Variations of soil fertility level in red soil region under long-term fertilization. Effect of long-term fertilization on crop yield and soil fertility of upland red soil Evaluation of agricultural net primary productivity in Yijinhuoluo County,Inner Mongolia The Compensatory Mechanism in Exploring Crop Production Potential Effects of a long-term located fertilization on the fertility and productivity of Shajiang Black Soil The shading and its effect on crop yield under poplar-crop intercropping system Effect and mechanism of organic-inorganic compound fertilization on chemical fertilizer utilizationI. Effect of urea compounded with organic material on maize yield and fertilizer utilization Approach and decision support system based on crop yield response and agronomic efficiency Effects of long-term fertilization on crop yield and indigenous soil nutrient supply in Hexi Oasis of Gansu Province Change of soil fertility indices and crop yield of cinnamon soil and its affecting factors Study on soil water storage, crop yields and incomes under different soil tillage patterns with balance fertilization in the Loess Dryland region Study on the enhancement and mechanism of organic-inorganic compound fertilization on inorganic fertilizer utilization II. Effects of ammonium phosphate combined with organic material on Effects of long-term fertilization on pH of red soil, crop yields and uptakes of nitrogen, phosphorous and potassium Contribution of fertilization development in food production and its geographic differentiation Effects of climate change and agricultural technology improvement on evapotranspiration and crop yield Effect of long-term potassium application on irrigated soil potassium and on the yield and nutrient of crops Effect of different fertilization systems on soil phosphorus fertility and crop yield Effects of long-term straw return on soil fertility, nitrogen pool fractions and crop yields on a fluvo-aquic soil in North China Study of  tillage patterns suitable for soil physicochemical properties and crop yields in wheat/maize fields CENES UNDERLYING PLANT ARCHITECTURE:TARGETS FOR INCREASING GRAIN YIELDS BY GENETIC MANIPULATION Effect of Straws,Manure and Chemical Fertilizer on Soil Properties and Crop Yields Effects of ammonia fumigation on soil microflora and banana production in an orchard with serious Fusarium wilt disease Evolution of soil organic carbon and crop yield under long-term fertilization in grey desert soils Research advances and perspectives on crop yield estimation models Simulating Soil Water Dynamics and Its Effects on Crop Yield Using RZWQM-CERES in the North China Plain Effect of earthworm inoculation on soil carbon and nitrogen dynamics and on crop yield with application of corn residues Effect of long-term single application of chemical fertilizer on soil properties and crop yield Effect of plastic film mulching on crop yield and nitrogen efficiency in semiarid areas Effects of long-term K application and straw returning on crop yield and soil K status in fluvoaquic soil of Hebei Province Study on the enhancement and mechanism of organic-inorganic compound fertilizer on inorganic fertilizer utilization III. Effect of potassium sulfate combined with organic material on maize yield and K fertilizer utilization Short-term influence of straw return on the contents of soil organic carbon fractions,enzyme activities and crop yieldsin rice-wheat rotation farmland Poplar-Crop Interplantation:a Case Study for Its Ecological Benefits, Site Productivity and Economics Crop yield and fertilizer contribution under different fertilization systems Effect of long-term located organic-inorganic fertilizer application on fluvo-aquic soil fertility and crop yield Meta-Analysis of Evolution Trend from 1950s to 2000s in the Relationship between Crop Yield and Plant Density in Maize Application of the combination of genetic algorithm and artificial neural network on crop yield estimation in Jilin Province EFFECT OF RADIATION TRANSMISSION ON CROP YIELD AND QUALITY The effects of long-term fertilization on crop yields and farmland nutrient equilibrium THE CHANGES OF CROP YIELD AND SOIL FERTILITY WITH LONG-TERM FERTILIZER APPLICATION Status and perspective of crop yield gap Effect of elevated CO2 concentration and increased temperature on physiology and production of crops Crop yield and soil biochemical properties under different nitrogenfertilization and irrigation management schemes Response of Olsen-P to P balance in yellow soil upland of southwestern China under long-term fertilization. Much Improved Irrigation Use Efficiency in an Intensive Wheat-Maize Double Cropping System in the North China Plain Spatiotemporal variations of crop radiation use efficiency and harvest index: Research progress. Effects of long-term N application and straw returning on N budget under wheatmaize rotation system Cause and mechanism of winter wheat yield reduction under straw mulch in the North China Plain Effects of combined straw and N application on the physicochemical properties of lime concretion black soil and crop yields Yield-increase efficiency of using recycled nutrients in agro-ecosystems Changes of crop yields and soil fertility under long-term application of fertilizer and recycled nutrients in manure on a black soil Effects of continuous application of bio-organic fertilizer on banana production and cultural microflora of bulk soil in orchard with serious disease incidence. The Dynamics of Crop Yields under Different Fertilization Systems in Drab Fluvo-aquic Soil Risk analysis of climate variability on food production in Hailun, Northeast China