For a long time, fruit growers who grow kiwifruit tend to focus on fertilization, pruning, and pest control. However, in the kiwifruit garden irrigation, only the leaves are wilted and watered. After a long time, the garden looks like the topsoil is dry yellow, and the soil distributed in the roots is in a damp state for a long time, which is likely to cause a lot of rotten roots.
Different soil properties, different water requirements Generally speaking, when the water holding capacity of sand to clay is 25%-35%, the soil is dry by hand; when the maximum water holding capacity in the field is 60%-80%, hand control The moisture content in the soil is most suitable when it is wet and can be dispersed. Planting kiwifruit on sticky soil, hand-controlled soil into agglomerates, there are cracks when the soil is squeezed by hand, indicating that the soil water holding capacity is about 50%, and the leaves are not only wilting under noon, but still wilting after glare. Water shortage has been required and the irrigation scheme must be started.
The amount of water should be controlled to control the maximum water holding capacity of kiwifruit in the field of germination at 80%. It is moderate and slightly insufficient. It is also the usual sensation of sensation, which is beneficial to germination, and the new shoots are long and the leaves are large. The maximum water holding capacity in the field is 70%, which is favorable for flowering fruit. The soil is usually not dry or wet, and water control is beneficial to flowering fruit. During the fruit expansion period, the maximum water holding capacity in the field is 80%, which is beneficial to the rapid expansion of the fruit. At this time, it is also the largest period of evaporation, but it can not accumulate water for a long time. The water accumulation not only causes the new shoots to grow, but also affects the roots to breathe and causes rotten roots. During the fruit ripening period, the maximum water holding capacity in the field is 70%-80%, which is moderate, and it is beneficial to the sugar accumulation and full maturity of the fruit, and the fruit color is normal. During the dormant period, the maximum water holding capacity in the field is maintained at 80%, which is beneficial for wintering and frost resistance. Why is it necessary to promote the sealing of frozen water? This is the reason.
There are ways to water the flooding for local irrigation, such as irrigating, furrow irrigation, hole irrigation, tree tray irrigation, water economy, water infiltration from the sputum, ditch, bottom and side of the hole, without destroying the soil agglomeration, root range Breathing is not affected, and the soil is evenly moist, does not accumulate water, and does not rot due to stagnant water. For ridge planting, water can be poured into the middle of the ridge, deep into the distribution of roots, so that the roots are in a stable environment with long-term humidity and good ventilation, which is beneficial to growth, does not damage young roots, and will not be bad due to water accumulation. root.
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