7 results about "Land productivity" patented technology

The invention discloses a method for improving acid yellow soil and improving soil fertility. The method comprises the following steps: S1, preparing a composite modifier; the preparation method comprises the following steps: preparing modified biochar, namely selecting at least one of corn straws, rice hulls or sawdust as a biomass raw material, crushing the biomass raw material until the particle size is 2-5mm, soaking the biomass raw material in a 4mol / L NaOH solution for 6 hours, and stirring once every 2 hours at the stirring speed of 150r / min during soaking. The acid yellow soil is systematically improved through the synergistic effect of preparation of the composite modifier, layered improvement construction, functional microorganism enhancement and biological disturbance assistance, and compared with the prior art, the method has the remarkable beneficial effects.

The invention relates to the technical field of farmland improvement. The invention provides an ecological improvement method based on improvement of land fertility of reclaimed cultivated land. The ecological improvement method comprises the following steps: (1) leveling a field; (2) field irrigation; (3) sowing the cichorium intybus; (4) chicory heading and covering; (5) putting earthworm seedlings; (6) chicory heading, covering and the like. According to the invention, a cichorium intybus-earthworm-microbial inoculum composite ecological system is utilized to improve the physicochemical properties of the reclaimed soil, improve the soil fertility of a plough layer and promote the restoration of a soil ecological system of the reclaimed land. According to the scheme, a set of'animal-plant-microorganism 'composite ecological system is constructed by adopting a'chicory-earthworm-bamboo fiber fungicide' ecological system, so that the improvement and fertilization effects of the reclamation land are remarkably improved.

The application discloses a method for preparing a soil conditioner by recycling fly ash, by-product gypsum and furnace bottom slag. The method uses fly ash, by-product gypsum and furnace bottom slag as raw materials, and the raw materials are subjected to grading pretreatment, directional modification and activation of mineral activity, and then are combined with soil detection data for accurate soil matching to form finished products through granulation and low-temperature drying. The application solves the problems of high heavy metal activity and inaccurate formula of traditional solid waste-based conditioners, realizes safe and efficient utilization of bulk solid waste, and can effectively improve soil, improve land productivity and promote crop yield increase, and has remarkable ecological, economic and social benefits.

This invention provides a wheat bio-fertilizer with saline-alkali soil improvement function and its preparation method, belonging to the field of agricultural fertilizer technology. The fertilizer comprises: mineral-loaded microbial granules, additives, organic materials, and a coating slow-release component, with the following weight ratio: mineral-loaded microbial granules: additives: organic materials: coating slow-release component = (10-20):(3-7):(5-10):2; the additives include at least one of seaweed polysaccharide, potassium humate, and desulfurized gypsum; the organic materials include straw biochar, wood vinegar, and well-rotted manure; the coating slow-release component is starch and carboxymethyl cellulose. The microorganisms in this fertilizer have a long survival time in the soil and exert a more lasting effect. Working synergistically with other components, it simultaneously achieves multiple goals of "soil improvement, growth promotion, and disease resistance," enhancing land productivity, wheat yield, and quality, and providing biological control of wheat diseases. It also improves saline-alkali soil and has a wide range of applications.

The invention discloses a sustainability and elasticity evaluation method for a photovoltaic power station and surrounding land, and the method comprises the steps: marking a construction period of the photovoltaic power station as a disturbance period, and determining a baseline period and an evaluation period; the outer edge of the photovoltaic array extends outwards by 240 meters to delimit a control area, and a contrast area is selected; dividing the evaluation units by using a 30m * 30m grid; calculating a resistance index, a restoring force index and an elasticity index based on four dimension evaluation indexes of land cover change, land productivity, desertification degree and vegetation condition; evaluating the photovoltaic development influence by adopting a BACI analysis method; calculating an index weight by using an entropy weight method to obtain a comprehensive sustainability index CSI; according to the invention, a scientific basis is provided for photovoltaic power station planning and construction and ecological environment management.

The invention discloses a cultivation method for increasing the yield of imitated wild herba epimedii, and relates to the technical field of cultivation of traditional Chinese medicinal materials. The method comprises the steps of seed source optimization treatment, simulated wild habitat construction, precise planting, dynamic field management and scientific harvesting and alternate planting, specifically, high-quality seeds or rhizomes treated with rooting powder are screened, a simulated wild habitat is constructed in a forest land meeting specific altitude, gradient and soil conditions, qualified seedlings are planted according to the standard plant row spacing, and the seedlings are planted in the forest land. Dynamic regulation and control are achieved through illumination regulation and control, precise water and fertilizer management and comprehensive prevention and control of diseases and pests, scientific harvesting is conducted after planting is conducted for two years, and rotation and soil improvement are conducted. According to the method, through fine regulation and control in the whole process, the simulated wild quality of the herba epimedii is guaranteed (effective components are close to the wild level), meanwhile, the seed germination rate and the seedling survival rate are remarkably increased, the occurrence rate of plant diseases and insect pests is reduced, the planting period is prolonged, the land productivity is improved, the unit area yield and planting benefits are increased, and many defects of an existing cultivation technology are overcome.

The application discloses a method for improving land productivity, which comprises the following steps: sowing fresh waxy corn in the form of reserving a cotton planting zone between every two corn planting zones in Handan city in early March, planting two rows of corn with a row spacing of 50 cm in each corn planting zone, and the width of the cotton planting zone is 242 cm; and sowing three rows of hybrid cotton with an equal row spacing of 76 cm in the cotton planting zone in early May, the row spacing is 76 cm, and the distance between each row of hybrid cotton and the adjacent row of corn is 45 cm, so as to improve the land productivity. The method is suitable for Handan city, the growth time and space of the two crops are reasonably distributed, the two crops do not affect each other, the light conditions in the two crop groups are fully improved, the soil nutrients and water are reasonably distributed, the cotton yield in unit area is normal, more corn is harvested, and the purpose of increasing the income of farmers is achieved.