Fertilizer Recommendation Practices for the Most Popular Crop Rotations in Arkansas Under Conventional and Reduced Tillage Systems
نویسندگان
چکیده
A number of tests to study the yield response of cotton and soybean to several fertility programs, under conventional, no-till, and stale-seedbed production systems were established at the Cotton Branch Station near Marianna, Ark. Soil samples (0 to 6 inches) were collected prior to planting and extracted using the Mehlich3 procedure (extraction ratio of 1:7), with nitrate-N measured with a selective ion electrode, and pH determined in a 1:2 soil:water mixture. The soil at the test site is classified as a Memphis silt loam. For all experiments, tillage and fertility treatments were replicated four times and arranged in a randomized complete block design.
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