Kiwi fruit enlargement and fertilizer management

According to the results of the kiwifruit fertilizer effect test, from May to July, the absorbed nitrogen of kiwifruit accounted for 53.1% of the annual nitrogen requirement; the phosphorus absorbed accounted for 55.4% of the annual phosphorus demand; the absorbed potassium accounted for the annual potassium requirement. 52.8%. This period is the peak period for kiwi fruit to absorb nitrogen, phosphorus, and potassium, and it is also the maximum period for kiwifruit to need nitrogen, phosphorus, and potassium nutrition.

Inflation and fertilizer management

Rhizoma macaques should be fertilized in small amounts several times during fruit enlargement. In principle, high concentration chemical fertilizers should be avoided and ammonium fertilizers should be disabled. In early June, the enlarged fertilizer plant applied 1 kg of three-element compound fertilizer, combined with 0.5 kg of trace element fertilizer, and at the end of July, the excellent fruit fertilizer plant applied 0.5 kg of potash fertilizer. The amount of fertilizer applied in the orchard was reduced. The fertilization location is 80 to 100 cm from the trunk and the fertilization depth is 15 to 20 cm. Fill with water after each fertilization. After bagging, spray 1:1 times of biogas slurry or amino acid nutrient leaf fertilizer 500 times every 10 days for a total of 3 injections. In case of high temperature and drought, water should be poured before 11am or after 4pm.

Fertilization method: When fertilizing, the hole is usually applied at a distance of 1 meter from the trunk, and the hole is about 30 centimeters in diameter and 25 to 30 centimeters deep. The fertilizer is applied to the pit.

Irrigation, generally combined with fertilization for irrigation, mainly captures the characteristics of several water requirements during the growing season. Kiwifruit requires high soil moisture content after flowering before flowering. According to the soil moisture content, each kiwi should be fed with small water. However, irrigation should be controlled during the flowering period to avoid lowering the ground temperature and affecting flower opening. Kiwifruit fruiting from June to July is the fruit rapid expansion period, this period is the peak period of water requirement for kiwifruit, should determine the number of watering according to the soil moisture, good sensation, waterlogging in time can be less or no watering, otherwise, the soil Severe compaction, shallow sandy soil, poor water retention, should be more watering, generally pouring 3 to 4 times. While strengthening summer irrigation, drainage should be done during the rainy season. In particular, sandy land with a shallow groundwater level should be exposed to continuous rain or heavy rain. The water in the field should be eliminated in time to prevent damage, excavation of drainage ditches or high ridges. Cultivation.

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