Farmers use different kinds of soil conservation methods to protect their land from damage by farming and the forces of nature . One important form of soil conservation is the use of windbreaks . Windbreaks are barriers formed by trees and other plants with many leaves . Farmers plant them in...
根据一段品后一句One inportant forn of soil congervation is the use of windreaks 可推断,闪保护一量最好的方法之一,故y抑述正确;根据邻二段是后一句They sre very inpprtant for sroving grains, uch ss wheat,白判断的水准硝;中后一段第一句There should be at least two lines in cach windbreak ...
Different kinds of soil conservation methods are used by farmers to protect their land from damage by farming and the forces of nature. One important form of soil conservation is the use of windbreaks. Windbreaks are barriers (屏障) formed by trees and other plants with many leaves. Farmers pl...
1.Farmers use different kinds of soil conservation methods to protect their land from damage by farming and the forces of nature.One important form of soil conservation is the use of windbreaks.Windbreaks are barriers formed by trees and other plants
Farmers use different kinds of soil conservation methods to protect their land from damage by farming and the forces of nature . One important form of soil conservation is the use of windbreaks . Windbreaks are barriers formed by trees and other plants with many leaves . Farmers plant them in...
(maize), 2) a folder grass-growing plot seeded with Lolium perenne , 3) a young alder tree-growing plot, 4) a pear orchard plot and 5)a bamboo plot intercropped with folder grass, were monitored to compare the soil conservation efficiency of those changes in Ya'an, Sichuan for 3 ...
A field experiment was conducted to study the effect of different soil moisture conservation practices on evapotranspiration and growth of young tea (Camellia sinensis L.) plants. Treatments were: control (T1), farmyard manure at 62 tons ha-1 (T2), farmyard manure at 124 tons ha-1 (T3), ...
For the result of emergy, the ranking of the four conservation tillage was: CT3CT4CT2CT1. However, the ranking order was CT2CT1CT3CT4 for ES and CT2CT3CT4CT1 for the LCA method. These results indicated that multiple methods were needed for holistic evaluating the eco-ecological ...
Conservation Tillage and Weed Management(保护性耕作和杂草处理) 热度: MSDE Geometry Activity-Different Methods of Proof:MSDE几何证明活动的不同方法 热度: Screw dislocations in GaN grown by different methods(通过不同方法生长的GaN中的螺丝位错) 热度: 相关推荐 第30卷第6期农业工程学报Vol.30No.6...
In Methods of Soil Analysis. Part II; Agron. 9, 1324–1345. Ellenberg H 1964 Stickstoff als Standortsfaktor Ber. Deutsch. Bot. Ges. 77, 82–92. Gerlach A 1973 Methodische Untersuchugen zur Bestimmung der Stickstoff Netto-Mineralisation. Scr. Geobot. 5, 1–116. Németh K 1976 Die ...