34results about How to "Low ecological impact" patented technology

The invention discloses a root-controlling cultivation method imitating wild directional holes under a golden fruit olive forest, comprising the following steps: 1) forest land selection: select an altitude of 800-1200 meters, a slope of 30-60 degrees, and a shading degree of 30%- 70%, the depth of the soil layer is more than 50 cm, and the temperature and humidity are suitable for the growth environment of the wild golden fruit. The artificial forest land or mountainous area facing north and east; 2) Mechanical drilling: avoid rocks and tree roots. Use a mechanical drilling machine to drill horizontally the planting holes on the slope surface. The diameter of the planting holes is controlled at 30-35 cm, the depth is 40-50 cm, and 1500-2000 holes are drilled per mu; 3) In March-June of the lunar calendar, the Fill in the guide holes with a good cultivation substrate of Lavenderia quinquefolium, plant 2-3 robust seedlings of Lavender quinces at a distance of 10 cm from the hole, fill them with the substrate and pat them down, pour enough water for rooting, and cover the surface with weeds or dead plants. The leaves keep moisture and can be harvested in 3-5 years; the technology provided by the invention is simple in operation, low in investment, does not require manual shading facilities and irrigation, and has high yield and convenient manual digging, which can significantly improve the economic benefits of growers.

The invention discloses a composition of a weed killer in a cotton field, consisting of an active component, an auxiliary agent and a carrier, wherein the active component consists of trifloxysulfuron sodium salt and carfentrazone-ethyl; the weight ratio of the trifloxysulfuron sodium salt to the carfentrazone-ethyl is (1:50)-(50:1); and the weight of the active component is 5%-90% of the total weight of the composition. The preparation formulation of the composition is a wettable powder agent, a water dispersible granule or a suspending agent. The composition of the weed killer in the cottonfield has the advantages that the weed killing spectrum is wide, the activity is high, the use amount is less, the cost is low, the influence on the environment and ecology is less, and the synergistic effect is good and the like.

The invention provides a bridge and a culvert type sheet-pile structure, which belongs to a building structure of a sea lane embankment in a shallow paralic area. The bridge and culvert type sheet-pile structure has two rows of reinforced concrete prefabricated sheet-piles of which the lower ends are inserted into a bearing stratum of a seabed, wherein a reinforced concrete prefabricated baffle and another reinforced concrete prefabricated baffle with a semi-round slotted hole are arranged on the inner sides of the upper parts of two longitudinal adjacent reinforced concrete prefabricated sheet-piles in a staggered way, and a third reinforced concrete prefabricated baffle with a semi-round slotted hole is arranged on the another reinforced concrete prefabricated baffle; the end part of a culvert pipe is mounted in a round slotted hole and sleeved on the two sides of a reinforced concrete beam at the upper parts of two transverse reinforced concrete prefabricated sheet-piles through through-holes on the two ends; and the upper ends of the two rows of reinforced concrete prefabricated sheet-piles are provided with reinforced concrete longitudinal beams respectively. The sheet-pile structure adopted has the advantages that: seawater on the two sides of the sea lane can be communicated freely; after a project is built, a sea stream field is not affected; ecology is hardly affected; the whole stability is high; a few protection structures are built; work amount is small; transportation and installation are convenient and quick; and post maintenance is little.

The invention discloses a method for regulating and controlling the growth of Phyllostachys pubescens seedlings. The invention can not only quickly and effectively regulate the growth rate of the moso bamboo seedlings, but also provide a reference for inhibiting the disorderly expansion of the moso bamboo forest or promoting the growth of the moso bamboo. Compared with the control, the photosynthetic rate of the Phyllostachys edulis seedlings regulated by the method of the invention can be reduced by 88.30%. Therefore, the present invention has significant ecological benefits and broad application prospects.