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- W2382547966 abstract "[Objective]The aim was to study the water and fertilizer matching of corn,so as to fully develop the yield increasing action of fertility and enhance corn yield.[Method]The 2-factor and 3-level orthogonal test design was used in field experiment and then the influences of different fertilizer and water combinations on corn yield were studied.[Result]The average corn yield was 471.7 kg/mu and its variation range was 437.6-496.5 kg/mu.When the water content in soil was 14.5%,the primary-secondary conversion threshold of fertilizer effect and water effect was 16.3 kg/mu;when the fertilizer amount exceeded 16.3 kg/mu,the water effect was more significant that fertilizer effect;when the fertilizer amount was lower than 16.3 kg/mu,the water effect was less significant that fertilizer effect.When the fertilizer amount was 18.0 kg/mu,the primary-secondary conversion threshold of fertilizer effect and water effect was 15.4%;when the water content in soil was higher than 15.4%,the water effect was less significant that fertilizer effect;when the water content in soil was lower than 15.4%,the water effect was more significant that fertilizer effect.The effect equation between water,fertilizer and yield was decreasing return function;when the yield exceeded its maximum value,it was decreased along with the increase of water content in soil and fertilizer amount.Theoretically,when the water content in soil was 23.0% and the fertilizer amount was 35.0 kg/mu,the yield reached its maximum value of 549.0 kg/mu.[Conclusion] There existed obvious coupling effect between water and fertilizer and it was necessary to considering water and fertilizer effect comprehensively for enhancing corn yield." @default.
- W2382547966 created "2016-06-24" @default.
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- W2382547966 date "2010-01-01" @default.
- W2382547966 modified "2023-10-16" @default.
- W2382547966 title "Research on the Synergistic Effect of Water and Fertilizer in Film-pore Irrigation on Corn Yield" @default.
- W2382547966 hasPublicationYear "2010" @default.
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