What will happen to kiwifruit due to nitrogen deficiency?
What will happen to kiwifruit due to nitrogen deficiency? Please introduce the nitrogen content of healthy new leaves of kiwifruit 2.2% Mel 2.8%. When the nitrogen content drops to 1.5%, there will be symptoms of nitrogen deficiency. The symptoms were first expressed in the old leaves, and then extended to the upper young leaves. The color of the leaves changed from dark green to light green, or even completely yellow, but the veins remained green. The apical edge of the old leaf was scorched and expanded to the base along the leaf vein, and the necrotic tissue curled slightly upward, sometimes accompanied by the phenomenon of smaller fruit. Control measures: apply sufficient base fertilizer at the time of planting and every autumn and winter. Nitrogen fertilizer can be applied twice from the end of May to July, and 0.3% Mel 0.5% urea solution can also be sprayed on the leaves in the middle of growth for 2-3 times, each time at an interval of 7 days. In addition, planting green manure is also a good way to supplement nitrogen. Click to get more kiwifruit planting techniques click to get more fruit planting techniques
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How to fertilize kiwifruit scientifically?
How to fertilize kiwifruit scientifically? Please introduce that kiwifruit grows fast, bears early fruit and consumes a lot of nutrients. Reasonable fertilization is needed every year to meet the requirements. (1) fertilization time: kiwifruit is generally fertilized once a year, topdressing 2-3 times. Base fertilizer: generally applied after harvest before defoliation. The time is 10: 12.
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How can kiwifruit be planted with high yield?
How can kiwifruit be planted with high yield? Please guide kiwifruit to have high yield with reference to the following planting techniques: first, varieties should be selected with large fruit shape, good quality, strong disease resistance and good yield, such as Hayward, Allison, Bruno and so on. Second, choose to build the garden kiwifruit like a cool and humid environment, afraid.
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