1) Soil sampling and _________ are important to determine the pH level of the soil and the nutrients present in the soil. a) soil analysis b) soil gathering c) soil collection 2) It is a measure of the degree of acidity or alkalinity. a) Soil sampling b) Soil analysis c) Soil pH 3) Soil pH that is lower than 5.0 has deficiencies of ________. a) Iron b) Phosphorus c) Zinc

PRE TEST AGRICULTURE 9

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?