Generally speaking, cultivate content of old nutrient of old canopy soil tall, the output that says vegetable normally should have more assure to just be opposite, but yield of vegetable of a few old canopy won't rise somewhat not only, and as fertilizer investment increases, yield is lower and lower however, grow what some canopy rooms connect vegetable normally even unwarrantable also. Accordingly, to old canopy, want to keep vegetable yield, should restore edaphic kilter above all, because this cannot undertake according to original convention,fertilized.
Old canopy soil exists more what problem
Old canopy helps advance somebody's career the question of vegetable existence is very much, but because edaphic reason is caused,great majority is. Soil of old canopy room exists commonly the following 3 main problems.
Content of qualitative nutrient of mine of 1. old canopy is high, organic qualitative opposite less
Canopy room is cultivated old later, be in especially " heavy chemical fertilizer is light organic fertilizer " room of canopy of ideal sow establish, much meeting occurrence mine pledges nutrient surpasses the case with mark, organic qualitative insufficient content. The granule structure among soil does not exist from beginning to end, form ceaselessly however also be being used up ceaselessly. If use chemical fertilizer for a long time in great quantities and the use that ignored organic fertilizer, granule texture is less and less, soil hardens with salt be soiled is changed more easily, continue to throw chemical fertilizer to be able to make edaphic environment more harsh again.
The nutrient with extremely low 2. draws utilization rate
Old canopy pledges toward mine nutrient exceeds bid is not formed inside short time, because many mine pledges the element is accumulated in soil,secure however, the absorption that the nutrient that these cannot absorb affects other element then again (fight with Jie advocate) , make exist in name only of the action that offer fertilizer.
3. soil biology and microbial less and less
As soil organic reduce character, the biology that organic material relies on to live in soil and beneficial microbial decrease because of lacking food, beneficial biologic decreases can make soil more harden, and the inhibition that decreases microbially to be able to reduce pair of harmful bacterium benignantly ability and to nutrient change ability, then old canopy appears more earth spread disease.
How to improve old canopy soil?
Soil is style of an organic life, although be destroyed easily, but pass purposeful adjustment, still can restore health.
1. base fertilizer should be given priority to with pure organic fertilizer.
When old canopy is choosing organic fertilizer, do not want reuse to contain salt to measure tall organic fertilizer, for instance gallinaceous dung, duck dung, pig dung, use the organic fertilizer with little content of mine qualitative element however. In birds cultivate manure, ovine dung, cow dung is opposite for organic qualitative taller, the quantity that contain salt is fewer, suit to regard old canopy as base fertilizer.
2. top application should be used absorb the water dissolve fertilizer with high utilization rate.
Although say content of the nutrient in old canopy soil is high, arrived vegetable when the later period in growing is great to nutrient uptake, if fill not in time,fertilizer still can affect vegetable crop. Because this choice absorbs efficiency,the water dissolve fertilizer with tall, little remain is top application of the later period in vegetable choose fertilizer surely. Top application of old canopy room suggests to adopt the mark target sex such as small spurt, drip irrigation to irrigate by force means. In dose same situation falls, the absorption of new-style water-solubility fertilizer utilization rate is higher, remain is fewer, titanium thinks fertilizer of your water dissolve to wait, still hold improvement concurrently edaphic environment, exciting plant is haggard wait for multiple effect.
3. increases the amount that use bacterium stage by stage.
Beneficial bacterium is very important in production of old canopy vegetable, pass the complement of beneficial bacterium on one hand, restrain the earth that spreads stage by stage to spread disease, in raising the quantity that use bacterium to promote soil on the other hand organic reach nutrient be pledginged by fixed mine character decompose change, reduce the remain of qualitative nutrient of the mine in soil. At the same time beneficial bacterium still can be protected and promote root system to grow mediumly in abominable soil environment. Old canopy uses beneficial bacterium expensive holding to, the effect cannot see probably inside short time, and insist to use one year above, the favorable result of beneficial bacterium will be progressively apparent.
Origin easy peaceful agriculture
