Kiwi orchard soil fertilizer management technology

1 Fertilization:

(1) Fertilize young trees. Young trees are designated as the first to third year old trees after planting. After planting, the kiwifruit saplings are cultivated to have an ideal tree skeleton through reasonable fertilizer and water management. Because the roots of the saplings are shallow and tender, and there is not much fertilizer to absorb, the kiwifruit is a root of fleshy roots. When fertilizing, the concentration should be strictly controlled so as not to damage the roots. In acid soils, appropriate amount of lime powder can be applied, 30-50 kg per mu. The annual base fertilizer 1 and top dressing 4 to 6 times. Basal fertilizer was applied during winter expansion. Each plant was fermented with 2.5 kg of peanut bran, 30 kg of cattle, pig manure or earth miscellaneous fertilizer, and mixed with soil. Fertilizer to be applied to the thin application, can be used urea or compound fertilizer application or ditch application, fertilizer applied in the canopy drip line, can not be directly contact with the root system. Decomposed feces and urine can also be applied to the water. Top dressing begins in late February (from early April to late August in the new tree planting period), and is about 25 days apart.

(2) Result tree fertilization. Three years after the kiwifruit was colonized, it began to enter fruitful stage, and the tree shape was basically formed. The result became stable year by year and management basically stabilized. The fertilization time, amount of fertilizer and method of fertilization were determined according to the nutrients required for different growth periods of kiwifruit throughout the year. Usually about 4 times a year fertilization.

1Fall in autumn and winter (from September to December): Before and after picking fruit to defoliation, use soil miscellaneous fertilizer in combination with compound fertilizer for furrow application or expansion.

2 Germ Fertilizer (late February to early March): Application of compound fertilizer and urea before germination.

3 Xie Hua Fei (from mid-April to early May): Apply compound fertilizer and urea 1 time before and after Xiehua.

4 Strong Fruit Fertilizers (in mid-June): Apply 1 compound fertilizer based on phosphate fertilizers.

2 Moisture Management:

Kiwi requires large amounts of water, the roots are not resistant to stains, and their distribution is shallow. Pay attention to drainage in the rainy season, and timely irrigation in hot and dry seasons, especially in June-August.

3 Soil Management:

The root distribution of kiwifruit is shallow, and weeding and weeding should avoid damage to the root system. Young orchards combined with autumn and winter fertilization to deep-turn the soil, inter-row intercropping legumes such as soybeans, mung beans and so on.

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