Chili fallen petal not flushing, what reason be
1, fertilization is not reasonable
Mostly due to the use of fertilizer nitrogen content is higher, leading to excessive nitrogen, phosphorus, potassium element is relatively low, coupled with very little mobility, phosphorus in soil, the phosphorus potassium element is relatively insufficient, soil trace element has not been timely supplement after consumption, moderate growth, lead to excessive plants and floral organ development caused by abnormal fallen petal.
2, water is too large and too often
Some farmers mistakenly believe that as long as more water fertilizer plant will grow quickly, we will be able to increase production, therefore, increase water quantity and the number of water, soil water is serious, uncoordinated root required water, nutrient supply priority the growth of the vegetative organs such as the stem leaf, weak reproductive growth, flower bud differentiation out of bad.Therefore, according to the soil moisture water, must not flood irrigation.Water depends on the day, see, see vegetables growing.The watering should choose sunny morning, don't choose before cold and cloudy water, it's too late to apologize.See the humidity of the soil, as long as the soil moisture in water, temporary not more than 70%.Best conditions for growing vegetables, looks, temporary not watering, before, during, and after a large number of flowering for flowers die after secure young fruit after watering, watering after ventilation in time, reduce the relative humidity, preventing disease occurs.
3, night temperature is high, small temperature difference between day and night
Chili thermophilic, but not resistant to low temperature and high temperature resistant.Blossom period, the growth of the appropriate temperature of 20 ~ 27 ℃ during the day and night temperature is 13 ~ 18 ℃.If the temperature is too high or too low will cause abnormal or floral organ development difficult to pollination fertilization.Daytime temperature above 35 ℃, flower implement hypoplasia or stigma dry, does not cause the fallen petal; pollination fertilizationNight temperature is too high will lead to excessive vegetative growth, reproductive growth inhibition.
4, insufficient light
Shadow of plant closed or peel films or use the old film, when faced with changes in temperature air current alternately, cloudy day, inadequate illumination, windy dusty, plus some careless farmers night jie back cover, make the relative deficiency results in the decrease of photosynthetic efficiency, less product accumulates the fallen petal.
5, hormone poisoning,
When temperatures rise, dotted the concentration of growth regulator used should be appropriate to reduce, should no longer be in accordance with the concentration of the low temperature when use, can appear otherwise hormone poisoning make floral organ can't develop normally and pollination and cause the fallen petal.
6, disease, adr, fertilizer pollution
Relative humidity is bigger, will create favorable conditions for mould and many other diseases, cause the fallen petal fruit drop;Ambassador to mix pesticide or solution concentration plant in the adr, can also cause the fallen petal one-off fertilization concentration is too large, the soil solution increases, osmotic pressure increased, the root injury, weak plants can also cause the fallen petal.
Chili fallen petal not fruit
1, timely fertilization
According to the hot pepper growing reasonable formula fertilization, according to the formula to choose reasonable fertilizer, balance all sorts of nutrition supply, vegetative growth and reproductive growth of balance.Excessive growth of stem leaf vegetables, can decrease the amount of fertilizer, especially to control the nitrogen fertilizer.Chili peppers hanging fruit before, as long as it's not a serious lack of fertilizer, try to give little or no fertilizer.
2, a moderate amount of ventilation, pervious to light
Greenhouse should be early late cover hulls, in a timely manner according to the requirements of hot pepper to temperature ventilated.In addition, farmers grow eggplant, tomatoes, beans, etc should also be timely ventilation pervious to light, such as eggplants, tomatoes and other vegetables to the temperature at 30 ℃ above ventilated, maintain relative temperature at 25 ~ 30 ℃ during the day, in 15 ~ 16 ℃ at night.Legumes ventilation in 28 ℃, and keep the canopy temperature during the day in 22 ~ 25 ℃, in 12 ~ 14 ℃ at night.On the premise of guarantee the canopy temperature, early jie late careless cover, as far as possible to extend the time of pervious to light, it's cloudy also should as far as possible away hulls, often cleaned, and published films, ensure good penetrability, improve the efficiency of photosynthesis.
3, auxin regulation
Can be sprayed with 15 to 25 mg/kg of naphthalene acetic acid mixed with 750 times to CCC and can control mong long already, promote flower bud differentiation, but also prompted vegetative growth to reproductive growth, prevent the fallen petal fruit drop.But can't ignore temperature should be paid attention to, if not on the premise of reasonable control temperature and fallen petal fruit drop will continue to happen.
In addition, the prevention and control of mould, anthracnose disease should be strengthened.
