Field management of pollution-free mango
(I) soil management:
Combined with the application of base fertilizer, a ditch was dug under the dripping line on both sides of the crown, the size of the conventional ditch was 100 cm × 50 cm × 40 cm, and pressed with green manure, mature organic fertilizer and phosphate fertilizer.
It is suggested that dwarf legume green manure, forage grass, other nectar plants or interrow grass should be planted in mango orchard, but the intercrop should be more than 1 meter away from the base of mango tree, and the selection of grass species should be short-stalked or creeping, without common diseases and insect pests with mango, and the growth period is short, such as thistle. It is recommended that mango root circle or planting belt should be covered with annual mulch.
(2) weeding:
Artificial, mechanical or microbial herbicides are used to control root zone weeds. Mechanical, electrical, microbial herbicides or chemical herbicides recommended in this standard are recommended for interrow weeds control.
(3) Water management:
In the period of mango autumn shoot emergence, flower bud morphological differentiation and fruit development, the soil should be irrigated in time in case of drought. It is recommended to irrigate every 15 to 20 days.
(4) fertilization:
The types of fertilizers recommended are as follows, nitrate nitrogen fertilizer should not be used.
The recommended fertilizers for pollution-free food mango production are as follows.
Commercial fertilizers:
Inorganic fertilizer (nitrogen fertilizer): urea, aluminum chloride.
Inorganic fertilizer (phosphate fertilizer): calcium superphosphate, calcium magnesium phosphate fertilizer, phosphate rock powder.
Inorganic fertilizer (potash fertilizer): potassium chloride, potassium sulfate.
Inorganic fertilizer (calcium fertilizer): quicklime, limestone, dolomite powder.
Inorganic fertilizer (magnesium fertilizer): calcium magnesium phosphate fertilizer.
Inorganic fertilizer (compound fertilizer): binary and ternary compound fertilizer.
Foliar fertilizer (growth assistance): Qingfeng, Yuncaisu, Wandefu, Lvfengbao, Aiduo harvest, Dam bumper harvest, Shield, Yunda, 2116, Opal, Gao Meishi, Huimanfeng and so on.
Foliar fertilizer (trace elements): fertilizer containing trace elements such as copper, iron, manganese, zinc, boron, molybdenum and potassium dihydrogen phosphate, urea, potassium chloride, etc.
Other fertilizers:
Sea fertilizer: fish dregs, shrimp dregs, shellfish scale without preservatives.
Animal fertilizer: preservative-free cattle and sheep hair waste, bone meal, livestock processing waste, etc.
Foliar fertilizer can be applied 2-3 times in autumn shoot turning green stage, flower bud stage and young fruit development stage, with an interval of 7-10 days. The types of foliar fertilizer are as described above.
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Control of anthracnose of mango
The main results are as follows: 1. the main damage symptoms are mango flowers, fruits and tender shoots. After the young leaves were infected, there were many round brown spots with yellow halo around them, and gradually expanded into round, polygonal or irregular brown spots, then ruptured and perforated, and the leaves and young fruits were covered by gall midges, leafhoppers, etc.
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Grafting Seedling cultivation techniques of planting Mango
1. Scion selection: the scion is collected from the improved variety mother garden or adult mother tree. The mother plant requires pure variety, high yield, stable yield, high quality and no quarantine diseases and insect pests. All nurseries with suitable conditions should have ear picking nurseries, which are specially used for ear picking and ear grafting. Select the branches as the periphery of the crown
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