1270 results about "Arable land" patented technology

A method for improving and utilizing the serious saline-alkaline land at seaside includes such areas as digging ponds to build high-level field, arranging water supplying and draining ditches in the field, planting agricultural crops in the high-level field, and culturing aquatic animals in ponds.

Provided herein are synergistic herbicidal compositions containing and methods utilizing (a) a compound of formula (I):or an agriculturally acceptable salt or ester thereof and (b) an ACCase inhibitors, including. e.g., clethodim, clodinafop-propargyl, cyhalofop-R-butyl, diclofop-methyl, fenoxaprop-P-ethyl, fluazifop-P-butyl, haloxyfop-R-methyl, metamifop, pinoxaden, profoxydim, quizalofop-P-ethyl, sethoxydim and tralkoxydim, provide synergistic weed control of undesirable vegetation in rice, cereals, wheat, barley, oats, rye, sorghum, corn / maize, sugarcane, sunflower, oilseed rape, canola, sugar beet, soybean, cotton, pineapple, pastures, grasslands, rangelands, fallowland, turf, tree and vine orchards, aquatics, plantation crops, vegetables, industrial vegetation management (IVM) or rights of way (ROW).

New plant strengthening agents based on phytohormones for application in plant husbandry or arable cropping, preferably in fruit or wine growing. The invention relates to the use of a compound selected from the group gibberellin A4 (GA4), gibberellin A7 (GA7), gibberellin A3 (GA3), 1-naphthaleneacetic acid (NAA), N6-benzyladenine (BA) and S-abscisic acid (ABA), or of a mixture of at least two compounds selected from said group, as a plant strengthening agent, to formulations containing said active substances, as well as to a process for strengthening higher plants which is characterized in that a phytoactive amount of at least one of said compounds is applied to said higher plants, preferably to the epigeal parts thereof. Application in plant husbandry or arable cropping, preferably in fruit or wine growing, is preferred.

The invention discloses a device for simulating a pollutant migration and transformation process of purple soil slope farmland. The device comprises a soil bin, an artificial rainfall device and a slope ground surface incoming flow simulating device, wherein the soil bin is filled with purple soil and placed obliquely; slope ground surface incoming flow is simulated by the slope ground surface incoming flow simulating device in a manner that a peristaltic pump supplies water to an overflow water tank and enables the overflow water tank to overflow; a water conveying pipe of the artificial rainfall device is provided with a plurality of spray heads, and the spray heads are evenly arranged relative to the surface of the soil bin; and a plurality of surface runoff sampling ports and subsurface flow sampling ports are formed in the tail end of the soil bin and side faces of purple soil. According to the device disclosed by the invention, rainfall, slope incoming flow and the coupling of the rainfall and the slope incoming flow can be simulated, the temporal and spatial distribution characteristics of purple soil slope farmland pollutant migration and transformation in multiple hydrological processes are researched through adjusting various factors, and thus, the device is used for disclosing an interaction mechanism between the surface runoff and subsurface flow of the purple soil slope farmland and the pollutant migration and transformation.

The invention discloses a straw carbon matrix biological organic fertilizer and a preparing method. China is the largest fertilizer importing country and the largest nitrogenous fertilizer producing country in the world, and has 7% of arable land on earth, but usage amount of fertilizers and pesticides is 35% of global total amount, and yearly needed amount of fertilizers are 150,000,000 tons. The utilization ratio of fertilizers in China is only 35%-45%, the balance is fixed or leached by soil, causing environmental problems of water body pollution, lake eutrophication and the like. The straw carbon matrix biological organic fertilizer is prepared from, by weight, 60-70 parts of a compost raw material, 25-30 parts of straw carbon of a microbial agent with an adsorption function, 2-5 parts of zeolite powder, 2-5 parts of bentonite and 0.5-1 part of a binder. The straw carbon matrix biological organic fertilizer is applied to the field of bio-fertilizers and green planting.

The invention relates to a reclamation method for a sunk paddy field caused by mining in mountainous regions and belongs to the technical field of improvement and utilization of environment, ecology and damaged fields. The method includes: performing topsoil stripping to fissured positions where fissures are created by mining sinking and lead to water leakage of the paddy field; covering water holding materials on fissured areas after topsoil stripping; compacting the covered water holding materials, pouring slurry and standing; performing topsoil backfilling and grinding to the fissured areas after slurry pouring and standing, and flattening to enable the fissured areas to be a whole with pieces of the paddy field around the fissured areas; and irrigating, nourishing and improving the paddy field after backfilling and grinding. By the method, the cultivation land where the fissures are created by mining sinking and lead to water leakage of the paddy field can restore the paddy field utilization mode and reach production level of a normal paddy field as soon as possible, a stable self-maintaining farmland ecological system can be formed, a paddy field protecting system can be formed, soil microbial content can be increased, physicochemical property of soil can be improved, and benign farmland ecological system circulation can be formed.

The invention discloses a method for cultivating alfalfa in a low- salt and -alkali cultivated land, relates to a method for cultivating the alfalfa and solves the problems of low rate of emergence, low yield and low alfalfa wintering rate in a saline and alkaline land by the conventional alfalfa planting method. The method comprises the following steps of: 1, turning over soil of the low- salt and -alkali land in autumn and forming ridges; 2, softening and air-drying alfalfa seeds before sowing; 3, ditching in spring, watering, sowing and preventing against insects and weeding; 4, mowing in an early flowering season and mowing once every 30 to 40 days until 20 days before frosting; 5, mowing for the last time after frosting; and 6, keeping 16 and 25 percent of the water content (mass) of the soil in an alfalfa land after reviving in a second year, performing normal fertilizer and water management and mowing. The rate of emergence of the method is between 80 and 90 percent, grass yield in a first year is 25 to 28 percent higher than that of the conventional method and wintering rate is between 78 and 92 percent. The method is suitable for cultivating the alfalfa in the low- salt and -alkali cultivated land.

The invention relates to a reclamation method of subsided farm land after an earthquake disaster, belonging to the technical field of environment, ecology and waste land treatment and utilization. The method comprises the following steps of: carrying out surface soil peeling on subsided farm land caused by earthquake; filling and primarily shaping the peeled subsided area; carrying out insulating material covering and laminating on the primarily shaped subsided area; covering soil on the subsided area covered by the insulating material to further shape; and carrying out a biological improvement project on the soil covered and shaped subsided area. The invention ensures that the land damaged by the earthquake can be recycled and reach a higher production level as soon as possible so as to form a stale self-sustaining farm sustaining system, improve the microorganism contents of the soil, improve the physical and chemical properties of the soil and form a benign ecological system circulation.

The invention provides a multifunctional fertilizer and the manufacturing method thereof, and is characterized in that the fertilizer is composed of particle material cores and coated powder, and is formed by the following three steps: firstly, the particle material cores are prepared; secondly, the coated powder is prepared; thirdly, the multifunctional fertilizer is compounded. The multifunctional fertilizer contains all balancing plant nutrient elements, and 6 functional bio-fungus agents which are inoculated with the HA-organic fertilizer are coated on the particle material cores containing the 16 nutrient elements which are required to be absorbed by the plants in a balanced manner, thereby improving soil, activating fixed and settled nutrient elements in the soil, preventing losses caused by instant fertilizer application, nitration, fixation, eluviation and volatilization, improving the effective utilization rate of the fertilizer to the greatest extent, changing poor farmland into rich soil, and leading to benign circulation. The multifunctional fertilizer integrates the advantages of physical fertility, chemical fertility and biological fertility into a whole, thereby representing a high-quality and high-efficient multifunctional fertilizer used for producing green agricultural products, saving energy in all aspects, reducing consumption, and facilitating environmental protection.

The invention discloses a farmland planting method of high-selenium crops. The method is characterized by comprising the following steps: (1) uniformly mixing a nano selenium plant nutrient with a base fertilizer, applying the mixture to the surface of farmland soil and plowing so that the nano selenium plant nutrient is uniformly distributed on a plowing layer; (2) uniformly seeding on the farmland soil according to the crop types, and wetting and irrigating the soil surface layer 5-10 days after the crop seedling emerges; and (3) performing conventional field management on the crop according to different crop types until the crops are mature. According to the invention, the high-selenium crops can be cultivated, the selenium content is stable, and the proportion of organic selenium is high.

The invention relates to a land transformation method, in particular to a saline and alkali land improvement method. The method comprises the following steps: the saline and alkali land to be improved to is changed into an alternant land for a trench land and ridges; a layer of fine flowing sand or sandy loess with thickness of 3-3.5 cm is evenly laid on the trench land, the saw powder and the chopped grass with thickness of 1-1.5 cm are laid, and the plowing depth is 5-15 cm and is not excessively deep; the trench land is filled with water during the watering process and the ridge cannot be filled with water as possible; the saline and alkali tolerant high-quality corn variety is selected and planted or the agropyron elongatum can be planted; after the young seedlings grow out, the traditional intertillage management is carried out; after the seeds are harvested, the straw returning is carried out; as for the land tillage in the second year, the sand with thickness of 2-5 cm is laid, the saw powder and the chopped grass with thickness of 1-3 cm are laid, then a certain amount of farmyard manure is applied and the rest is the same as the tillage in the first year; as for the land tillage in the third year, the ridges on both sides of the land are respectively taken as the lands with one eighth width during the tractor-ploughing process, so the trench land is increased, and other parts are repeated according to the tillage in the second year; as for the land tillage from the fourth year to the sixth year, the tillage method in the third year is repeated; and the improvement of the whole saline and alkali land is finished after six years. The invention can enable the saline and alkali land to be changed into a fertile land, thereby thoroughly harnessing the saline-alkali land.

The invention relates to a pesticide composition, in particular to a compounded weed killer of glyphosate and glufosinate, which can be used for preventing and controlling weeds in farmlands, orchards, tea gardens, vegetable fields, uncultivated areas and the like.

The invention discloses a method for regulating and controlling limited downslope tillage of a corroded slope farmland, which comprises the following steps of: firstly dividing each land block on the slope farmland into a plurality of small farming units along the contour direction; and then carrying out downslope tillage on each farming unit. The land blocks are respectively divided into a plurality of small farming units through horizontal ditches or ridges. In the invention, flow lines of sheet flows are cut by dividing the length of the slope; a runoff quantity hydrograph is smoother than that of the original slope surface; the water flow speed of the slope surface is reduced; the resistance time of the sheet flows on the slope surface is prolonged; infiltration is increased; the surface runoff is reduced; the sediment transport capacity of the flow is obviously reduced; soil losses are greatly reduced; and the water and soil conservation capacity of the slop farmland can be effectively improved. The method is simple, convenient and labor-saving to operate, can achieve the effect on soil and fertility conservation by adopting simple measures, has small investment and a low cost and has the characteristics of high efficiency, practicality, convenience for farmers to receive and the like.

The invention discloses a method for interplanting of mulberry-branch black fungus on a mulberry tree. The method comprises the steps of: selection of the interplanting time, collection and processing of mulberry branches, production of a formula and a bag of materials for culture of the mulberry-branch black fungus, promotion of growth of the black fungus, setting of the black fungus, and cultivation in the sunlight with or without intermediate cuttings of the mulberry tree. The method is characterized in that: a grafted bag is interplanted in a mulberry field, and a place for growth of the mulberry-branch black fungus is provided based on natural shading conditions of the mulberry field; and the culture materials comprises mulberry chippings with the mass percentage of 40-80 percent and other auxiliary materials. In the mulberry growing season, grafting is performed for the bag and mycelia are cultivated, semi-daylight cultivation is performed among and under mulberry trees according to the interplanting method, and full-daylight cultivation is performed after intermediate cuttings of the mulberry trees. The mulberry-branch black fungus is interplanted in the mulberry field, no land resources or special facilities are needed, the production cost can be reduced, economic benefits can be improved, and residues of the black fungus can be directly applied in the field to promote the growth of mulberry trees and fertilize the land.

The invention relates to a loach cultivation method and in particular relates to a planting-cultivating combined farmland loach low-carbonized cultivation method which is used for cultivating loach in a farmland meeting the demands of planting core, taro or rice. The method comprises the following steps: 1) ditching and ridging the farmland and building 1-2 soil slopes on each ridge at an interval of 30m-80m, wherein the ditch width of the ditches among ridges is characterized by alternated narrow bands and wide bands, the ditch depth of the ditches in ridges is characterized by alternated shallow ditches and deep ditches, and all the ditches in ridges are communicated with edge slots around the farmland, thereby ensuring the unobstructed ditches; 2) cultivating loaches in the ditches among the ridges based on the condition that 2000-50000 loaches are put into per mu of the farmland; 3) planting crops on the soil slopes built in the step 1); and 4) putting earthworms into a ridge platform based on a quantity standard of 100-350kg / mu. The planting-cultivating combined farmland loach low-carbonized cultivation method is used for solving the low-income problems of the traditional methods for cultivating loach and purely planting crops in the farmland and fully utilizing the farmland resource, improving the ecological environment in the farmland, and has the characteristics of realizing the multiple-year benefits from once investment and the like.

The invention discloses a remote-controlled mountain tractor, which comprises a frame (9), an engine (12), a gearbox (6), a clutch, a driving wheel (5), a driven wheel (10), a crawler belt (16), and a hydraulic drive device (14), the signal receiving and processing device (15), is characterized in that: the left and right sides of the frame are symmetrically connected with a hydraulic pressure differential height device for adjusting the left and right balance of the body. The invention applies the remote control technology to the tractor, and each action can be controlled by the signal transmitting device, realized by the hydraulic drive device, and the operation is simple. Because the machine can remotely control the lifting of the height difference device on both sides according to the terrain conditions at any time, maintain the level of the fuselage and prevent rollover, and can also increase the height of the frame by simultaneously lifting the hydraulic cylinder to realize the cultivating operation of the conventional plow. It fully adapts to the working environment in rural areas, especially in mountainous and hilly areas, and completes operations such as arable land, dry farming variable water application, ridge mulching, and harvesting.

A combined cultivation method for water and soil conservation for sloping farmlands relates to cultivation methods for water and soil conservation and solves the problem that using the single cultivation technique for holding water is unsatisfactorily effective. The combined cultivation method includes: firstly, adjusting ridges of sloping farmlands on downward slopes and inclined slopes under ridge plowing adjusted into transverse slope ridges, and adopting contour farming and belt planting; secondly, building ridges, and planting protective plant belts on the ridges; thirdly, subsoiling forfarming; fourthly, performing furrow damming; and fifthly, performing no-tillage conservation tillage. Furrow subsoiling and furrow damming are technically combined and integrated according to soil and weather characteristics of a black soil area, so that water and soil loss is reduced or avoided for sloping farmlands to the greatest extent, water and soil are conserved, water utilization rate isincreased, and crop yield is increased evidently. By the method, soil saturation and infiltration speed ratio is increased by 24.1% in processing treatment, water utilization rate is increased by more than 15%, crop yield is 30kg per mu, and 100 Yuan per mu is increased..

The invention discloses a Ferris wheel type farm, which aims to solve food crisis caused by danger of over population, shortage of farmland, land abandoning, agricultural pollution, weather change and logistics dilemma. The Ferris wheel type farm is characterized in that the Ferris wheel type farm is a greenhouse facility which is arranged on a vertical surface and capable of moving circularly, comprises Ferris wheels, a sail transmission system, a water circulation system, a microclimate planting chambers, movable planting racks, a wind and solar hybrid power generating system, point-of-sale terminals and organism recirculation devices.

A rack system for growing crops includes a first stand, a second stand, and a base supporting the first and second stands. At least one tray holder is positioned on each of the first and second stands, and at least one rack tray has a plurality of attachment points at opposite ends of the at least one rack tray. The attachment points allow the at least one rack tray to tilt to a plurality of predetermined angles. The rack can be pre-fabricated or composed of multiple independent pieces. The trays tilt to various calibrated angles and provide a maximum amount of light on the trays. Further, the rack system can have various attachments and can be optionally setup in a controlled environment. The rack system can be set up over existing arable land or in un-utilized locations where irrigation is sourced from below a body of water.

The invention relates to a solar facility of a high industrial production line of forage grasses, vegetables, flowers and medical materials, which consists of an insulating production room, a chain ring cycle framework, a nutrient solution culturing plate, carbon dioxide gas, a thermocouple generator, a solar lens thermoelectric generator, a solar cooker thermoelectric generator, a solar lens thermoelectric generator, a heating bag and an LED power generation lamp. The facility can provide renewable energy sources and translucent insulation effect for the high industrial production line. The all-weather heating, insulation and light supplementation can be realized in the facility. The adoption of nutrient solution for culture increases the growth speed and prevents diseases and pests, and the forage grasses, vegetables, flowers and medical materials can be harvested all year round. Another significant feature of the facility is special development. The facility can save a large quantity of farmland, water resources and fertilizers, and can be used for all-weather production in any place (deserts, mountain areas, areas without power supply and areas in front of and behind houses). Moreover, the facility is a significant subject studied around the world at present. The invention can develop new living space for human beings, and has incalculable environmental, economic and social benefits.

The invention discloses a county-level crop planting area remote sensing statistic sampling survey scheme design method. Multi-period up-to-date GF-1 16-meter-width images are adopted as a data source; a decision tree classification method is constructed to perform automatic interpretation, so that the spatial distribution condition of crops in a research area can be obtained; with the spatial distribution data of the crops adopted as a sampling population, on the basis of the arable land area and crop planting scale of the research area, a PPS sampling method is adopted to select a general survey region; various sample unit sizes and various sample unit quantities are designed in the selected general survey region, the quadrat unit sizes, quadrat sample unit quantities, sampling methods and calculation methods are combined randomly, the calculation results of the statistic sampling survey schemes of different combinations are compared with the planting area of target crops which is obtained through the data interpretation of GF-2 0.8-meter-resolution images; and analysis is performed according to the overall sampling accuracy, sampling stability and minimum sample capacity of result data, and a remote sensing statistic sampling survey scheme most suitable for the target crops of the research area can be obtained.

The invention relates to a rainwater collection and water-saving irrigation pollution control system and method for a sloping field, wherein contour no-tillage straw mulching and contour plant hedgerow measures, rainwater collection cellars and gravity trickle irrigation equipment are comprised. The rainwater collection and water-saving irrigation pollution control method comprises the following steps of: designing 2-4 rainwater collection cellars from a slope top to a slope bottom according to the terrain of a river basin sloping field, wherein the sloping fields which is positioned above the rainwater collection cellars and subjected to the contour no-tillage straw mulching and contour plant hedgerow measures are taken as rainwater collection surfaces, and the rainwater collection cellars are mainly built in a semi-underground way, provided with two rainwater outlets along the ground and cellar bottoms and respectively connected with 2-4 gravity trickle irrigation equipment; and carrying out partitioning gravity trickle irrigation on sloping farmlands positioned below the rainwater collection cellars. The invention can effectively reduce the pollution of water losses and soil erosion on a water body by carrying out space-time integrated regulation and control on the water losses and soil erosion of the sloping field and the redistribution of collected rainwater according to the change of raining time and the characteristics of the sloping field, and solve the problem that the sloping field can not be irrigated in a dry season through the redistribution of the collected rainwater, thereby enhancing the multiple-cropping index and the output of crops of the sloping field; and in addition, the invention can be widely used for the integrated management and control of therainwater for the sloping fields in the southwest regions in China.

The invention discloses a method for improving coastal saline soil by gathering rain water and suppressing evaporation. The method comprises the following steps: 1) fertilization: applying organic fertilizers and superphosphate; 2) plough: ploughing the soil to a depth of 15 to 30; 3) cofferdam building and land leveling: raising a network of soil ridges to form land pieces in different sizes and leveling each land piece encircled by the ridges; 4) covering plastic film: covering each land piece encircled by the ridges with a plastic film which has a plurality of pores for allowing rain water to flow into soil to wash off salts in the soil; 5) planting sesbania in the pores which can fertilize soil, cover plant residue, reduce land-surface evaporation and slow down the aging of the plastic film. The method, when large amount of fresh water is not available, can use rain water and a rain water gathering and evaporation suppressing agricultural technology to reduce salt content in the coastal saline soil effective and improve and use the coastal saline soil.

The invention relates to a cultivation method of alfalfa. The cultivation method includes the steps: in the land selection step, a plot with deep, thick and loose soil and less prone to waterlogging is selected, the plot is tilled, crop rotation is performed, gramineous crops or root crops are planted as previous crops as required, and continuous cropping of leguminous crops as precious crops is forbidden; in the land preparation step, 28cm deep cultivation is performed after the previous crops are harvested, the surface is leveled in time, weeds are removed, raking, leveling and compacting are performed, and moisture preservation and water storage are performed; in the base fertilizer application step, organic fertilizer special for alfalfa is used, and 20kg-25kg of the organic fertilizer is applied per mu as base fertilizer; in the variety selection step, AiFeiNiTe alfalfa is selected; in the seed treatment step, seeds are cleaned and aired for 2-3 days before sowing and are then soaked in seed soaking agent and subjected to nodule bacteria inoculation.

The invention provides an under-forest wild-imitating planting method for polygonatumkingianum. The under-forest wild-imitating planting method includes the steps of seedling selection, pregermination in sand bed and under-forest planting, wherein the under-forest planting includes the steps of soil preparation, furrowing, field planting, fertilization, disease elimination and weeding. The method has the advantages that seedling emergence and growth situations during planting are good, growth time is shortened as compared with that of wild growth, less cultivated land is used as compared with that in field planting, pesticide and chemical fertilizer residues are reduced, product quality is improved, forest land output benefits are increased, and the method is suitable for not only production application of individual peasant households but also large-scale corporatized operation. The method has the specific advantages of less cultivated land use, benefit to grain safety, capability of widening forestry income range, benefit to forest resource protection, reduction of production cost of a genuine medicinal material, namely the polygonatumkingianum, and improvement on product quantity.

The invention discloses a farmland ricefield eel cultivating method. Ditching and ridging are carried out on a farmland meeting the requirements of planting taro, corn or paddy, the width of ridging channels are determined by narrow bands and wide bands at intervals, the depth of the ridging channels are determined by shallow ridges and deep ridges at intervals, and the ridging channels are mutually communicated. 1-2 soil slops are built on each ridge every other 25-100 m. Crops are planted on the ridges, ricefield eel seeds are thrown in the channels for cultivating ricefield eels, and angleworms are placed on the ridges for feeding the ricefield eels. In the invention, an innovated mode and technology for planting crops and cultivating ricefield eels is constructed, the problem of low income of the traditional ricefield eel cultivating method and pure crop planting of the farmland is solved, the cultivated land resource of the farmland can be sufficiently utilized, and the ecological environment of the farmland is improved. By adopting the technology, farmers can obtain benefits for many years after investing once.

The present invention relates to an industrialized grape matrix cultivating method realized by the following steps: environmental conditions; matrix groove sizes; matrix selection and preparation; frame condition and tree shape control; solid manure water management; root trimming; and tree conditions, production volume and quality. The present invention has the advantages of that not only the effective utilization factor of farmland can be largely improved, the production cost is reduced, the quantized control of solid manure water can be realized, the generating rate of soil-borne diseases and the using volume of agricultural chemical can be reduced, but also a cultivating mode of a small flat-shed frame and a double main vine support frame is used, which is favorable to spread the touring function of grapes cultivated by industrialized matrix and rich city agriculture contents.

The invention relates to a method of sterometer cultivating bean and corn in the same field, belonging to field of agricultural cultivating technology, which comprises seed choosing, seed immersing, tillage, fertilizing, sowing and field management, the field management comprises spraying weedicide, thinning, additional maturing, spraying pesticide on foliage. The method can increase the area under cultivation effectively and economic benefit greatly.

The invention relates to a method for cultivating shiitake in woodland. The method comprises the steps that shiitake bacterial strains are inoculated in a plastic bag with cultivating materials and shiitake bacterial sticks are obtained after spawn generation and after-ripening cultivation; the woodland with the canopy density of 0.45-0.75 serves as a cultivation zone, a pit is dug in the ground under a tree and 0.6-1 meter away from a trunk and serves as a cultivation pit; the plastic film is removed from the shiitake bacteria sticks and placed in the cultivation pit, the cultivation pit is covered by a mixture of a dug humus layer and a dug soil layer and compaction, thorough watering and soil layer spawn generation are conducted; according to the temperature characteristic of the shiitake bacteria strains, hypha is cultivated for 15 days-60 days under the condition that the temperature is 4 DEG C to 36 DEG C and fruiting is conducted at the temperature of 5 DEG C-30 DEG C. The method for cultivating the shiitake is high in fruiting rate and the biology efficiency is improved by about 30% compared with that of the manual cultivation technology; the flavor and taste of the shiitake product approach those of wild mushrooms; a cultivated land does not need to be occupied, mushroom residue waste materials can be directly resolved and used by a tree root, the environment is protected and cyclic development is achieved.

The present invention relates to a mechanical weed seed management system and device for use on a harvester. The device comprises a plate to separate straw waste from chaff waste after their discharge from the harvester; a chute to catch, direct, and deposit the straw waste to the ground; and an annular trough comprising a means for transporting material through its length, for catching, transporting, and depositing the chaff waste on top of the straw waste on the ground, wherein the trough is of a depth greater than 150 mm, and wherein the plate directs the straw waste from the harvester to the chute. The system for the management of weeds in farmable land comprises the device.