Drilling holes or grooves, radiating gutter and ring grooves in the drip line of canopy .Mixing organic fertilizer and super absorbent polymer in the root area. Each fruit tree can be used for 100g ~ 200g with a larger grain size (5-20 mesh)of SAP, which can increase the supply of water and fertilizer during the five years of fruit production, thus can save irrigation water and producing high yield and improving the quality of fruit. The experiment proved that the length and roughness of the autumn tip of the fruit trees, such as lychee, longan, mangoes, banana and loquat were increased by 100g ~ 200g. Loquat produces 29%. The growth rate of the plant and the seedling rate reached 100%, the plant height increased by 27%, the stalk was up by 22%, and the yield increased by 18%. apple, pear, peach, date and other plants are need 200g, and the grape plant is 50g. it can save 60m3 of irrigation water per 667 m2 per year, increasing the yield by 20% ~ 25%, and the fruit sugar content increases. What's more important is that these good effects last three to five years.
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mechanical drilling can improve the ecological condition and tree nutrition of the rhizosphere. With the trend of water tree roots became fat and callus proliferation characteristics, promote the cavity around the root system growth, enforming water supply and transportation center with large root hair density, it can play long-term of water retention agent and the effect of organic fertilizer.
Compared with the traditional method of fruit tree fertilization, the drilling method has the following advantages:
1.Save time and work efficiently. 3 ~ 4 times more effective than ordinary artificial excavation, reducing labor intensity;
2.There is less damage to the roots of trees. The hole drilling worm is exempted from the effect of cutting off the main root to the tree body;
3．The using efficiency of water and fertilizer is high. The super absorbent polymer and organic fertilizer are used in the hole to match the moisture absorption characteristics of the trees.
4.Enhance the ability of preventing drought. The water storage capacity of the rhizosphere can be increased with the growth of the tree and the addition of water retention agent every two to three years.
Methods for drilling and applying water and fertilizer:
1.According to the canopy size, Confirm the consumption、he number of boreholes and the distribution of position of super absorbent polymer and organic fertilizer for single plant, t;
2.Drilling hole depth is about 30 ~ 40cm, change drill point nearby if meet coarse root or rock,, Avoiding the damage for root system and drill bit.
3.Mixing super absorbent polymer and organic fertilizer evenly,and backfill to the hole below 10cm from the ground.
4.To fill the holes with the bark and gravel, and make a tree dish to ensure the irrigating water or water can fill in the hole smoothly.