in one year(black nursery pots). Drought and arid climates are most likely to occur. Adults of C. citris lay their eggs on the leaves and petioles.
The germination temperature is 10 ~ 38 ℃, and the optimal temperature is 26 ~ 32 ℃(200 cell propagation trays wholesale). They can be sprayed and controlled with 40% dimethoate EC 1000 times in the early stages of larval hatching. Ascaris can be controlled by spraying with 25% insecticidal solution 600-800 times in mid-August, 5% Ruijin special suspension emulsion 1500 times, causing the bacteria to infect the leaves(4.72inch plastic nursery pots), or 0.5% metavinium salt 1500 times.