The near future, receive honey peach of southern each district to cultivate ceaselessly door phone and small letter, those who say the craze of nucleus of honey peach peach that is them is very serious, occupy about in the peach of be born 50% the left and right sides.
Look at this to fall off everywhere and the peach of craze, peach farming people be about to cry without the tear. What reason causes this after all? How should prevent and cure again?
Generally speaking, the reason of peach nucleus craze has the following 5 kinds:
1, breed character causes flesh of the peach that crack a nucleus to pledge crisp breed pledges than the flesh compact breed cracks a nucleus easily; Slant circular breed cracks a nucleus more easily than growing circular variety; Early, medium ripe breed cracks a nucleus more easily than late, late ripe breed.
2, ambient conditions is caused crack a nucleus to be in peach is hard nuclear period around (namely peach nucleus grows during development) encounter rainwater overmuch, crack a nucleus easily; Edaphic underground water level is exorbitant, catchment is undesirable also can cause crack a nucleus.
3, breed misgovern to cause crack a nucleus. Slant apply nitrogenous fertilizer, phosphate fertilizer is insufficient, cause peach excessive growth, ignored summer crop, cause easily crack a nucleus.
4, be short of calcium to cause crack a nucleus if really.
5, other plant diseases and insect pests causes the premature senility that establish system and peach to stop development.
Through detailed knowledge, fruit grower people peach garden was reached last year appear rarely before this kind of phenomenon, the possibility that because this decides,is the first kind of reason is not large.
Since April rainwater of Jiangsu and other places slants much, and air temperature ignore tall ignore extremely low abnormal. And be in plum rains season now, peach garden precipitation is more abundant, volume of edaphic full water is higher, accord with the 2nd kind of circumstance.
Enter Peng since fruit period, fruit grower people for as soon as possible Peng fruit, high frequency rate and excessive is chased after apply tall Potassium compound fertilizer or Shui Rong are fat. A little inferior fertilizer for short-term inside reveal the effect and excessive adds nitrogenous fertilizer, other side potash fertilizer is absorbed also can restrain peach to be opposite too much absorb calcicly, cause peach thereby excessive growth and be short of calcium. This is accorded with the 3rd, 4 kinds of circumstances.
From me the survey with on-the-spot early days reachs near future peach farming people the picture that sends will analyse, still existing a series of different level land such as perforative disease, branch withered disease, ulcer disease and brown corrupt disease disease. These disease direct or what affected peach secondhand is hale grow and of peach grow development. Accord with the 5th kind of circumstance.
In peach fruit in whole development process, an important period is called hard nucleus period. Hard nucleus period development characteristic is, pulp development intermit is logy perhaps, nutrient supplies peach nucleus centrally.
On management, hard nucleus period accuse fertilizer to accuse water as far as possible, if water the amount is too large or amount of nitrogenous fertilizer employ is large, with respect to the excessive growth that can cause peach, threw into confusion gains growth this rule, nutrient of pulp development contention is more, so peach nucleus can is not worth because of nutrient and sclerosis spends difference. Hard nucleus period hind, fructification enters rapid expand the 2nd times period, what pulp expand arises is tensile, the peach nucleus that can make hardness poor splits. After peach nucleus splits, peach kernel lost protection, death of meeting shift to an ealier time is mildewy even.
We know, more gibberellin is contained in peach kernel, it can allocate nutrient, stimulative seed bud and peach gains growth, make sure peach fruit health grows normally. And once peach kernel in advance dies, peach fruit is met necessarily " early " hair is soft.
Tell the truth, seeing these pictures is not flavor very in the heart. But ground of be practical and realistic will tell, once peach appeared the immortal after phenomenon of peach nucleus craze also unable to save a deperate situation, can treat without any medicaments! Precaution! Can prevent only! !
How should prevent so one by one?
One, establishment of garden of sound program peach, appropriate chooses to be in the plot with high relief, add dig barrel-drain, prevent peach garden seeper.
2, add apply organic fertilizer, biology fertilizer, add the organic qualitative content of peach garden soil, have the objective of Zhuang Shuzhuang root.
3, reasonable accuse to apply nitrogenous fertilizer, add the potash fertilizer that apply phosphor, prevent peach garden soil too acerbity or too alkaline, reduce edaphic salinity; In florescence and Peng fruit initial stage gush applies boracic calcic fertilizer.
4, peach is in hard nucleus period should right amount accuse water, prevent fructification hair is soft.
5, strengthen peach summer crop, balance tree situation, prevent excessive growth, raise peach ventilated and pervious to light function.
6, strengthen disease of peach ill branch to clear if really He Qingyuan works, spend a beautiful lime sulfur to disinfect with 4-5. Disease of ulcer of seasonable prevention and cure, perforative disease, brown corrupt disease with other insect pest.
Above not the place of week asks everybody to leave a message discuss, welcome transmit!
