Abstract
The adoption of in-situ soil and water conservation techniques are the need of the day all over the country. Taking into consideration this logic, the experiment on practical implementation of the conservation measures along with impact assessment was undertaken at AICRP for Dryland Agriculture Dr. PDKV, Akola. In which impact assessment of continuous contour trenches (CCTs) on hydrological, agronomic, soil nutrient status has been made. In this paper the results related to soil nutrient losses are presented. The small catchment was divided into two parts one is treated with CCTs and other is without CCTs. From the recorded data and nutrient status analysis, it was observed that in CCT treated (T1) micro-catchment Nitrogen, Phosphorous and Potassium was more by 25 %, 15.31% and 9.96% respectively over untreated (T2) micro-catchment. The micro-nutrients viz. Zinc, Ferrous, Magnesium and Copper in CCT treated micro-catchment was observed more by 15.56 %, 7.70%, 23.07% and 37.54% respectively over untreated (T2) micro-catchment. The pH and EC was also observed to be more in CCT treated (T1) micro-catchment as compared to untreated (T2) micro-catchment. These results conclude that in CCT treated micro-catchment the losses of nutrients had been reduced which ultimately useful for plant growth. Thus continuous contour trenches are useful for conservation of soil nutrients.
Highlights
Agricultural drought is common in Dryland agriculture
The soil analysis was done to know the nutrient status of the soils in continuous contour trenches (CCTs) treated as well as untreated catchment in custard apple and atemoya plantation
From these tables it is observed that the nutrient/ micronutrient status of CCT treated soils is more as compared to untreated soils for both the plantations
Summary
Agricultural drought is common in Dryland agriculture. Soils of shallow depth, low fertility, and poor water holding capacity and the resultant soil moisture stress during crop growth are some of the major constraints. The micro catchments A and C are treated (T1) with continuous contour trenches (CCTs) and B and D are untreated (T2). Phosphorus, Potassium and Micro nutrient were calculated in treated (T1) and untreated (T2) micro-catchment.
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